CVT 1stereo 1ub/2ub/3ub/uhf - II
Installation Instructions
The Channel Vision Multi-Room Video Modulator makes it easy to map any three audio/video sources to any unused channels on your television set(s).
Watching your security cameras, laser disk, video tape, or any other video signal becomes as easy as switching channels with your remote.
Because the CVT Modulator merges these additional inputs into your existing TV signal
"ahead of" your television sets the new channels will be available at every TV hooked up to your coax cable.
You can even map your stereo system to an unused
TV channel to pipe music to any room on your TV
"network"!
Please note: Some TV tuners need a video input to achieve audio output.
234 F
ISCHER
A
VENUE l
C
OSTA
M
ESA
, CA 92626
(714) 424-6500
l
(800) 840-0288
l
(714) 424-6510
FAX
http://www.channelvision.com
l
© 2001, Channel Vision
!
C A U T I O N
RISK OF ELECTRIC SHOCK
DO NOT OPEN
CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK,
DO NOT REMOVE COVER.
PROPER VENTILATION REQUIRED.
NO USER-SERVICEABLE PARTS INSIDE.
REFER SERVICING TO QUALIFIED SERVICE PERSONAL.
Products to be installed by certified dealers only.
Certification Requirements: Must be professional installing dealer, pass certification test and familiar with TV and antenna systems. Call 800/840-
0288 for Channel Vision Training Manual and certification test.
Channel Vision CVT1ub/uhf-II, CVT1stereo-II,
CVT2ub/uhf-II, CVT3ub/uhf
Tested To Comply
With FCC Stan-
FOR HOME OR OFFICE USE
Note: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications.
However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try and correct the interference by one or more of the following measures:
•
Reorient or relocate the receiving antenna.
•
Increase the separation between the equipment and receiver.
•
Connect the equipment into an outlet a circuit different from that to which the receiver is connected
•
Consult the dealer or an experienced radio/TV technician for help.
FCC Regulations – the Cable TV Act
“Cable home wiring” is the cable wiring located inside a Cable TV subscriber’s home or apartment that has been installed by a cable operator or its contractor. It does not include such items as amplifiers, converters, decoder boxes or remote control units.
After a subscriber voluntarily terminates cable service, the cable operator may take one of two action:
1. Leave the home wiring in place.
2. Notify the consumer that it will remove the wiring unless the consumer
purchases it from the cable operator on a per-foot replacement cost basis.
If the wiring was previously transferred or sold to the subscriber, the subscriber owns it; and the cable company cannot remove it or restrict its use, regardless of the reason for service termination.
If the subscriber does not already own the wiring and declines to purchase it from the cable operator, the cable operator may remove the home wiring within 30 days of the subscriber’s refusal. The cable company must remove the wiring at no charge to the subscriber, and must pay the cost of any damage caused by removing the wiring.
To leave the wiring inside and remove the wiring outside a subscriber’s home, a cable operator may, for single unit dwellings, sever the cable approximately 12 inches outside the point where the cable enters the outside wall of the subscriber’s home.
For multiple unit dwellings, the cable operator may sever the wire approximately 12 inches outside the point where the cable enters the subscriber’s individual dwelling unit, except in cases of “loop-through” or other similar series wire configurations that are not covered by the home wiring rules.
If the cable company fails to remove the wiring within 30 days of the subscriber’s refusal to purchase it, the cable operator forfeits its right to the wiring and may not remove it or restrict its use at any later time.
A cable operator will not be held responsible for any signal leakage that occurs from the home wiring once the cable operator ceases providing service over that wiring.
Basic Installation Instructions
The Channel Vision Multi-Room Video CVT Modulator is easy to hook-up.
Just connect your video sources to the CVT Modulator as you would connect them directly to your TV's "video in."
Determine what channels you want to map your video sources to, then, with the power off, use the DIP Switch Settings Table to set the dip switches on the back of the CVT to provide that channel selection range.
