Friendcom FC-302V Data Radio User Manual
Below you will find brief information for Data Radio FC-302V. This data radio is designed for both voice communication and data transportation. It comes with a sleek, compact design, wide range DC support, and a variety of features including 16 programmable channels, CTCSS/DCS, and a 4FSK modem. The 4FSK modem enables high-speed data transmission and provides maximum flexibility for user applications. The FC-302V is a versatile data radio suitable for a range of scenarios such as industrial telemetry, wireless remote control, and vehicle tracking.
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Shenzhen Friendcom Technology Development Co., Ltd.
FC-302V Data Radio
User Manual
Address: 6/F,17 Building, Guangqian Industrial Park, Longzhu Road, Xili Town, Nanshan
Shenzhen, China
Tel:
Fax:
+86-755-86026600 +86-755-23230518
+86-755-86026300
E-mail: [email protected]
Website: http://www.friendcom.cn
SHENZHEN FRIENDCOM TECHNOLOGY DEVELOPMENT CO.,LTD
Content
1
2
3
3.1
3.2
4FSK Modem ........................................................................................................................................... 7
4 Application Instruction...................................................................................................................................... 7
4.1
4.2
5
5.1
5.2
5.3
5.4
5.5
6
1 Product Description
Shenzhen Friendcom Technology Development Co., Ltd. voice communication. For the voice communication, it can support selected pre-emphasis, squelch and audio amplifier. The radio is PLL(Phase Lock Loop Synthesizer) /microprocessor controlled with 4FSK modem. The application of two-point modulation with good low-frequency response in the radio also makes it a competitive choice for 9600bps rate data application. Compact dimension and wide range DC support make it flexible to use.
Features:
• CE, FCC& AS/NZS 4295: 2004 certified
• Programmable 16 channels with Dip-Switch
• Configurable power save feature
• Optional external channel configuration
• CTCSS/DCS
• Fast start-up time: 5ms
• SQ programmable via PC
• Pocsag Modulation
• PC programmable & Software tune & Calibration
Applications:
• Industrial telemetry & wireless remote control
• Gas and oil flow monitoring
• Electricity, water and gas utilities
• Earthquake, weather, environmental protection and urban lighting control
• Vehicle tracking and asset tracking systems
• Water monitoring, waste water management and irrigation control
• Railway, police, army automation system
• Aerial defense and fire alarm system
• Wireless Paging system
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2 Technical Specifications
General Specification
Working Frequency 136MHz ~ 174MHz
Channel Spacing
Modulation Type
Number of Channels
Nominal Working Voltage
Extreme Working Voltage
6.25KHz/12.5KHz Programmable
4FSK,FM
16
12V DC
9.5 V ~ 16V DC
Storage Temperature -40 ℃~ +80 ℃
Operating Temperature
Current
Standby
-30 ℃~ +65 ℃
Transmit 5 watts RF Power < 1.5A
Consumption
< 100mA
Transmit 1 watt RF Power < 1A
TX to RX Attack Time
< 5ms
RX to TX attack time < 5ms
Frequency Error
Antenna Connector
< 2.5ppm
BNC 50
Ω
External interface DB15(optional male interface)
Transmitter Specification
RF Power
6.25KHz Channel Spacing 1W/2W Programmable
12.5KHz Channel Spacing 1W/2W/3W/4W/5W Programmable
Frequency
6.25KHz Channel Spacing < 1.25KHz
12.5KHz Channel Spacing < 2.5KHz
Deviation
Adjacent
Subsonic
6.25KHz Channel Spacing
0.5KHz
< -60dBc
Channel
Power
12.5KHz Channel Spacing
< -70dBc
Conducted Spurious Emission
< 1GHz, < -36dBm
> 1GHz, < -30dBm
Modulation
Sensitivity
TX SNR
Voice 8~15mV
Data 80~130mV
6.25KHz Channel Spacing > 30dB
12.5KHz Channel Spacing
> 40dB
Receiver Specification
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RX Sensitivity (12dB SINAD)
< -119dBm Extreme < -115dBm
ACS
> 70dB
Image Rejection
IF Rejection
> 70dB
> 70dB
> 70dB Spurious Rejection
Intermodulation Suppression > 65dB
< -57dBm Conducted Spurious Emission
Receiving Audio Distortion < 5%
RX SNR
6.25KHz Channel Spacing > 30dB
12.5KHz Channel Spacing
> 40dB
Audio Output Power 0.5W @ 8
Ωload
3 Interface
of
the Radio
DB15 is the interface for data transmission with 4FSK modem.
