Question about Cobra 29 LX 40-Channel CB Radio with Instant Access 10 NOAA Weather

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Radiocheck shows rf output power failure - Cobra 29 LX 40-Channel CB Radio with Instant Access 10 NOAA Weather

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  • Cobra Master
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Its an inside the radio fix mine is doing the same thing and I have had the time to get into it and fix it.

Posted on Sep 01, 2014

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Posted on Jan 02, 2017

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What should pwr ant knob be adjusted to?


The PWR/AMT knob:
PWR: Variable RF Output Power. The transmitted power of the Magnum S-6 may be varied from 0 to 40 watts peak in all modes. Rotate clockwise to increase RF output power. Rotate counterclockwise to decrease RF output power.
AMT: All Mode Talk Back. AMT, a Magnum exclusive, is an independent talk back monitor. The AMT functions in all modes and allows the operator to monitor the trans- mitted audio of the Magnum S-6. To increase the vol- ume of the talk back rotate the control clockwise. To decrease rotate counterclockwise. To turn off the talk back rotate the control completely counterclockwise.

Apr 22, 2017 | Car Audio & Video

2 Answers

Transceiver signal interference


The FT-840 uses a die-cast RF power amp with thermally switched fan to ensure full power output (up to 100 watts). The digitally synthesized local signals ensure clean, low-noise transmitter output on all HF amateur band. There might be no AC line interference. it has strong Rf output. any AC line intersect does not affect its radio performance. Check and adjust RF power so to maintain proper output. some times more RF power generated at the output may cause interference. adjust Rf power..Even some unfiltered Noise getting the other end of the end may calso cause interference. Check for any Ripple voltages present at the output. Contact authorised service station for further Rectification. thank you shanth

Dec 23, 2007 | Computers & Internet

1 Answer

Receives,no Tx


Many possibilities:
1: The radio took a hit and broke the PCB or the connection to the RF out jack.
2: Some other PCB joint failure
3: The RF output IC is toast
4: The driver is toast
5: The tx oscillator is so far out of whack it cannot develop the frequency it is set to.
6: You have a bad cable or antenna connector
7: You have a bad battery, battery contact or power connection
8: You have a power supply or other problem

Sep 26, 2015 | Icom IC-T7H VHF/UHF Handheld Dual Band...

1 Answer

No RF out


Some VCR's have the ability to switch off the RF output. You should look under the tuning menu of the VCR.

Nov 08, 2014 | Televison & Video

1 Answer

Rci 2995dxrci2995 low rf output


you need to buy a new one or show it to an electronics engineer ...if it is good(not damaged) but you are asking how to increase its rf output power then an electronics engineer might design a custom electronic circuit with RF amplifier that provides higher output power.....also you might want to check out the rules regarding the power you are allowed to use in your country....
class AB Power Amplifier Design and Simulation

Jan 25, 2014 | Radio Communications

1 Answer

Truck usually starts and runs fine but sometimes when I turn on the key absoulutelly nothing happens


nothing as no lights radiocheck ignition switch or nothing as in starter check relay and power at solenoid on starter when switch is in start position no power check relay have power replace starter

Jan 10, 2011 | Mitsubishi Mighty Max Cars & Trucks

1 Answer

Sound loss


bad system cofiguration too much load on rea amp

May 11, 2009 | Infinity 475A Car Audio Amplifier

2 Answers

Panasonic NV-SJ205 Changing Rf ?


ok. This is a really easy one.
All you have to do is hold down the menu button on the remote control for more than 5 seconds, If that doesnt work hold down the power button on the remote control for more than 5 seconds. If that doesnt work hold down the power button on the actual vcr unit for 15 seconds. The first method should work for Panasonic's fine.
This will then display your current rf output.
You can then change the output by using the up and down arrows or the channel up and down button on your remote or the vcr unit.
Press menu button to save or the same button you used to bring up the rf opposition eg power button on remote or the unit.

all the best. Top tech

Sep 02, 2008 | Panasonic NV-SJ205 VHS VCR

1 Answer

Tv digieye


Hi.

At the back of the box there will be 2 rf outputs.
What you are looking for is the rf output 2. What you need to do is connect a rf cable from rf output 2 into the magic eye,which in turn plugs into the rf input on the tv.
To make sure that the 9v signal is being passed up the cable(this is what allows the magic eye to work)
go into services on the SKY guide the press 4(system set up) then 01 select. This will give you access to the installers menu. Press 4 (rf outlets) and then make sure that power supply is ON. Save new settings.
This will now let you use a magic eye.

http://dysonmanuals.llc.nu/

Chris.

Mar 11, 2008 | Televison & Video

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