Confirm that the video sources you're going to hook up are sending good signals. Attach them to the video and audio inputs on the back of the CVT
Modulator. Connect the RF output on the CVT Modulator to one input of the supplied combiner and your existing cable/TV/antenna cable to the other. Finally, connect the output of the combiner to your TV network and plug the CVT Modulator in to the wall outlet.
Turn your TV on, then press SELECT on the CVT Modulator to cycle the front display to the A, B, or C input. Then select the channel you wish to set (the light on the front panel shows the currently selected input, and the channel display shows the channel to which that source is currently being sent). Change the channel by holding the SELECT down for two seconds until the A/B/C light on the front panel blinks. This puts the CVT
Modulator in channel-change mode.
Press the UP or DOWN buttons on the CVT Modulator to adjust the channel number as desired. When satisfied, press SELECT again to exit channel-change mode (the CVT Modulator will automatically exit channelchange mode after 5 seconds of inactivity). Repeat for your other two input sources (if applicable). Leave a channel free between your selected channels to avoid frequency interference. For example, mapping to channels 32-34-36 is fine, but 32-33-34 is not.
We suggest that you connect a RF distribution amplifier to your cable/ antenna signal (see set up diagram on next page) so you can easily balance the signal strength of that signal and the CVT Modulator signal. Extreme
CVT 3ub/uhf Basic Setup
Source A/V Inputs
Cable or
Antenna
CVT 3UB/UHF
Channel Vision
MULTI ROOM VIDEO TECHNOLOGY
CVT - 15PIA
HS-2
HS-3
Setting Up TV Channel Range
Example of Dip Switch Settings
Switch Band/Channels
** Cable (59-86 ) below
**
Cable (65-135)
Antenna (14-78)
Antenna (14-39) &
Cable (91-135)
Hi - Z
75
Ω differences in signal strength may cause interference.
That's all there is to it. The information on the following pages will help you configure more sophisticated home "networks" but is not necessary for basic setups.
System Design Considerations
Sophisticated home "networks" involving many TV sets are feasible with the
CVT Modulator, but care must be taken to design an optimum TV signal distribution system.
TV sets are designed for signals around 10dBmV. Signals substantially below
0dBmV result in weak, fuzzy, snowy pictures. FCC states 0dBmV minimum at
TV and 15dBmV maximum
Signals above 10dBmV may overdrive older TV sets which don't have modern automatic gain controls (which can handle signals to 40dBmV). An inline attenuator (pad) can be used to reduce these signals, and to balance radically different signal strengths at all your TV's.
Signal strength decreases with coax cable length, and through connectors, splitters, and combiners, so it's important to determine how much cable and what in-line devices you'll be using, and adjust your input signal levels with amplifiers at the front end or in-line on your network to compensate for the line losses. The charts on the back of these instructions will help you calculate likely losses through coax cable runs and splitters.
In-line amps are powered through the coax cable and can be used to achieve modest signal strength gains; more powerful, a/c powered amps offer more amplification (and usually adjustable gain and tilt too). Your system should provide 10dBmV to every TV (maximum is 15.5dBmV, per the FCC).
Reverse isolation is used to prevent the signal from your CVT from leaking out to the antenna or cable input. Reverse isolation is accomplished by placing an amplifier between your antenna or cable company input and the CVT combiner. This prevents the CVT signal from propagating back up the input line.
Another way to prevent leakage from your system is to cap all unused coax cable ports on you network with appropriate terminators.
Bandpass filters stop unwanted frequencies while passing all others along.
They're handy if a channel you want to use for a CVT source is already in use.
Taps are used to redirect a portion of a signal from the "main" trunk line while passing the remaining signal strength through. For example, a 12dBmV tap would pass 29dBmV from a 30dBmV trunk line signal and pass the remaining
18dBmV to a branch line (minor signal loss of 1dB would occur in the trunk line leaving 29dBmV)
Demodulators are used to demodulate the output of a cable box converter, making it possible to assign the cable signal to any channel (cable boxes usually limit your choices to channel three or channel four). Use a demodulator to "condition" the cable signal before assigning it to a CVT input line.
