RCA MRM400 Instruction manual
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MRM400
TM
VHF Marine Two-Way Radio Instruction Manual
Congratulations on selecting the MRM400
TM
from
RCA Communications Systems - The Most Trusted Name In Radio!
Our new series of business communications products establishes a new benchmark in premium radio products made to perform flawlessly under the most demanding commercial conditions. Cutting edge design, professional grade materials and components, simple operation and superior assembly quality - RCA
Communications Systems has it all, including our exclusive no-nonsense, two-year “Warranty Protection
Program,” one of the most comprehensive warranties in the communications industry.
To ensure maximum performance from your MRM400
TM
radio, please be sure to carefully read this manual.
1
CAUTION:
■
Never use the Distress call unless you are in an emergency.
■
Do not use or place the transceiver in areas of heat, humidity and dust.
■
The working voltage for the transceiver is 13.8V. If the power source is 24V, please use a power converter
(24V converted to 13.8V), or the transceiver won’t work.
■
Never directly connect to 220V AC as this will ruin the transceiver. If an abnormal odor or smoke is detected coming from the transceiver, turn off the power immediately.
■
Do not transmit before connecting the antenna. This will ruin the transceiver.
■
After extended use, the heating panel will become hot, which is normal.
Copyright © 2015 RCA Communications Systems
2
FOREWORD
MRM400
TM
VHF Marine Two-Way Radio Instruction Manual
Thank you for purchasing our MRM400 Marine
2-Way Radio.
■ Favorite channel function
■ WaterClean water draining function
IMPORTANT
The MRM400 VHF Marine Two-Way Radio is a powerful marine radio that is designed to IMO
(International Maritime Organization) standards.
The radio uses state-of-the-art technology and with proper care, should provide you with years of trouble-free operation.
READ ALL INSTRUCTIONS carefully and completely before using the transceiver.
SAVE THIS INSTRUCTION MANUAL - This instruction manual contains important operating instructions you will want to refer to at a later date.
FEATURES
IN CASE OF EMERGENCY
■ Advanced receiver performance
■ Easy-to-hear speaker
■ Built-in DSC (Digital Select Calling) can be connected with a GPS (sold separately)
■ Rugged waterproof construction
If your vessel requires emergency assistance, contact other vessels and the Coast Guard by sending a distress call on Channel 16.
Copyright © 2015 RCA Communications Systems
MRM400
TM
VHF Marine Two-Way Radio Instruction Manual
DISTRESS CALL PROCEDURE
USING CHANNEL 16
[DISTRESS] for 3 seconds until you hear 3 short beeps change to one long beep.
1. “MAYDAY MAYDAY MAYDAY.”
2. “THIS IS ...............” (name of vessel)
3. Your call sign or other indication of the vessel (AND 9-digit DSC ID if you have one).
4. “LOCATED AT ...............” (your position)
5. The nature of the distress and assistance required.
6. Any other information which might facilitate a rescue.
2. Wait for an acknowledgment on Channel 70 from a coast station.
• After the acknowledgment is received, Channel
16 is automatically selected.
3. Hold down [PTT], then transmit the appropriate information as listed above.
PRECAUTIONS
Or, transmit your distress call using Digital
Selective Calling on Channel 70.
■ WARNING! NEVER connect the transceiver to an AC outlet. This may pose a fire hazard or result in an electric shock.
DISTRESS CALL PROCEDURE
USING DIGITAL SELECTIVE
CALLING (DSC ) CHANNEL 70
■ WARNING! NEVER connect the transceiver to a power source of more than 16 V DC or use reverse polarity. This will could cause a fire the transceiver.
1. While lifting up the key cover, hold down
Copyright © 2015 RCA Communications Systems
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MRM400
TM
VHF Marine Two-Way Radio Instruction Manual
WARNING! NEVER cut the DC power cable between the DC plug at the back of the transceiver and fuse holder. If an incorrect connection is made after cutting, the transceiver may be damaged.
Place the transceiver in a secure place to avoid inadvertent use by children.
CAUTION: NEVER place the transceiver where normal operation of the vessel may be hindered or where it could cause bodily injury.
BE CAREFUL! The transceiver rear panel will become hot when operating continuously for long periods of time.
KEEP the transceiver and microphone at least 3.3 feet (1 meter) away from your vessel’s magnetic navigation compass.
DO NOT use or place the transceiver in areas with tem peratures below -4°F (-20°C) or above
140°F (+60°C), or in areas subject to direct sunlight, such as the dashboard.
DO NOT use harsh solvents such as benzine or alcohol to clean the transceiver, as they will damage the transceiver’s surfaces. If the transceiver becomes dusty or dirty, wipe it clean with a soft, dry cloth.
RCA requires the radio operator to meet the FCC
Requirements for Radio Frequency Exposure. An omnidirectional antenna with gain not greater than 9 dBi must be mounted a minimum of 16
1/2 feet (5 meters), measured from the lowest point of the antenna, vertically above the main deck and all possible personnel. This is the minimum safe separation distance estimated to meet all RF exposure compliance requirements.
The 16 feet (5 meter) distance is based on the
FCC Safe Maximum Permissible Exposure (MPE) distance of 10 feet (3 meters) added to the height of an adult, 6 feet (2 meters), is appropriate for all vessels.
Copyright © 2015 RCA Communications Systems
MRM400
TM
VHF Marine Two-Way Radio Instruction Manual
For watercraft without suitable structures, the antenna must be mounted so as to maintain a minimum of 3 feet (1 meter) vertically between the antenna, (measured from the lowest point of the antenna), to the heads of all persons AND all persons must stay outside of the 10 foot (3 meter) MPE radius.
PERMISSIBLE EXPOSURE (MPE) LIMIT.
IT IS THE RESPONSIBILITY OF THE RADIO
OPERATOR TO ENSURE THAT THE MAXIMUM
PERMISSIBLE EXPOSURE LIMITS ARE
OBSERVED AT ALL TIMES DURING RADIO
TRANSMISSION. THE RADIO OPERATOR IS
TO ENSURE THAT NO BYSTANDERS COME
WITHIN THE RADIUS OF THE MAXIMUM
PERMISSIBLE EXPOSURE LIMITS.
Do not transmit with radio and antenna when persons are within the MPE radius of the antenna, unless such persons (such as driver or radio operator) are shielded from antenna field by a grounded metallic barrier. The MPE Radius is the minimum distance from the antenna axis that person should maintain in order to avoid
RF exposure higher than the allowable MPE level set by FCC.
Determining MPE Radius
THE MAXIMUM PERMISSIBLE EXPOSURE
(MPE) RADIUS HAS BEEN ESTIMATED TO
BE A RADIUS OF ABOUT 10 FEET (3M) PER
OET BULLETIN 65 OF THE FCC.