DB15 Interface
As shown in above picture, the pin definition of CON-14-FEMALE is related with internal devices
(Modem board or Bridge board). Refer to Table 1.
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CON-14-PIN1
CON-14-PIN2
CON-14-PIN3
CON-14-PIN4
CON-14-PIN5
CON-14-PIN6
CON-14-PIN7
CON-14-PIN12
CON-14-PIN14
Table 1
Internal bridge
TFSK
RXD(RADIO)
EXT_PTT
TXD(RADIO)
RFSK
TFSK
EXT_PTT
GND
NC
3.1
Pin Assignment
As to FC-30 2V with 4FSK modem, the pin assignment is shown in Table 2.
Table 2
Pin Name Pin No. Description
Internal modem
GND
RXD(MODEM)
EXT_PTT
TXD(MODEM)
CD_OUT
NC
NC
GND
+12V ( B+/9.6
~ 16V DC )
Remark
AUDIO_IN
(
MOD IN
)
1
Audio input. 3KHz LPF,
Modulation sensitivity is 100mV.
AUDIO_IN is effective only when PIN
AUDIO_OUT
(
AF OUT
)
2
PTT
B+
(9.6
~
16V DC)
PROG
(DATA OUT)
BUSY
MIC IN / RSSI
PROG
(DATA IN)
SPK /
POCSAG
3
4
5
6
7
8
9
250±50mV. This line has an internal pull-up resistor to +5V.
TX control, active low, only when PTT is active AUDIO_IN and MIC IN are effective. This line has an internal pullup to 5V.
Positive pole input from DC power, nominal +12V.
Programming data output, 5V TTL
Logical level output to indicate whether there is a carrier or not. Low lever = carrier, high level=no carrier. This line has a pull-up to +5V.
MIC IN: Microphone input.
RSSI: To detect the air signal strength.
Jumper selectable.
Can directly connect to electrets MIC, the DC voltage of this pin should lower than 3.5V, then MIC transmission can be activated.
Programming data input, 5V TTL
SPK: Audio output from the audio amplifier, @ 8Ω.
7(MIC) is vacant or with +5V high level.
POCSAG: To transmit POCSAG code.
3KHz LPF filter existed in audio channel.
Jumper selectable.
RXD
( MODEM )
TXD
(
MODEM
)
CD_OUT
(MODEM)
NC
GND
NC
10 through this pin. Default is RS232. TTL/5V when delivery.
11 this pin. Default is RS232. TTL/5V when delivery.
12
13
14 Ground
15
Logical level output to indicated whether a carrier or not. Low lever = carrier, high level=no carrier.
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3.2
4FSK Modem
4FSK high speed modem are applied to the FC-302V data radio to increase capability for data application. modem is to improve the efficiency for data transmission and provide maximum flexibility for user application.
Interface level
3.2.1 Modem specifications
Items
Power supply
Serial data rate (bps)
Symbol Frequency (KHz)
Air data rate (bps)
Serial port updating
Interaction with radio mainboard
AT command
FC-302-4FSK modem
4FSK
DC 12V
9600
2400
9600
Remark
Symbol frequency is 2400KHz when the data rate is 9600bps.
Y
Y
Program the radio’s parameters by modem via AT command
Y Refer to the Appendix
Y
Hardware jumper resistor, support
RS485/RS232/TTL, Factory default is
RS232.