** Note: When using channel range settings 59-86 you must set the dip switches, plug in the unit, set the front display to your desired channel, unplug the power again and then your channels will work.
Note: Be sure to remove power from outlet before changing DIP switch settings.
Note: Switch positions are relative to back of modulator.
Note: Black indicates where the switch should be.
Video Level (bottom)
Bottom View
Fuse
10 30
1K
Ω
75
Ω
C B A
Video
Input
L-Audio
Input
R-Audio
Input
120 VAC
Input
TV Band
DIP
Switches
RF
Output
Attenuator Impedance
DIP
Switches
Back View
Adjustments
Attenuator: Decrease signal strength (output dBmV) of modulator.
Stereo Loop: Used to pass stereo to TV on non-stereo modulator.
75
Ω
position is normal, 1K
Ω
position if using stereo loop.
Video Level Adjustment: Adjust the incoming video source base band level. Use only to increase brightness and balance the channels for consistent contrast. Spectrum analyzer use is suggested.
Channel Select: Used to select the input source (A, B or C), you wish to change. Also has a lockout feature to prevent the end user from changing channels. Press and hold for 2 seconds or until front light blinks to allow channel up/down to work.
Channel Up/Down: Changes the modulated channel.
DIP Switch Setting: Selection of TV frequency band.
UHF = Antenna, Ultra = Cable.
System Installation Checklist
more for big screen TV's. Remember, Uncle Sam doesn't like more than 15.5dB of signal going into any TV. signal loss per 100' of RG6.
Splitters should be 5MHz to 1GHz, and amps should be 40MHz to 1GHz. frequency spectrum (i.e. UHF or cable).
"snow". No lines or interference. frequencies the modulator will be assigned to and keep any potential interference out of the system. Model 3102, cleans up channel 80 and above.
"active" channels.
There will always be a drop in antenna/cable signal strength when combining a modulator to an existing system (because of insertion loss with the combiner). make sure to have equal signal strength at the point of the combiner so one signal does not degrade the other and cause beat frequencies.
10. When possible, use the lowest frequencies available for the modulated channels. Lower channels (frequencies) have lower signal loss on the cable runs.
11. When in doubt, run the signal a little high to the television and use an attenuator to lower the signal strength going into the TV.
Attenuators may be combined (i.e. two -3dB attenuators will equal -6dB).
12. Make sure to use a well shielded coax of either RG6 Quad or
RG11 for RF distribution systems.
13. Use RG59U Coax for composite/baseband video signals only.
14. Combine the modulator into the video distribution system as far
"up-stream" as possible.
15. If the system needs to be amplified use the amplifier as far "upstream" as possible.
Trouble Shooting
Trouble shooting any system can make or break the entire installation. Here are the most common problems and solutions.
After trying these solutions, call (800) 840-0288 for 24 hour technical assistance. Calls before 8 a.m. and after 5 p.m. pacific standard time will be returned by the technician on call.
Stops Modulating : No Modulation
Modulator requires proper ventilation for long life reliability and continued operation. Unplug unit, let it cool down, install in well ventilated area to continue operation.
Snowy Picture : No Modulation
This is a problem of the TV and the modulator not "talking" to each other.
If cable TV or antenna? If the unit uses dip switches to set the channel band, was the unit powered down during or after the switches were reset to the proper band? If the unit uses a jumper check for proper placement.
"Air" for UHF channels or Cable for Ultraband channels . The
TV will have an on screen set-up menu or a switch for this function. Also make sure the modulated channel isn't blocked out by auto-programming. To check for the TV being set to the wrong band, go to the equivalent channel on the other band (i.e. to check 65 cable try 14 UHF). Add 51 channels for antenna connection to cable channels.
65.