FAILURE TO OBSERVE THESE LIMITS MAY
ALLOW THOSE WITHIN THE MPE RADIUS TO
EXPERIENCE RF RADIATION ABSORPTION
WHICH EXCEEDS THE FCC MAXIMUM
THIS ESTIMATE IS MADE ASSUMING THE
MAXIMUM POWER OF THE RADIO AND
ANTENNAS WITH A MAXIMUM GAIN OF
9dBi ARE USED FOR A SHIP MOUNTED
SYSTEM.
5
Copyright © 2015 RCA Communications Systems
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MRM400
TM
VHF Marine Two-Way Radio Instruction Manual
CONTENTS
PREPARATION
Supplied Accessories.....................................8
Transceiver Mounting ................................... 8
Antenna Connection ................................... 10
Connections .............................................. 10
Dimensions ................................................ 12
PANEL DESCRIPTION
Front Panel ................................................12
Microphone ...............................................14
Function Display.......................................... 15
BASIC OPERATION
Power ON / OFF ...........................................17
Receiving and Transmitting .........................17
Channel Group Selection ...........................17
Channel Selection ......................................19
Call Channel Programming .........................20
Channel Comments .................................... 21
Microphone Lock Function ......................... 22
Display Backlighting .................................. 23
WaterClean Water Draining Function ........ 23
SCAN OPERATION
Scan Types .................................................23
Setting TAG Channels ................................ 24
DUALWATCH / TRI-WATCH
Description.........................................26
Operation .................................................. 26
DSC OPERATION
MMSI Code Programming ........................ 27
MMSI Code Check ..................................... 27
DCS Address ID......................................... 28
Distress Call .............................................. 30
Copyright © 2015 RCA Communications Systems
MRM400
TM
VHF Marine Two-Way Radio Instruction Manual
CONTENTS
[continued]
Individual Call ............................................ 32
Group Call ................................................36
All Ships Call .............................................38
Geographical Area Call ..............................40
Position Indication Call ............................... 40
SET MODE
Set Mode Programming ........................... 45
Set Mode Items ......................................... 47
CHANNEL LIST ........................................... 49
SPECIFICATIONS ......................................... 50
TROUBLESHOOTING ................................... 52
WARRANTY STATEMENT ........................... 54
RF EXPOSURE ............................................. 57
Copyright © 2015 RCA Communications Systems
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MRM400
TM
VHF Marine Two-Way Radio Instruction Manual
PREPARATION
SUPPLIED ACCESSORIES
The following accessories are supplied:
TRANSCEIVER MOUNTING WITH
SUPPLIED MOUNTING BRACKET
■ The universal mounting bracket supplied with your transceiver allows overhead or dashboard mounting.
DC power cable
Items
Spare fuse
Mounting bracket
Qty.
1
1
1
1. Fix the mounting bracket to shelf or dashboard with the supplied screws and lock washers. Mount the transceiver to the mounting bracket with the knob bolts and washers.
Screws/lock washers
Microphone hanger
Instruction manual
Knob Bolts and flat washers
2
1
1
2
2. Mount the transceiver so the face of the unit can easily be seen when in use. Place the flat washers on the knob bolts and tighten the knob bolts so that the transceiver is securely mounted.
Screws for Microphone Hanger 2
Copyright © 2015 RCA Communications Systems
MRM400
TM
VHF Marine Two-Way Radio Instruction Manual
■ You may use a spongy cushion between the transceiver and mounting bracket to reduce vibration.
3. Attach the clamps on either side of the transceiver with 2 supplied bolts.
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■ Embedded mounting
1. Cut a hole into the instrument panel or wherever you plan to mount the transceiver.
2. Slide the transceiver through the holes as shown below.
4. Tighten the end bolts on the clamps so that the clamps press firmly against the inside of the instrument control panel.
Bolt
Copyright © 2015 RCA Communications Systems
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MRM400
TM
VHF Marine Two-Way Radio Instruction Manual
ANTENNA CONNECTION
CONNECTIONS
Be sure to connect an antenna before transmitting. Select the antenna with the relative frequency and connect to the ANT antenna connector. Use the antenna and low loss concentric with the same natural impedance 50
Ω. (See page 4 for more information.)
After connecting the DC power cable, GPS receiver lead and external speaker lead, cover the connector and leads with an adhesive tape as below, to prevent water entering the transceiver.
■ Transmitting without an antenna may damage the transceiver.
Antenna Connector
Feeder Connector
■ External speaker lead
Wiring details for an external speaker below.
To The Antenna Blue Speaker
Gray
Copyright © 2015 RCA Communications Systems
MRM400
TM
VHF Marine Two-Way Radio Instruction Manual
■ GPS receiver lead
Connect to a GPS receiver (sold separately) for position indication.
An NMEA0183 ver.2.0 or 3.01 (sentence formatters RMC, GGA, GNS, GLL) compatible GPS receiver is required.
■ Fuse replacement
One fuse is installed in the supplied DC power cable. If the transceiver stops working, it is a good idea to check for a blown fuse. If the fuse is blown, replace the fuse with a new
DC15A/32V fuse.
* Be sure to power off the unit before replacing the fuse.
Yellow
Green
■ DC power connector
Connect the supplied DC power cable to an external 13.8V DC power source. Do not connect to 24V storage battery.
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Copyright © 2015 RCA Communications Systems
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DIMENSIONS
MRM400
TM
VHF Marine Two-Way Radio Instruction Manual
PANEL DESCRIPTION
FRONT PANEL
1
Function Display
Display
8 7
2
3
4 5 6
1. Channel 16 / Call Channel Key [16]
- Push to select Channel 16 (emergency channel).
- Push and hold for 1 sec. to select call channel.
“CALL” appears when the call channel is selected.
Copyright © 2015 RCA Communications Systems
- While pushing and holding [CH/WX], push
[16] to enter channel comments programming mode.
MRM400
TM
VHF Marine Two-Way Radio Instruction Manual
3. Digital Selective Calling (DSC)/Position Key -
See page 27 for details.
- Push to enter DSC menu.
- Push to move the cursor backward.
- While turning power ON, push [16] to enter
Set Mode.
- Push and hold for 1 sec. to show the current position from a GPS receiver.
4. Squelch Control [SQL]
2. Channel / Weather Channel Key
Rotate to set the squelch threshold level.
- Select and toggle between the regular channel and weather channel when pushed momentarily.
5. Power / Volume Control [VOL]
- Push and hold for 1 sec. to start Dualwatch or Tri-watch.
Rotate to turn the transceiver power ON and
OFF and adjusts the audio level.
6. Distress Key [DISTRESS]
- Push and hold to stop Dualwatch or Tri-watch when either is activated.
Push and hold for 5 sec. to transmit a Distress
Signal.