4 Application Instruction
Functions of PC(Personal Computer) software, hereafter called “FC-302 QuickSet v0.1.12 ”, will be illustrated.
Main goal of this instruction is to save time for user by supporting exact usage of the software, at the same time, give a help to user who wants to utilize the radio for another applications. This programming software enables the various parameters of FC-302V to be read, modified, programmed and printed.
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4.1
Hardware Installation
To apply PC software to radio application, FC-302 QuickSet En v0.1.12, programming cable, programming kit and PC are needed. In this chapter, instruction for connection of the equipment will be illustrated.
4.1.1
System Requirements
Computer
Normal personal computer or faster (recommended)
Operating System
Microsoft Windows XP & Windows 7
Communication Port
One available communication port (COM1, 2, 3 or others)
Hardware Accessories
Programming cable(RS232 to USB)
Programming kit
4.1.2
Connecting to Data Radio
Connection between the PC and the radio for parameter setting
The programming kit is used for connection as shown below.
No. Descriptions
1 DB15 male connector for radio with DB15 female.
2 Power Supply (DC 12V)
3 DB15 female connector for radio with DB15 male.
4 DB9 female connector for RS-232 interface of computer.
The position of the jumper:
For radio’s parameter setting, user should put the jumper on the position shown as below.
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For data transmission test with 4FSK modem, the jumper’s position need to be changed shown as below.
4.2
Operation Instruction
Detailed instruction for channel and system configuration is described. Especially, in input channel data, data input method for Rx,Tx frequency, Rx,Tx option such as CTCSS, DCS, scan and bandwidth is explained specifically. In addition, system option such as selection of squelch type, data value setting for power saving mode, Tx time out time, scan option and modem speed is detailed.
4.2.1
Overall View
Pin 6 (BUSY) and Pin 8 (Switch) of DB15 connector work as TX end and RX end of simulated serial port for data transmission in the first 2 minutes after the radio power on. The CON port is with characteristics of
9600bps, 8N1, TTL. If no valid command is sent from PC, the port will be disabled from serial simulation function and return to normal BUSY and Switch function.
Initially, click on the shortcut of PC software and then the following window shows up.
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First of all , open the con port. The CON port is with characteristics of 9600bps, 8N1 and click “Open” as picture shows.
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If user puts mouse cursor on the each icon in tool bar for a second, message for function indication is displayed.
Power on the radio, after 5 seconds, click on the "Read", establish the communication with PC and radio. As the following picture:
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4.2.2
Input Channel Data
Shenzhen Friendcom Technology Development Co., Ltd.
In this option part, user can input channel selection from 1 to 16, Rx,Tx frequency, Rx,Tx tone option such as
CTCSS, DCS, power, switch and make SCAN list, and choose bandwidth, Narrow or Wide according to each channel.
Fig. 4 Feature Column
Double-click on the any window inside red-rectangle area to set Rx,Tx frequency, Rx, Tx option for each channel.
4.2.2.1
Power
150.
150.
150.
150.
1-5 output power can be programmable for each channel.
4.2.2.2
Bandwidth
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User can decide the channel spacing in this feature with optional 6.25KHz (Narrow) or 12.5KHz (Wide) channel spacing.
4.2.2.3
SQ level
Five SQ levels can be select in our radio.
Level 0 is for fully open mute.
The audio signal will continuously transmit. Other levels with corresponding strength are shown as below:
L1: 0.15uV
L2: 0.25uV
L3: 0.35uV
L4: 0.45uV
L5: 0.55uV
4.2.2.4
CTCSS/DCS and Switch
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Shenzhen Friendcom Technology Development Co., Ltd.
CTCSS/DCS
User can encode tones with CTCSS/DCS according to options shown in the picture. The feature is not available for high speed data transmission.
Switch
When we use radio remote: the Switch function can be use to change a logic from +5V to 0V minimum.