Black Picture : No Modulation
In this case, the TV and the modulator are "talking" to each other.
The video signal is not being passed through the system. i.e. VCR. outputs directly into the video inputs on the TV. Verify video source is working.
A) Picture goes to snow, problem is between video source and inputs on the modulator.
B) Picture stays black, hook up the modulator directly to a TV eliminating all the components of the system and check the picture.
Grainy Local Channels : Good Modulated Picture channel feed directly to the distribution system and check TV picture quality.
A) If the picture quality is good the insertion loss of the combiner for the modulator is degrading the local channel signal. Use a CVT-15PIA to compensate for the insertion loss.
B) The other alternative is to use a 6dB tap as the combiner, put the local channel feed on the pass through port for a minimal loss of signal connect the modulator to the tap off port.
C) If the picture is still bad, check for a bad connection where leakage may occur or if the shielding braid is touching the center conductor. before the combiner. See basic schematic.
Grainy Modulated Channel : Good Picture on the Cable
Channels
modulated channels.
A) If the modulated channels are good, use a low pass filter to
"clean-up" the incoming frequencies to be modulated. disconnecting the local channels, evaluate signal loss of modulator through the splitters and cable length of the system. Amplify after the combiner if needed. combiner for leakage or the cable braid is touching the center conductor. modulator is turned to maximum output power. capability.
TV Won't Tune High Enough to get Modulated Channel
(Channel Vision Model #1172) to allow the TV to view a modulated channel on channel through the external tuner. the TV will not work with the system.
Cable Company Box Won't Pass a Modulated Signal sending a signal the TV can receive. modulated signal around the cable box. See schematic page.
Cable Company Uses All Available Channels for clean modulation (won't effect channels 95-99). or multiple channels.
Modulated Picture is Too Bright or Washed Out
1.
Ω
position. adjustment potentiometer on the bottom of the chassis. aimed at the sun or a reflection.
Modulated Picture is Too Dark through quad, set impedance matching switch (termination switch) to 1
ΚΩ. potentiometer on the bottom of the chassis.
directly into a TV.
5. units to the proper brightness.
Check all connectors for 75
Ω
.
Noise on the Audio enters the TV. components and the modulator.
Audio is Too Low
Use a Y-Connector to combine the left and right audio before entering the modulator.
Herringbone in Picture on Modulated Channel
Disconnect modulator from local channels an check modulated channel.
A) If there is programming move the modulated channel.
B) If the picture is snowy, use a #3102-78 low pass filter to block noise or data coming in from cable company.
C) Separate modulated channels by two channels.
Horizontal Bars Rolling Through TV Picture into the system. Disconnect that component and check TV. If the hum bars stop, use a DC blocker down stream from that component to block the power from getting to the TVs. check for impedance mismatch by adjusting the video level adjustment pot.
Vertical Bars Rolling Through TV Picture
Check for AC power getting on the line. Use a ground breaker in line.
Black and White Lines on one Local Channel
Move modulated channel up to a new channel. If problem persists and all of the inputs of a multiple input modulator are not being used, check default channels on modulator to see if default channel is set to the same channel that the problem channel is set to.
Flashing at the Top or Middle of TV Picture
O u c h!!!
attenuator/down gain of modulator. attenuate output of amplifier.
Picture is Tearing
Possible impedance problem. Check that impedance switch is set to 75
Ω.
Ghosts on the Picture
1.
Ω
terminator model 2101. isolation combiner, HS model combiner. coax will cause ghosting. Pull new coax (RG6 quad).
Low Channel Pictures are Good, High Channel Picture is Grainy amplifier gain until the higher channels look good. system. Replace any that are not broadband 5MHz to 1GHz.
Low Channels are Wavy Vertical Lines, High Channels are Good
a) Channels look good: problem is beat frequencies or unbalanced cable vs. modulator.
1. Decrease modulator power by adjusting attenuator (red knob on back) or use external attenuators before it is combined with the cable TV signal.
