Question about Cobra 148 GTL 120-Channels Base CB Radio

Open Question

No rf output, good modulation - Cobra 148 GTL 120-Channels Base CB Radio

Posted by runninbear33 on

Ad

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

2 Answers

Trying to connect a DVD player to a TV that is only equipped with a cable jack what do I do


You need an A/V to RF adapter to convert the audio and video outputs of the DVD player to RF so that you can watch the DVD player on an available VHF channel on the TV. See this device offered by Amazon:
RF Modulator TV Switch Audio Video RCA Ant Input to Type Coax Output...
You may also need a short 75 ohm length of coaxial cable with "F" type connectors on both ends and A/V cables with RCA plugs to complete the setup.

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/dave_fb2c45146b845cea

Jan 02, 2015 | Televison & Video

Tip

RF Modulators and cable connections


948bde9.jpg

RF MODULATOR HOOKUP
For a TV with only a RF input jack, a RF Modulator can be used to hookup DVD players, DVD recorders and other devices which output RCA composite video and audio. For example, analog cable TV can be connected using a RG-6 type coaxial cable to a VCR or older DVD recorder's analog cable ready tuner RF input. Then as shown above, the output can be connected to the TV thru the RF modulator. The modulator outputs on channel 3 or 4 for the older TV so the TV is set to channel 3 or 4. Some RF modulators are built-in to Audio/Video switch boxes. These allow multiple RCA inputs along with RF input.

3b00cff.jpg


RF MODULATOR CLOSE-UP
The modulator converts signals to channel 3 or 4 so older TVs can tune them on their analog tuners channel 3 or 4.

RF Modulator - buy online
http://sewelldirect.com/belkin-rf-modulator.asp

on Aug 23, 2010 | Audio Players & Recorders

1 Answer

My wii u stil wont work after being hooked to an rf modulator to an older tv


Hi Lisa can you provide some more information
What is the model number and make of the rf modulator?
what wii output did you use to go into the rf modulator ?
what frequency does the rf modulator output at ?
What model number and make is the television ?
What type of cable is being used from the rf modulator to the tv ?
Is it a video cable or a proper 75 ohm impedance coaxial cable
what is the impedance of the rf modulator output is it 75 omhs and what is the impedance of the tv is it 75 ohms or is it 300 ohms if it is 300 ohms on the television ( usually antenna is a ribbon cable screwed onto the back of the tv rather than a coaxial socket ) different you need a balun
http://www.jaycar.com.au/productView.asp?ID=LT3022
I am recommending your first point of problem trouble shooting first is to check the impedance of your television compared to the impedance of the rf modulator and compared to the impedance of the cable used. IF they do not match then power is lost and the signal won't get to the TV.

Dec 27, 2014 | Nintendo Wii U

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

How do i adjust the sideband


Instructions

Connect one end of your coaxial cable to the output port on your SSB Transmitter. Connect the other end of the cable to the coaxial input port on your RF demodulator.

Connect one end of your 1/4 inch audio cable to the audio output port on your RF modulator. Connect the other end of the audio cable to the audio input jack on your amplifier.

Turn on your SSB transmitter, RF modulator and amplifier. Adjust your SSB transmitter modulation by adjusting the knob on your RF

Jul 22, 2012 | Ranger RCI-6900F-25 CB Radio

1 Answer

Rci 2980 no modauliton on am/lsb/usb/fm.but good recived. and good output.on am.


is it steady output on AM with no modulation swing. then change the Audio transistor. SSB should work. they feed straight through to rf final. if no modulation on either mode, then check the mic, audio ic preamp.

Nov 26, 2009 | Radio Communications

2 Answers

Connecting magnavox dvd/vcr player DV220MW9 to a 40 year old TV


What type of Inputs do you have on your TV. (ANT IN, S-Videio, RCA Video,RCA Audio)

If you only have a ANT In or RF Coaxial hook up you will need a RF Modulator

Jan 03, 2009 | Philips Magnavox DVD/VCR Dual Player

1 Answer

Installing DVD player/RF Modulator with Star Choice


The RF modulator probably had a red, white, yellow trio of RCA jacks (A/V jacks), a coax jack marked "antenna" and another coax jack marked "TV"

Putting the DVD output to the A/V jacks allowed it to play out to the TV, which couldn't otherwise accept the DVD player.

The satellite box probably has coax and a/v jacks as output. Use the coax as output to the antenna input of the RF modulator, and the A/V jacks of the DVD player to the A/V jacks of the RF modulator. Hopefully the modulator allows the A/V jacks to have priority over the coax input, so that when the DVD plays it "wins"

Jan 12, 2008 | Televison & Video

1 Answer

RF Modulator


The RF modulator changes the outputs from RCA (red, white, and yellow) to a Coaxial Cable (COAX).

You connect the DVD players RCA outputs to the RCA Inputs on the RF Modulator, then connect the COAX Output from the RF Modulator to the television.




Best of Luck.

Oct 23, 2007 | Car Audio & Video

Not finding what you are looking for?
Cobra 148 GTL 120-Channels Base CB Radio Logo

Related Topics:

93 people viewed this question

Ask a Question

Usually answered in minutes!

Top Cobra Radio Communications Experts

Brad Brown

Level 3 Expert

18397 Answers

Michael Thomas
Michael Thomas

Level 3 Expert

3053 Answers

Marvin
Marvin

Level 3 Expert

85239 Answers

Are you a Cobra Radio Communication Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...