- Push to move the cursor forward.
7. Scan / Tag Key [SCAN]
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Copyright © 2015 RCA Communications Systems
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MRM400
TM
VHF Marine Two-Way Radio Instruction Manual
- Push to start or stop the normal or priority scan.
- Select one of three channel groups in sequence when both keys are pushed.
- Push and hold for 1 sec. to set or clear the displayed channel as a TAG (scanned) channel.
The favorite channels are set by the TAG channel setting.
- Push and hold [HI/LO] and [SCAN] to clear all
TAG channels in the selected channel group.
Repeat above procedure to set all TAG channels.
8. [
▲
][
▼] / U/I/C (U.S.A/International/Canada)]
- Select the proper operating channels, Set
Mode settings, etc.
- While pushing and holding [SCAN], push [ key backlight.
▲
] or [
▼] to adjust the brightness of the LCD and
- While turning power ON, push and hold both keys to activate the WaterClean function.
MICROPHONE
Microphone
1. Push To Talk
Push and hold to transmit; release to receive.
2. Channel UP / DOWN Keys[
▲
]/[
▼
]
Copyright © 2015 RCA Communications Systems
MRM400
TM
VHF Marine Two-Way Radio Instruction Manual
- Push either key to change the operating channel, Set Mode settings, etc.
FUNCTION DISPLAY
- When the favorite channel function is turned
ON, push either key to select the favorite channels in the selected channel group in sequence.
3. Transmit Power Key [HI/LO]
- Push to toggle the power between high and low.
Some channels can transmit in low power only.
- While pushing and holding [HI/
LO], turn power ON to toggle the microphone lock function ON and OFF.
1. Channel Number Readout
- Indicates the selected operating channel number. (Refer to channel list)
- In Set Mode, indicate the selected condition.
2. Channel Group Indicator
Indicate whether a U.S.A. “U”, International
“I” or Canadian “C” channel is in use.
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Copyright © 2015 RCA Communications Systems
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MRM400
TM
VHF Marine Two-Way Radio Instruction Manual
3. Channel Comment Indicator - Disappears when no GPS receiver is connected.
- Channel comment appears if programmed.
6. Weather Channel Indicator
- “LOW BATTERY” scrolls when the battery voltage drops below 10.8V DC.
- “WX” appears when a weather channel is selected.
- “SC” blinks during priority scan. “SCAN” blinks during normal scan.
- “DW” blinks during Dualwatch. “TW” blinks during Tri-watch.
- “WX ALT” appears when the weather alert function is in use; blinks when an alert tone is received.
7. Duplex Indicator
4. DSC Indicators (Distress calls)
Appears when a duplex channel is selected.
- “DSC” appears when a DSC call is received.
8. Low Power Indicator
- “POS REPLY” appears when a position reply call or position report reply call is received.
Appears when low power is selected.
5. GPS Indicator
- Appears while valid position data is received.
- Blinks when invalid position data is received.
9. Call Channel Indicator
Appears when the call channel is selected.
Copyright © 2015 RCA Communications Systems
MRM400
TM
VHF Marine Two-Way Radio Instruction Manual
10. TAG Channel Indicator
RECEIVING AND TRANSMITTING
Appears when a TAG channel is selected.
■ Transmitting
11. Busy Indicator
1. Push [HI/LO] on the microphone to select the output power if necessary.
Appears when receiving a signal or when the squelch opens.
- ”LOW” appears when low power is selected.
12. Transmit Indicator
Appears while transmitting.
- Choose low power for short range communication; choose high power for longer distance communication.
BASIC OPERATION
POWER ON / OFF
- Some channels are for low power only.
2. Push and hold Push to talk (PTT) to transmit, then speak into the microphone.
- “TX” appears.
1. Rotate [VOL] clockwise to turn power on.
2. Rotate [VOL] counter-clockwise to turn power off.
- Channel 70 cannot be used for anything other than DSC (distress alerts).
3. Release [PTT] to receive.
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Copyright © 2015 RCA Communications Systems
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Note:
MRM400
TM
VHF Marine Two-Way Radio Instruction Manual
CHANNEL GROUP SELECTION
- Do not transmit before connecting the antenna as this can ruin the transceiver.
- The TOT (Time-out Timer) function inhibits continuous transmission over a preset time period after the transmission starts.
The transceiver is pre-programmed with 59
U.S.A. and international channels and 63
Canadian channels. These channel groups may be specified for the operating area.
1. Push [CH/WX] to select a regular channel.
■ Receiving
- If a weather channel appears, push [CH/WX] again.
1. Set the audio and squelch levels.
2. Rotate [SQL] fully counterclockwise in advance.
2. Push [U/I/C] (both [
▲
] and [
▼] on the transceiver to change the channel group, if necessary.
3. Rotate [VOL] to adjust the audio output level.
- U.S.A., International and Canadian channel groups can be selected in sequence.
4. Rotate [SQL] clockwise until the noise disappears.
- “When receiving a signal, [ ] appears and audio is emitted from the speaker.
3. Push [
▲
] or [
▼] to select a channel.
- [
D] appears for duplex channels.
Copyright © 2015 RCA Communications Systems
MRM400
TM
VHF Marine Two-Way Radio Instruction Manual before selecting Channel 16, or push [
[
▼] to select operating channel.
▲
] or
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CHANNEL SELECTION
■ Channel 16
Channel 16 is the distress and safety channel.
It is used for establishing initial contact with an aid station and for emergency communication.
Channel 16 is monitored during both Dualwatch and Tri-watch. If you are not actively using your radio, you must monitor Channel 16.
1. Push [16] momentarily to select Channel 16.
2. Push [CH/WX] to return to the condition
Copyright © 2015 RCA Communications Systems
Scrolls
Convenient:
When the favorite channel function is turned
ON, use the [
▲
]/[
▼] keys on the microphone to select the favorite channels in the selected channel group.
- The favorite channels are set by the TAG channel setting. (Pg. 24)
■ Channel 9 (Call channel)
Each regular channel group has a separate leisure-use call channel (Channel 9, default).
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MRM400
TM
VHF Marine Two-Way Radio Instruction Manual
The call channel is monitored during Tri-watch.
1. Push [CH/WX] once or twice to select a weather channel.
1. Push and hold [16] for 1 sec. to select the call channel of the selected channel group.
“CALL” and the call channel number appears.
- “WX” appears when a weather channel is selected.
2. Push [CH/WX] to return to your previous call channel, or push [ channel.
▲
] or [
▼] to select a
- “WX ALT” appears when the weather alert function is in use.
2. Push [
▲] or [▼] to select a channel.
Scrolls
■ Weather channels
The transceiver has 10 pre-programmed weather channels. The transceiver can automatically detect a weather alert tone on the selected weather channel while receiving the channel or during scanning.