2. Use a 9 or 12dBmV tap in reverse instead of the supplied
Splitter/Home Run Design
Cable or
Antenna
3102 Filter
Channel Vision
MULTI ROOM VIDEO TECHNOLOGY
CVT - 15PIA
10dB
28.5dB
50'
6dB Attenuator
A/V Source
28.5dB
RF Out
HS-2
18dB
18dB
100'
3dB Attenuator
11dB
CVT 1UB/UHF-II
25dB
18dB
HS-4
Basic design for home runs to close TVs.
18dB
150' 150'
12dB 12dB
TV
TV TV
TV
CVT 3UB/UHF
Bypass Cable Box Converter
HS-2
Cable or
Antenna
3102 Filter
Hookup with stereo receiver, Stereo VCR and Cable Box
Converter and use your stereo receiver for
HS-2
Channel Vision
MULTI ROOM VIDEO TECHNOLOGY
CVT - 15PIA
Eliminated if cable box will pass modulated channels RF In
RF Out
Cable Box
RF In A/V Out
VCR
RF In
TV
A/V In
A/V Out
Stereo Receiver
A/V In
Cable Box Combiner Kit
HS-2T
Cable or
Antenna
Tap System
Large design application with minimal loss for the trunk line, tap pulls part of the signal and attenuates a portion (6dB,
9dB, 12dB,
16dB, 20dB).
Cable or
Antenna
Channel Vision
MULTI ROOM VIDEO TECHNOLOGY
CVT - 15PIA
CVT 1UB/UHF-II
22.5dB
RF Out
22.5dB
HS-2
19dB
Channel Vision
MULTI ROOM VIDEO TECHNOLOGY
CVT - 15PIA
34dB
50'
9dB
TV
32dB
23dB
TAP
31dB
100'
27dB
10dB
TV
17dB
TAP
26dB
100'
22dB
10dB
12dB
TAP
21dB
50'
TV
10dB
TV
9dB
TAP
19dB
18dB
50'
16dB
3dB Attenuator
13dB
TV
Cable or
Antenna
Stereo Loop Through
Camera
Stereo Loop Kit w/ "Y"
Connectors
Laser Disk Player
Channel Vision
MULTI ROOM VIDEO TECHNOLOGY
CVT - 15PIA
CVT 3UB/UHF
HS-2
VCR
HS-4
Five channels total, four for individual camera channel and one channel for the quad channel.
TV TV TV TV
All Sources Channel-Selectable at all Television Sets
Home Theater or Receiver, Stereo
TV and/or Stereo Speakers
Loop Through Quad
QUAD
LOOP THRU
Camera
Camera
Camera
Camera
Cable Box
Bypass cable box if modulated channel won't pass through the cable box.
HS-2T
CVT 2UB/UHF-II CVT 3UB/UHF
HS-2
TV
Understanding Digital CATV/CATV Modems
Due to the launch of digital CATV across the United States there is a need for clarification of digital CATV, which Channel
Vision
TM offers a basic understanding of. Analog channels start from channel 2 to around the 70’s, digital may start around mid
80’s to as high as 115, some as high as 135. Exclude 95 to 99,
(the old FM band now used for pay-perview or other programming). Compression of channels will vary in ratio, one cable company may use 8 to 1 ratio, compressing 6 to 12 or as high as 16 channels every 6MHz or every channel. The compressed channels, or forward feed of information is introduced to the digital to anolog CATV converter box supplied by the
CATV company. This converter box creates hundreds of channels. The digital forward feed to the converter box must remain Undisturbed. This means if an incorrect low pass filter is installed or a modulated channel is placed on top of the digital information, it will disable the digital converter box. We must understand frequency allocation to prepare for profitable installations. Satellite frequency starts at 950 MHz, CATV systems are maxed at 750MHz and very few are at 860MHz. The dBmV signal characteristics are opposite from the typical analog signal, remember the FCC standard is 0dBmV minimum and
Systems With Digital CATV
Now that we have somewhat of a understanding of digital, let’s work around the digital converter. For years
Channel Vision
TM
has always suggested 2-RG-6 coax to each TV location for good reason; you can dedicate the digital converter or modems and use the other coax for
15dBmV maximum at the TV. The digital converter’s optimum level is 0dBmV to-10dBmV analog and drop out levels are -
18dBmV.