The judging condition is long period of 260Hz, sine wave 300 Ms.
4.2.2.5
Scan
This feature allow user to decide scan mode and establish channel scan list. Radio will start to detect channels and stay on each channel for at least 100ms according to the established scan sequence. If a signal or conversation is detected on any channels in scan list, the radio will stop on that channel and you will monitor the signal or hear the conversation. When the signal or conversation is disappeared, the radio continues to scan.
4.2.3 System Configuration
4.2.3.1 Channel Control Mode
Radio’s channel can be selected by inner Dip(4) switch(HW) or serial command inputted from our PC software(SW). Only in SW control mode, channel can be selected in “Channel” column.
4.4.3.2 Working Channel
In this column, user select current channel for working.
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4.2.3.3
Second Column Features
Shenzhen Friendcom Technology Development Co., Ltd.
4.2.3.3.1
LED Status Indicator
The LED indicator gives realtime status of the radio's operation. Red for TX, and green for RX.
4.2.3.3.2
TX Protection
This feature, when enabled, limit the amount of time that user can continuously transmit. The time can be set from 1 second to 60 seconds. When timeout, radio will release PTT pinout. If user want to transmit again, he or she have to wait delay time (set by “stop when timeout”) after the radio released PTT.
4.2.3.3.3
De-emphasis Volume
FC-302V radio output voice via SPK Pin with 9 levels volume. User is able to select appropriate volume for the connected external speaker in this feature.
4.2.3.3.4
Power Save Mode
Here, you can enable Power save mode or disable. When enabled, radio will automatically switch between
Sleep and Standby to lower power consumption. The time of Sleep and Standby can be set in “Power save time”.
However, for supporting fast attack time between TX and RX, the radio will keep in RX mode and the PLL keep working even in power save mode. Only the intermediate frequency circuit is off.
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Power Save Time
When Power save is enable, sleep time can be programmed from 20 to 500 ms in 20ms increment with 1~25 optional values. That means 1 equals to 20 ms, 2 equals to 40ms ....... 25 equal to 500ms
Standby time can also be programmed from 40 to 600 ms in 40ms increment with
1~15 optional values. That means 1 equals to 40ms, 2 equals to 80, ..... 15 equals to 600ms.
4.2.3.3.5
Carrier Detect Busy Signal
This feature is to set active level of BUSY Pin, high or low. The status is transferred to user for the connection with external devices.
4.2.3.4 Third Column Features
4.2.4.4.1 Audio-out
Output wave for Audio-out can be selected as square wave or sin wave.
4.2.4.4.2. Side Tone
When enabled, user can hear his own voice while transmitting voice. The sidetone volume is fixed at level 2 de-emphasis volume.
4.2.4.4.3
RSSI
To detect the air signal strength over the air ;
Unit : dBuv ;
4.2.4.4.4
Modem
Setting the signal coupling modes(AC coupling or DC coupling), from the modem baseband signal to the radio analog modulation interface.
4.2.4.4.5
Channel Scan
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Scan modes are set up in “Option” and shown as below
0 ---------normal scan with carry only
1 ---------normal scan, carry with tone
2 ---------priority scan, carry only
3 ---------priority scan, carry with tone
If normal scan is enabled, radio will scan from initial channel to channel 16 sequentially. If priority scan is enabled, radio will scan the prioritized channel with more times. Prioritized channel is the working channel before the scan. For example, if prioritized channel is CH10 and initial channel is CH8, then the scan sequence is CH8, CH10, CH9, CH10, CH10, CH10, CH11, CH10.....CH16, CH10.
4.2.4.4.6
Others
As mentioned above, the BUSY signal, SWITCH and CTCSS/DCS will only be available after 2 minutes when user finish programming setting. If you click here, user does not need to wait the 2 minutes.