Weather Channel Alert is OFF.
Weather Channel Alert is ON.
CALL CHANNEL PROGRAMMING
Call channel is used to select Channel 9
(default), however, you can program the call channel with your preferred channel in each channel group for quick recall.
Copyright © 2015 RCA Communications Systems
MRM400
TM
VHF Marine Two-Way Radio Instruction Manual
1. Push [U/I/C] (both [
▲] and [▼] on the transceiver several times to select the desired channel group (U.S.A., International or
Canada) to be programmed.
5. Push [16] to program the displayed channel as the call channel.
- Push [CH/WX] to cancel.
2. Push and hold [16] for 1 sec. to select the call channel of the selected channel group.
- “CALL” and call channel number appear.
3. Push and hold [16] again for 3 seconds (until you hear long beep changes to 2 short beeps) to enter call channel programming condition.
- Channel number starts blinking.
CHANNEL COMMENTS
Channels stored in memory can be labeled with a unique alphanumeric ID of up to 10 characters each. Channel ID’s with more than
6 characters automatically scroll after the channel is selected.
Capital letters, lower case letters (except f, j, k, p, s, v, x, z), 0 to 9, some symbols (=*+ - ./) and space can be used.
4. Push [
▲] or [▼] to select the desired channel.
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MRM400
TM
VHF Marine Two-Way Radio Instruction Manual
1. Select the desired channel.
5. Push [DSC] to input and set the comment.
- Cancel Dualwatch, Tri-watch or scan in advance.
2. While pushing [CH/WX], push [16] to edit the channel comment.
- Push [SCAN] to cancel.
- The cursor and the character stop blinking.
- A cursor and the first character start blinking alternately.
MICROPHONE LOCK FUNCTION
[
The microphone lock function electrically locks
▲
] and [
▼
] keys on the supplied microphone.
This prevents accidental channel changes and function access.
- While pushing and holding [HI/LO] on the microphone, turn power ON to toggle the microphone lock function ON and OFF.
3. Pushing [ character.
▲
] or [
▼] to select the desired
- Push [16] or [CH/WX] to move the cursor forward or backward, respectively.
4. Repeat step [3] to input all characters.
Copyright © 2015 RCA Communications Systems
MRM400
TM
VHF Marine Two-Way Radio Instruction Manual
DISPLAY BACKLIGHTING
2. A low beep tone sounds while [
▲
] or [
▼] keys are held to drain water, regardless of
[VOL] control setting.
The function display and keys can be backlit for better visibility under low light conditions.
While pushing and holding [SCAN], push [ key backlight.
▲
] or [
▼] to adjust the brightness of the LCD and
- The transceiver never accepts a key operation while the WaterClean function is activated.
- The backlight is selectable in 3 levels and OFF.
WATERCLEAN WATER DRAINING
WaterClean helps drain water away from the speaker housing (water that might otherwise muffle the sound coming from the speaker). The transceiver emits a vibrating noise when this function is being used.
1. While pushing and holding [
▲
] and [
▼], turn power ON.
- “WATERCLEAN” appears.
SCAN OPERATION
SCAN TYPES
The transceiver has priority scan and normal scan. (Refer to Set Mode programming).
When the weather alert function is turned
ON, the previously selected (last used) weather channel is also checked while scanning.
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MRM400
TM
VHF Marine Two-Way Radio Instruction Manual
Set the TAG channels (scanned channels) to create a list of channels to scan. Clear the TAG channels to eliminate unwanted TAG channels.
Normal scan:
Normal scan searches through all TAG channels in sequence. Channel 16 is not checked unless
Channel 16 is set as a TAG channel.
Priority scan:
For more efficient scanning, add desired channels as TAG channels or clear the TAG to eliminate unwanted channels.
Channels that are not tagged will be skipped during scanning.
■ Setting / clearing a single tagged channel
1. Push [U/I/C] (both [
▲
] and [
▼]) several times to select the desired channel group.
in sequence while monitoring Channel 16.
Copyright © 2015 RCA Communications Systems
2. Select the desired channel to be set as a TAG channel.
MRM400
TM
VHF Marine Two-Way Radio Instruction Manual
■ Starting a scan
3. Push and hold [SCAN] for 1 second to set the displayed channel as a TAG channel.
Set “Scan Resume Timer” in advance using Set
Mode.
1. Push [SCAN] to start Priority or Normal scan.
- ” ”appears in the display.
4. To cancel the TAG channel setting, repeat step
[3].
- “SC” blinks during Priority Scan; “SCAN” blinks during Normal Scan.
- Channel 16 is monitored during Priority Scan.
- ” ”disappears.
■ Setting / clearing all tagged channels
- Push [
▲
] or [
▼] to change the scanning direction.
1. While pushing and holding [HI/LO] on the microphone, push [SCAN] for 3 seconds to clear all TAG channels in the selected channel group.
- A beep tone sounds and “SC 16” blinks in the channel comment indicator when a signal is received on Channel 16 during Priority Scan.
2. To stop the scan, push [SCAN]
2. Repeat above procedure to set all TAG channels.
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MRM400
TM
VHF Marine Two-Way Radio Instruction Manual
DUALWATCH /
TRI - WATCH
OPERATION
1. Select Dualwatch or Tri-watch in Set Mode.
2. Select the desired channel.
DESCRIPTION
The transceiver has a Dualwatch and Tri-watch feature.
3. Push and hold [CH/WX] for 1 second to start
Dualwatch or Tri-watch.
Dualwatch monitors Channel 16 while you are receiving on another channel.
- “DW” blinks during Dualwatch; “TW” blinks during Tri-watch.
- A beep tone sounds when a signal is received on Channel 16.
Tri-watch monitors Channel 16 and another selected call channel while receiving another channel.
Call Channel
4. To cancel Dualwatch or Tri-watch, push [CH/
WX].
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DIGITAL SELECTIVE
CALLING (DSC)
OPERATION
MRM400
TM
VHF Marine Two-Way Radio Instruction Manual
[
4. Edit the specified MMSI code by pushing
▲
] or [
▼].
- Push [16] or [CH/WX] to move the cursor forward or backward, respectively.
MMSI CODE PROGRAMMING
5. Input your 9-digit code, then push [DSC] to set the code.
Your 9-digit MMSI (Maritime Mobile Service
Identity) is a number that identifies your boat.
It can be programmed at Power ON.
- Returns to normal operation.
Note:
1. Rotate [VOL] to turn power OFF.
2. While pushing and holding [DSC], turn power ON to enter MMSI code programming function.
- This code programming can be performed only twice. After the code has been programmed, it can be changed only by your dealer or distributor.