Every system will vary, you would need a true digital meter to read digital, though an RF meter will tell you analog distribution/modulation/satellite/antenna/CATV cable ready.
*Please see diagram A on the next page
If you only have one coax to each location, of course your options are not as open as having two coax to each location. We can still modulate with a limited amount of space. Channel Vision
TM
has created a 3202 low/high pass filter combo. This filter will pass all channels below 70 and 80 and above, allowing two channels to modulate. measurements. The analog signal will vary anywhere from -
30dBmV to -10dBmV. An RF amp may be required for multiple converter boxes due to the level from the cable company brought into a residence as low as –30 dbmv.
Modems also have a low analog dBmv requirement. The analog signal may be too hot for the modem. CATV companies may use taps in a line to pad down signal; optimum levels will vary from 0dB to
- 10dB, +10dB may be to hot. Some CATV companies use channel 106, and of course if the incorrect filter is used it will disable the modem as it would the digital CATV box.
The modem is usually dedicated at the front end of the distribution system. Usually a two way splitter with one leg for modem and the other leg for distribution. CATV companies are still testing the water with digital cable converters and modems. A resident may have a modem, a
TV, and various splitters off of one line and be trouble free, while the neighbor a block away has no equipment other than a modem and a TV off of separate lines and has drop out failure; return path seems to be the biggest issue. Some
CATV companies have found that high value hard line taps are causing modem failure. System specifications of the
CATV system you are installing in is the key to a successful installation.
Channel Vision also has low/high pass in a single filter part #
3205-60/69. This filter has a 4 channel slope on both sides allowing 2 channels to modulate 64-66. The 3205-70/79 filter also allows two channels 74-76.
*Please see diagrams B and C on the next page
Channel Vision has also created a 3102-118 low pass filter to add to the existing line of low pass filters.
The 3102-118 will pass all forward digital information with a 4 channel slope allowing 2 channels of modulation or more depending on the TV’s tuner capability.
*Please see diagram C on the next page
DIAGRAM#A/OPTION 2
CATV
HS-2
2-RG-6 COAX TO EACH
LOCATION-DEDICATING
THE DIGITAL
CONVERTER BOXES.
DEDICATING
MODULATION/
RECOMBINING AT TV
A/V SOURCES
CVT 1UB/UHF-II
CH 85
DIGITAL
Cable Box
DIGITAL
Cable Box
Cable or
Antenna
DIAGRAM#B
3202 LOW PASS HIGH
PASS CONFIGURATION
ONE RG-6 TO LOCATION
3202 Filter
3202 Filter
A/V SOURCE
CVT - 15PIA HS-2
CVT 1UB/UHF-II
CH 74-76
HS-8
3101 CABLE BOX
COMBINER KIT CAN
BE USED IF NO VIDEO
INPUT AT TV
A/V-OUT TO TV
HS-2 ANALOG
CH 2 TO
70
HS-8
DIGITAL
Cable Box
DIAGRAM#C
Cable or
Antenna
3102 Filter
3102-118 LOW PASS
FILTER USED WITH
DIGITAL CATV/1- RG-6
COAX /CATV SYSTEMS max 750MHz
PART#3205 ALSO IS PLACED AT THE
FRONT OF THE CATV SYSTEMS
A/V SOURCES
CVT - 15PIA HS-2
CVT 1UB/UHF-II
CH 123/125
HS-8
DIGITAL
Cable Box
HS-2
Channel Vision Limited Warranty
Channel Vision Technology will repair or replace any defect in material or workmanship which occur during normal use of this product with new or rebuilt parts, free of charge in the USA, for two years from the date of original purchase. This is a no hassle warranty with no mail in warranty card needed. This warranty does not cover damages in shipment, failures caused by other products not supplied by Channel Vision Technology, or failures due to accident, misuse, abuse, or alteration of the equipment. This warranty extends only to the original purchaser. A purchase receipt, invoice, or other proof of original purchase date will be required before warranty repairs are provided.