5 Maintenance and Repair
5.1 Dimensions
Fig.17 Top View
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Fig. 18 Exterior View
5.2
Removing & Replacing the Upper Cover
Removing the Upper Cover
1. Unscrew the four upper cover mounting screws located on the upper cover of radio
To replace the Upper Cover
1. Reserve the steps taken to remove the Upper Cover.
Fig. 19-Upper Cover Removal
5.3
Removing & Replacing the Power Board & Modem Board & Shield Plate
Removing the Power Board & Modem Board Assembly & Shield Plate
1 Removing the Upper Cover (refer to Removing & Replacing the Upper Cover )
2 Disconnect the DB15 pin connector on CON14.
3 Unscrew the 4 monting screws.
4 Remove the Main Board Assembly.
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5 Remove the Shield Plate.
Shenzhen Friendcom Technology Development Co., Ltd.
To replace the Main board & Power board Assembly:
1. Reserve the steps taken to remove the Main board Assembly & Power board & Shield Plate.
Fig. 20-Power board & Modem board Assembly Removal
Fig. 21-Shield Plate Assembly Removal
5.4
Removing & Replacing the Main Board
1 Remove the Upper Cover (refer to Removing & Replacing the Upper Cover )
2 Remove the Power board, Modem Board & Shield Plate
(refer to Removing the Power board & Modem Board Assembly & Shield Plate)
3 Unscrew the 4 mounting standoffs.
4 Unsolder the antenna connector cable.
5 Remove the Main Board Assembly.
To replace the Main Board Assembly:
1. Reverse the steps taken to remove the Main Board Assembly.
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Fig. 21-Main Board Removal
5.5
Repairable/Replaceable Parts List
Fig. 22 Exploded View
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6 Accessories Available
Please contact the Friendcom sales team for accessory information. [email protected]
Tel: +86 755 23230544
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Appendix:
Modem debugging Instruction
Shenzhen Friendcom Technology Development Co., Ltd.
When the GMKS or 4FSK modem is installed with the radio, users need to calibrate the data deviation.
The center frequency calibration is only necessary when the modem adopts DC coupling.
FC-302-4FSK
VR2 ,
Debug wiring diagram:
Comprehensive tester
DC power supply
PC (personal computer)
Radio
Figure T1: Send the AT command by PC to activate the modem launching 01 code or PN9 code
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Comprehensive tester
DC power supply
Radio
Figure T2: User activate the modem launching 01 code or PN9 code by TRS pin.
Debugging method-1
Connect the devices according to the figure T1 shows. The VFF (Voice Frequency Filter) should be programmed as 20Hz-15KHz. DC power supply provide a voltage of 12V/2A. A serial debugging software sends the AT command to the radio.
Serial port settings : 4FSK : 9600/19200, 8N1 。
AT command
AT+TEST=CODE01/r
FC-302-4FSK send code 01
AT+TEST=EXIT/r
AT+WORKMODE=?/r
Quit from the test
Data rate query
AT+WORKMODE=M9600/r Program the data rate as 9600bps
Remark
Used for deviation adjustment of the
4FSK modem
Debugging method-2
The second method is easy to conduct. But the channel and coupling mode. The radio should be under wide band channel spacing for frequency deviation calibration.
Debugging :
Connect the devices according to the figure T2, SW (Switch) is connected between the STS (Pin 12) and
GND.
Close the SW in 30 seconds after the radio is powered up. Then the radio starts to transmit. User adjust the frequency deviation to 3.3-3.5KHz by adjusting VR2 and reading the deviation value
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Data transmission test
User can test the data transmission performance between two radios by data transmission test tools.
The test should be conducted under high-quality signal (under short distance test). The success rate s hould reach 100%
Notice:
FCC Radiation Exposure Statement:
9
150
You can't use the gain of antenna over 9.0dBi of this product.
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Key features
- Programmable 16 channels
- CTCSS/DCS
- 4FSK modem
- Compact design
- Wide range DC support
- Voice communication
- Data transportation
- 5-watt FM transceiver