3. After the display appears, release [DSC], and cursor starts blinking.
MMSI CODE CHECK
The 9-digit MMSI (DSC self ID) code can be checked.
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Copyright © 2015 RCA Communications Systems
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MRM400
TM
VHF Marine Two-Way Radio Instruction Manual
1. Push [DSC] to enter the DSC menu.
DSC ADDRESS ID
2. Push [
▲
] or [
▼] to select “MMSI” and push
[DSC].
A total of 30 DSC address ID’s (9-digit) can be programmed and named with up to 5 characters.
■ Programming Address ID
3. Check your 9-digit MMSI (DSC self ID) code.
1. Push [DSC] to enter the DSC menu.
2. Push [
▲
] or [
▼] to select “ADDRESS”, and push [DSC].
- The MMSI code is displayed and scrolls at the channel comment indicator.
MMSI Scrolls
4. Push [DSC] to return to normal operation.
Scrolls
3. Push [
▲
] or [
▼] to select “ADD”, and push
[DSC].
Copyright © 2015 RCA Communications Systems
MRM400
TM
VHF Marine Two-Way Radio Instruction Manual
4. Push [
▲
] or [
▼] to input 9-digit of the appropriate Address ID.
- Push [SCAN] to cancel and exit the condition.
- Push [16] or [CH/WX] to move the cursor forward or backward, respectively.
6. Push [DSC] to program and exit the DSC menu.
■ Deleting Address ID
- Push [SCAN] to cancel and exit the condition.
1. Push [DSC] to enter the DSC menu.
Note: 1st digit “0” is fixed for a group ID.
When you input 1st digit “0” and other 8 digits, the ID is automatically registered as a group ID.
2. Push [
▲
] or [
▼] to select “ADDRESS” and push [DSC].
29
5. After inputting 9-digit ID, push [DSC] to input 5 characters ID name using [
▲
] or [
▼].
- Push [16] or [CH/WX] to move the cursor forward or backward, respectively.
Scrolls
3. Push [
▲
] or [
▼] to select “DEL”, then push
[DSC].
- When no Address ID is programmed, “NO
ID” is displayed.
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MRM400
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VHF Marine Two-Way Radio Instruction Manual or a person is not in an emergency. A Distress call should only be used when immediate help is needed.
■ Transmitting a Distress Call
4. Push [
▲
] or [
▼] to select the desired ID name for deleting and push [DSC], “READY” appears.
1. While opening the key cover, push [DISTRESS] for 5 seconds to transmit the Distress call.
- Emergency channel (Channel 70) is automatically selected and the Distress call is transmitted.
DISTRESS CALL
A Distress call should be transmitted if, in the opinion of the master, the ship or a person is in distress and requires immediate assistance.
Note: Never use the Distress call when your ship
2. After transmitting the call, the transceiver waits for an acknowledgment call on Channel
70.
- The Distress call is automatically transmitted about every 4 minutes.
Copyright © 2015 RCA Communications Systems
MRM400
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VHF Marine Two-Way Radio Instruction Manual
- “DSC REPEAT” scrolls at the channel comment indicator.
- Position data: GPS position data held until receiving an ‘acknowledgement’.
31
■ Receiving a Distress Call
While monitoring Channel 70 and a Distress call is received:
Scrolls
3. After receiving the acknowledgment, reply using the microphone.
- “RCV DISTRESS ACK” scrolls at the channel comment indicator.
4. Push and hold [DISTRESS] for 5 sec. to transmit a new Distress call, if desired.
5. Push any key except [DISTRESS] to cancel
‘Call Repeat’ mode.
1. The emergency alarm sounds.
- Push any key to stop the alarm.
2. “DSC” appears and “RCV DISTRESS” scrolls at the channel comment indicator, then Channel
16 is automatically selected.
3. Continue monitoring Channel 16 as a coast station may require assistance.
Note: A distress alert contains an undesignated distress signal:
Scrolls
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VHF Marine Two-Way Radio Instruction Manual
■ Receiving a Distress acknowledgement
- Push any key to stop the alarm.
While monitoring Channel 70 and a Distress acknowledgement to other ship is received:
1. The emergency alarm sounds.
2. “DSC” appears and “RCV RELAY” scrolls at the channel comment indicator, then Channel
16 is automatically selected.
- Push any key to stop the alarm.
2. “DSC” appears and “RCV DISTRESS ACK” scrolls at the channel comment indicator, then
Channel 16 is automatically selected.
INDIVIDUAL CALL
Scrolls
The Individual call function allows you to transmit a DSC signal to a specific ship only.
Scrolls
■ Receiving a Distress Relay call
While monitoring Channel 70 and a Distress
Relay acknowledgement is received:
1. The emergency alarm sounds.
- Transmitting Individual call
1. Push [DSC] to enter the DSC menu.
- “INDIVIDUAL” scrolls at the channel comment indicator.
Copyright © 2015 RCA Communications Systems
MRM400
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VHF Marine Two-Way Radio Instruction Manual
- Channel 70 is selected and “READY” appears after pushing [DSC].
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Scrolls
2. Push [DSC] to select the desired preprogrammed individual address using [
[
▼], then push [DSC].
▲
] or
- The ID code for the Individual call must be set in advance.
4. Push [DSC] to transmit the Individual call.
- If Channel 70 is busy, the transceiver stands by until the channel becomes clear.
3. Push [
▲
] or [
▼] to select a desired intership channel, then push [DSC].
- Intership channels are already preset into the transceiver in recommended order.
5. After transmitting the Individual call, standby on Channel 70 until an acknowledgement is received.
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VHF Marine Two-Way Radio Instruction Manual
- “WAIT ACK” scrolls at the channel comment indicator.
7. Push and hold [PTT] to communicate your message to the responding ship when ‘Able to comply’ is received.
■ Transmitting Individual Acknowledgement
Scrolls
6. When the acknowledgement ‘Able to comply’ is received, the specified channel (in step
[3]) is selected automatically with beeps.
Or, when the acknowledgement ‘Unable to comply’ is received, the display returns to the operated channel (before entering the DSC menu) with beeps.
- “RCV ABLE ACK” OR “RCV UNABLE ACK” scrolls at the channel comment indicator.
When receiving an individual call, you can transmit an acknowledgement (‘Able to comply’ or ‘Unable to comply’) by using the on-screen prompts (refer to “Receiving an Individual Call”). You can also send an acknowledgement through the menu system as follows.
1. Push [DSC] to enter the DSC menu.
2. Push [
▲
] or [
▼] to select “INDV ACK” and push [DSC].
- “INDV ACK” item appears after an Individual call is received.
- “INDV ACK” item disappears if another call is
Scrolls
Copyright © 2015 RCA Communications Systems
MRM400
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VHF Marine Two-Way Radio Instruction Manual received after the Individual call.