Mail in service can be obtained during the warranty period by calling toll free (800) 840-0288 toll free. A Return
Authorization number must be obtained in advance and be marked on the outside of the shipping carton.
This warranty gives you specific legal rights, and you may have other rights (which vary from state to state). If a problem with this product develops during or after the warranty period, please contact Channel Vision, your dealer, or any factory-authorized service center.
CVT 1stereo Specifications CVT 1ub/2ub/3ub Specifications
RF Modulator
Video
Audio
PLL Synthesized Oscillator
NTSC
MTS Stereo
RF Carriers
Frequency Stability
Frequency Ranges
+1KHz
UHF 471.25-855.25MHz
Channels
Channel Width
Audio Offset
Sidebands
RF Output
Ultraband 433.25-859.25MHz
UHF 14-78, Ultraband 59-135(Excl 95-99)
6.0MHz
4.5MHz
Double
Maximum
Gain Range
35dBmV
20dBmV Adjustable Attenuator
Video Output 1VPeak to Peak
Audio Output 1V RMS
Video Performance
Differential Gain Less than 2% (0.2dB)
Differential Phase
Signal/Noise Ratio
Less than 3 degree
Greater than 52dB
Spurious Output Rejection
Outside Carrier
Inside Carrier
Isolation
Inputs
+12MHz Greater than 70dBC
+12MHz Greater than 55dBC
Greater than 70dBmV
Video
Audio
Connectors
0.4V-2.7V Peak to Peak adjustable
1V RMS
Video Inputs
Audio Inputs
RCA Female
RCA Female (stereo loop thru)
RF Output F type female
Signal Combiner Supplied with unit
Operating Temps 0C to 50C
Transformer Input
Input Voltage
Power
Exterior
Display
Channel Selector
Dimensions
115 VAC, 50/60Hz
8 Watts
ABS resin fiber - black
3 digit channel display
Up/Down selector buttons
9” x 6” x 2.8”
RF Modulator PLL Synthesized Oscillator
Video NTSC
Audio L&R Monaural/Stereo loop opt.
RF Carriers
Frequency Stability +1KHz
Frequency Ranges Antenna/UHF 471.25-855.25MHz
Cable/Ultraband 433.25-859.25MHz
Channels UHF 14-78, Cable 59 -135
(Excl 95-99)
Channel Width 6.0MHz
Audio Offset 4.5MHz
Sidebands Double
RF Output
Maximum 35dBmV
Gain Range 0-20dBmV Adjustable Attenuator
Video Output 1VPeak to Peak
Audio Output 1V RMS
Video Performance
Differential Gain Less than 2% (0.2dB)
Differential Phase Less than 3 degree
Signal/Noise Ratio Greater than 55dB
Operating Temps 0 o
C to 50 o
C
Spurious Output Rejection
Outside Carrier +12MHz Greater than 70dBC
Inside Carrier +12MHz Greater than 55dBC
Isolation Greater than 70dB
Inputs
Video 0.4V-2.7V Peak to Peak, adjustable
Audio 1V RMS
Connectors
Video Inputs RCA Female
Audio Inputs RCA Female
RF Output F type female
Signal Combiner Supplied with unit
Insertation Loss 3.5dBmV
Bandwidth 5-1000MHz
Transformer Input
Input Voltage 115 VAC, 50/60Hz
Power 8 Watts
Exterior ABS resin fiber - black
Display 3 digit channel display
Channel Selector Up/Down selector buttons
Dimensions 9” x 6” x 2.8”