- The Individual Acknowledgement can be transmitted to the last received Individual call only.
5. Push [DSC] to transmit the acknowledgement to the selected station.
35
Scrolls
3. Push [
▲
] or [
▼] to select the acknowledgement “ABLE” or “UNABL”.
6. After the Individual Acknowledgement has been transmitted, the display changes to the channel specified by the calling station automatically when “ABLE” is selected.
4. Push [DSC] to enter the standby condition for Individual acknowledgement call.
- “READY” appears at the channel comment indicator.
Copyright © 2015 RCA Communications Systems
Scrolls
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MRM400
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VHF Marine Two-Way Radio Instruction Manual
■ Receiving an Individual Call
GROUP CALL
While monitoring Channel 70 and an Individual
Call is received:
The Group Call function allows you to transmit a DSC signal to a specific group only.
1. The emergency alarm or beeps sound depending on the received category.
■ Transmitting A Group Call
1. Push [DSC] to enter the DSC menu.
2. “DSC” appears and “RCV INDIVIDUAL” scrolls at the channel comment indicator.
2. Push [
▲
] or [
▼] to select “GROUP”, and push [DSC].
3. Push any key to stop beeps.
4. Push [DSC] to reply to the call and select the channel specified by the calling station for voice communication. Push any other key to ignore the Individual call.
3. Push [
▲
] or [
▼] to select the desired preprogrammed group address, and push [DSC].
- The ID code for the Group call must be set in advance.
Scrolls
Copyright © 2015 RCA Communications Systems
MRM400
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VHF Marine Two-Way Radio Instruction Manual
4. Push [
▲
] or [
▼] to select the desired intership channel, and push [DSC].
- Channel 70 is selected and “READY” appears.
6. After the Group call has been transmitted, the display changes to the previously specified channel.
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5. Push [DSC] to transmit the Group call.
- If Channel 70 is busy, the transceiver stands by until the channel become clear.
Scrolls
7. Push and hold [PTT] to communicate your message to the responding ship.
■ Receiving A Group Call
While monitoring Channel 70 and a Group
Call is received:
1. The emergency alarm or beeps sound depending on the received category.
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2. “DSC” appears and “RCV GROUP” scrolls at the channel comment indicator.
channel’. When you want to announce a message to these ships, use the ‘All Ships Call” function.
3. Push any key to stop beep.
1. Push [DSC] to enter the DSC menu.
4. Push [DSC] to select the channel specified by the calling station for voice communication;
Push any other key to ignore the Group call.
2. Push [
▲
] or [
▼] to select “ALL SHIPS”.
Scrolls
ALL SHIPS CALL
The All Ships Call function allows you to transmit a DSC signal to all ships.
■ Transmitting All Ships Call
Large ships use Channel 70 as their ‘listening
Scrolls
3. Push [DSC] to enter the standby condition for All Ships Call.
- Channel 70 is selected and “READY” appears.
Copyright © 2015 RCA Communications Systems
- Low power is selected.
MRM400
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VHF Marine Two-Way Radio Instruction Manual
4. Push [DSC] to transmit the All Ships Call.
1. The emergency alarm sounds when the category is “Distress” or “Urgency”. 2 beeps sound for other categories.
5. After the All Ships Call has been transmitted, the display changes to Channel
16 automatically.
2. “DSC” appears and “RCV ALL SHIPS” scrolls at the channel comment indicator.
3. Push any key to stop beep.
4. Push [DSC] to monitor channel 16 for an announcement from the calling vessel, push any other key to ignore the call.
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Scrolls
■ Receiving an All Ships Call
While monitoring Channel 70 and a All Ships
Call is received:
Copyright © 2015 RCA Communications Systems
Scrolls
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MRM400
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VHF Marine Two-Way Radio Instruction Manual
GEOGRAPHICAL AREA CALL the Geographical Area Call.
The Geographical Area Call function allows you to transmit a DSC signal to all ships in a geographical area.
■ Receiving a Geographical Area Call
While monitoring Channel 70 and a
Geographical Area Call (for the area you are in):
1. The emergency alarm or beeps sound depending on the received category.
2. “DSC” appears and “RCV GEOGRAPHICAL” scrolls at the Channel Comment Indicator.
Scrolls
POSITION INDICATION CALL
■ Positioning Instructions
When a GPS receiver is connected, the transceiver indicates the current position data in seconds of accuracy.
3. Push any key to stop the beep.
A NMEA0183 ver. 2.0 or 3.01 (sentence formatters RMC, GGA, GNS, GLL) compatible
GPS receiver is required.
4. Push [DSC] to change to the channel specified by the calling station for voice communication. Push any other key to ignore
Push and hold [DSC] for 1 second to display the current position.
Copyright © 2015 RCA Communications Systems
MRM400
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VHF Marine Two-Way Radio Instruction Manual
- ‘Latitude’ and ‘Longitude’ scroll in sequence at the channel comment indicator.
- “NO POSITION” scrolls when no GPS is connected.
- “GPS” blinks when the GPS data is invalid.
Scrolls
3. Push [
▲
] or [
▼] to select the desired preprogrammed individual address.
- The ID code for position request must be set in advance.
Scrolls
■ Transmitting Position Request Call
Transmit a Position Request Call when you want to know a specified ship’s current position.
1. Push [DSC] to enter the DSC menu.
2. Push [
▲
] or [
▼] to select “POS REQUEST”, then push [DSC].
4. Push [DSC] to enter the standby condition for Position Request Call.
- Channel 70 is selected and “READY” appears.
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Copyright © 2015 RCA Communications Systems
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5. Push [DSC] to transmit the Position Request
Call.
MRM400
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VHF Marine Two-Way Radio Instruction Manual
7. Push any key to exit the condition and return to the normal operation.
■ Transmitting Position Report call
Transmit a Position Report call when you want to announce your own position to a specific ship and to get an answer.
1. Push [DSC] to enter the DSC menu.
2. Push [
▲
] or [
▼] to select “POS REPORT”, and push [DSC].
6. After the Position Request Call has been transmitted, the following indication is displayed.
- “WAIT ACK” scrolls at the Channel Comment
Indicator.
Scrolls
Scrolls
3. Push [
▲
] or [
▼] to select the desired preprogrammed individual address.
- The ID code for a Position Report Call can be
Copyright © 2015 RCA Communications Systems
set in advance.
MRM400
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VHF Marine Two-Way Radio Instruction Manual
6. After the Position Report Call has been transmitted, stand by on Channel 70 until an acknowledgement is received.
- “WAIT ACK” scrolls at the Channel Comment
Indicator.
4. Push [DSC] to enter the standby condition for Position Report Call.
- Channel 70 is selected and “READY” appears.
5. Push [DSC] to transmit the Position Report
Call.
Scrolls
7. Push any key to exit the function and return to the normal operation.
■ Receiving a Position Request Call
While monitoring Channel 70 and a Position
Request Call is received:
1. “DSC” appears and “RCV POS REQUEST” scrolls at the Channel Comment Indicator.
2. Push any key to stop the beep.
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3. Push [DSC] to reply to the call. Push any other key to ignore the call.
in order of Latitude coordinates and then
Longitude coordinates.
Scrolls
■ Receiving a Position Report Call
While monitoring Channel 70 and a Position
Report call is received:
1. “DSC” appears and “RCV POS REPORT” scrolls at the Channel Comment Indicator.
2. Push any key to stop the beep.
3. Push [DSC] to reply to the call. Push any other key to ignore the call.
- The ‘Latitude’ and ‘Longitude’ from the called station is displayed and scrolled automatically
Copyright © 2015 RCA Communications Systems
Scrolls
■ Receiving a Position Reply Call
While monitoring Channel 70 and a Position
Reply Call is received:
1. “DSC” and “POS REPLY” appear in the display.
- The ‘Latitude’ and ‘Longitude’ from the called station is displayed and scrolled automatically in order of Latitude coordinates and then
Longitude coordinates.
2. Push any key to stop the beep.
MRM400
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VHF Marine Two-Way Radio Instruction Manual
Scrolls
■ Receiving a Position Report Reply Call
While monitoring Channel 70 and a Position
Report Reply call is received:
1. “DSC” and “POS REPLY” appear in the display.
- The ‘Latitude’ and ‘Longitude’ you have sent is displayed and scrolled automatically in order of Latitude coordinates and then Longitude coordinates.
2. Push any key to stop the beep.
SET MODE
SET MODE PROGRAMMING
Set Mode is used to change the conditions of the transceiver’s functions: Scan Type (Normal or Priority), Scan Resume Timer, Weather Alert,
Dual/Tri-watch, DSC Watch, Beep Tone, Auto
Acknowledgement and Favorite Channel function.
Set Mode operation
1. Turn power OFF.
2. While pushing [16], turn power ON to enter
Set Mode.
3. After the display appears, release [16].
- “SCAN” appears at the Channel Comment
Indicator.
Scrolls
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VHF Marine Two-Way Radio Instruction Manual
4. Push [16] to select the desired item, if necessary.
5. Push [
▲
] or [
▼] to select the desired condition of the item.
6. Turn power OFF, then ON again to exit Set Mode.
No.
Display Item
1
2
3
4
5
6
7
8
SCAN
TIMER
WX ALERT
DUAL
DSC WATCH
BEEP
AUTO ACK
FAVORITE CH
Scan type
Scan resume timer
Weather alert
Dual/Tri-watch
DSC watch
Beep tone
Auto acknowledgement
Favorite channel
Option
n- (normal scan)
/ p- (priority scan) of (OFF) / on (ON) of (OFF) / on (ON) d-(Dualwatch)
/ t- (Tri-watch) of (OFF) / on (ON) of (OFF) / on (ON) of (OFF) / on (ON) of (OFF) / on (ON)
Default
n- (normal scan) of (OFF) of (OFF) d-(Dualwatch) of (OFF) on (ON) of (OFF) on (ON)
Copyright © 2015 RCA Communications Systems
SET MODE ITEMS
■ Scan type
MRM400
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VHF Marine Two-Way Radio Instruction Manual
■ Weather alert
The transceiver has 2 scan types: Normal Scan and Priority Scan. Normal scan searches all
TAG channels in the selected channel group.
Priority scan searches all TAG channels in sequence while monitoring Channel 16.
■ Scan Resume Timer
The Scan Resume Timer can be selected as a pause (OFF) or timer scan (ON).
A NOAA broadcast station transmits a weather alert tone before important weather information. When the weather alert function is turned ON, the transceiver detects the alert, then the “WX ALT” indicator blinks until the transceiver is operated. The previously selected
(used) weather channel is checked any time while scanning.
- “WX ALT” appears instead of “WX” indication when the function is set ON.
When OFF is selected, the scan pauses until the signal disappears. When ON is selected, the scan pauses 5 seconds and resumes even if a signal has been received on any other channel than Channel 16.
■ Dual / Tri-watch
This item can be selected as Dualwatch or Triwatch.
■ DSC watch
DSC watch monitors Channel 70 while you are receiving another channel. If a distress signal
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Copyright © 2015 RCA Communications Systems
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MRM400
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VHF Marine Two-Way Radio Instruction Manual is received on Channel 70, the transceiver monitors Channel 16 and 70 alternately until the distress signal disappears. If a signal is received on another channel, DSC watch pauses until the signal disappears.
- This function may not be available for some channel groups depending on dealer setting.
When Position Request call or Position Report call is received, the transceiver automatically transmits Position Request Reply call or Position
Report Reply call, respectively.
- “AUTO ACK” scrolls in the Channel Comment
Indicator.
■ Favorite channel
- “DSC WATCH” scrolls at the channel comment indicator.
This item sets the Favorite channel function
ON or OFF.
■ Beep tone
The favorite channel is programmed by the
TAG channel setting.
You can select silent operation by turning beep tones OFF or you can have confirmation beeps sound at the push of a key by turning beep tones ON.
■ Automatic acknowledgement
When the Favorite channel function is turned
ON, the [
▲
] or [
▼] keys on the microphone select the favorite channels in the selected channel group in sequence when pushed.
This item sets the Automatic Acknowledgement function ON or OFF.
- “FAVORITE CH” scrolls in the Channel
Comment Indicator.
Copyright © 2015 RCA Communications Systems
CHANNEL LIST
Channel number
USA INT CAN
Frequency(MHz)
Transmit Receive
MRM400
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VHF Marine Two-Way Radio Instruction Manual
Channel number
USA INT CAN
Frequency(MHz)
Transmit
Receive
Channel number
USA INT CAN
Frequency(MHz)
Transmit Receive
Channel number
USA INT CAN
Frequency(MHz)
Transmit
Receive
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Copyright © 2015 RCA Communications Systems
Weather Channel
Frequency(MHz)
Transmit
Receive
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VHF Marine Two-Way Radio Instruction Manual
SPECIFICATIONS
Frequency coverage
General
TX: 156.025-157.425 MHz
RX: 156.050 -163.275 MHz
Mode
FM (16K0G3E)
DSC (16K0G2B)
Frequency stability ± 10ppm
Operating temperature range
-4°F (-20°C) ~ 140°F (+60°C)
Antenna impedance
50
Ω
Dimensions
(W×D×H)
6” (153mm) x 6” (152mm) x 2.6” (67mm)
Weight (main unit) 1.6 lbs (742g) w/microphone
Transmitter
Output power
Max. frequency deviation
Spurious emissions
25W / 1W
±5.0 kHz
≤-70dB (H)
≤-56dB (L)
Adjacent channel power ≥70dB
Audio harmonic distortion
Current drain
Input resistance
≤10%
≤5.5A (H)
≤1.5A (L)
2k
Ω
Copyright © 2015 RCA Communications Systems
MRM400
TM
VHF Marine Two-Way Radio Instruction Manual
SPECIFICATIONS [continued]
Receiver
Sensitivity
Squelch sensitivity
Adjacent channel selectivity
Spurious response rejection ratio
≤0.2uV
≤0.2uV
≥70dB
≥70dB
Intermodulation rejection ratio
Max. current
Audio output power
GPS signal version
Output impedance
≥70dB
≤1.5A
≥4.5W (10%)
NMEA0183-2.0
4
Ω
Copyright © 2015 RCA Communications Systems
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TROUBLESHOOTING
Issues described in the following table are common operational issues. These types of errors are generally due to improper connections, incorrect settings, or operator error due to incomplete programming. These problems are usually not caused by unit failure. Before suspecting radio failure, please refer to the relevant parts of this table and the solution instructions.
Question Possible Cause Solutions
Ref. page
Power did not respond.
Unable to connect with GPS.
Can not scan.
1. The power cable is not connected well.
2. The power cable fuse is blown.
3. The voltage exceeds
17V or below 9V.
1. Connection error.
2. Different external
GPS format.
No set mark channels (TAG).
1. Be sure the power cable is connected correctly: red (+); black (-).
2. Find the cause of blown fuse, then replace with a DC15A/32V fuse.
3. Be sure the adjust the power supply is 13.8V.
1. Be sure the check the connections are correct.
2. External GPS format should be NMEA0183-2.0.
Set the channel you want to scan to mark channels.
10
11
1
11
11
23-26
Copyright © 2015 RCA Communications Systems
MRM400
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VHF Marine Two-Way Radio Instruction Manual
TROUBLESHOOTING [continued]
Question
Radios on the same channel can not talk.
Possible Cause
Can not transmit.
High power can not be selected.
Channel set to weather channel or 70 channels.
Some channels can only transmit at low power.
1. The channel is different frequency.
No beep Beep off
Can not transmit a distress call.
MMSI code is not set.
No sound from the speaker.
1. Squelch level too high.
2. Volume level too low.
3. Speaker has been exposed to water.
Solutions
Exit the weather channel or 70 channels.
Choose another channel.
1. Select another channel with the same frequency.
2. Set the current channel to the same frequency.
Open the beep function in the settings mode.
Hold down the [DSC] key to boot into MMSI setting mode.
1. Rotate [SQL] knob to adjust the squelch level.
2. Rotate [VOL] knob to adjust the volume.
3. Remove water with WaterClean function.
Copyright © 2015 RCA Communications Systems
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20
17
18
49
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27
18
18
23
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VHF Marine Two-Way Radio Instruction Manual
WARRANTY STATEMENT
RCA Communications Systems warrants each new radio product it supplies to be free from defects in material and workmanship under normal use and service for the time period listed below, provided that the user has complied with the requirements stated herein.
The warranty period begins on the date of purchase from an Authorized RCA Communications
Systems Sales and Service Outlet. This warranty is offered to the original end user and is not assignable or transferable. RCA Communications Systems is not responsible for any ancillary equipment which is attached to or used in conjunction with RCA Communications Systems products.
RCA Communications Systems offers to the original end user a Two (2) Year Limited Warranty on the RCA MRM400
TM
Radio Handset.
During this period, if the product fails to function under normal use because of manufacturing defect(s) or workmanship, it should be returned to the Authorized RCA Communications Systems
Sales and Service Outlet from which it was purchased. The Sales and Service Outlet will repair the product to full operating specifications or replace the product with a new product of the same make and model. The user is responsible for all charges incurred in returning the product to the
Authorized RCA Communications Systems Sales and Service Outlet. RCA Communications Systems will be responsible for all charges in returning the product to the end user via standard ground shipping service.
RCA Communications Systems shall have no obligation to repair or replace the product, if there
Copyright © 2015 RCA Communications Systems
MRM400
TM
VHF Marine Two-Way Radio Instruction Manual is damage as a result of normal wear and tear or if the damage is caused in whole or in part by catastrophe, fault or negligence of the user, improper or unauthorized alterations or repairs to the product, incorrect wiring, use of the product in a manner for which it was not designed, or by causes external to the product. This warranty is void if the product serial number is altered, defaced or removed.
THE EXPRESS WARRANTIES CONTAINED HEREIN ARE IN LIEU OF ALL OTHER WARRANTIES, EITHER
EXPRESSED OR IMPLIED OR STATUTORY, INCLUDING, WITHOUT LIMITATION, ANY WARRANTY OF
MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
FOR ANY PRODUCT WHICH DOES NOT COMPLY WITH THE WARRANTY SPECIFIED, THE SOLE
REMEDY WILL BE REPAIR OR REPLACEMENT. IN NO EVENT WILL RCA COMMUNICATIONS SYSTEMS
BE LIABLE TO THE BUYER OR ITS CUSTOMERS FOR ANY DAMAGES, INCLUDING ANY SPECIAL,
INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES, OR THE LOSS OF PROFIT, REVENUE OR
DATA ARISING OUT OF THE USE OR THE INABILITY TO USE THE PRODUCT.
55
Copyright © 2015 RCA Communications Systems
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MRM400
TM
VHF Marine Two-Way Radio Instruction Manual
RCA Communications Systems endeavors to make this manual accurate and complete, but is not liable for any possible omission and printing mistakes.
All specifications and designs are subject to change without prior notice.
All the reproduction and translation of this manual without authorization is prohibited.
No part of this manual may be copied, reproduced, translated, stored in a retrieval system, distributed, or transmitted in any form or by any means, electronic or mechanical, for any purpose without the expressed, written permission from RCA Communications Systems.
The end-user of any two-way radio is solely responsible for obtaining any license or other authorizations required by the Federal Communications Commission (FCC). For further information visit www.fcc.gov or call 1-888-CALL-FCC (1-888-225-5322).
Copyright © 2015 RCA Communications Systems
MRM400
TM
VHF Marine Two-Way Radio Instruction Manual
NOTES:
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VHF Marine Two-Way Radio Instruction Manual
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___________________________________________________________________________________
___________________________________________________________________________________
For Sales, Warranty and Customer Support please contact:
Discount Two-Way Radio Corporation – North American Distributor
1430 240th Street
Harbor City, CA 90710
Phone: 310-224-5100 / Fax: 310-224-5101 www.discounttwo-wayradio.com
Copyright © 2015 RCA Communications Systems

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