My cb radio shuts off when i turn of the amp

per fcc rules (laws)? you cannot put an amp on a cb. max output 4 amps. you should be able to put a pa speaker using the pa output jack. take your radio back for warranty.

It could be small transistors--in the back where the light and transmit hook up. One small transistor will shut down transmit & possibly receive. Get it serviced at a radio repair shop. if you know how do it yourself. Change all small transistors to 2sc3904 or 2sc 3906 at "Radio Shack."

first if must be adjusted for deadkey to be lowered down from 1-4watts as not to hurt the amplifier, then connect a small jumper to the amp, run heavy gauge wires to a good power source hopefully the battery.. just use a relay to switch on/off w/key/stereo circuit to turn main power off the the amp. if need too. Also the SWR's must be low have them checked. Free @ any Good Radio Shop.

hello is it the fuse along the cb line or the amp line if its blowing on the cb line you will need to get a 5-7amp fuse or even 10amp to be safe ,do the same with the amp this should cure the problem

Its just RF feed back, that's normal, try to re-route the coax, or just turn the FM down, o try turning your modulation down....hope this was helpful....

Wire your radio directly to battery!
Run about 12 guage stranded wire to your battery with a Blade fuse standard size with a 25 amp fuse sice your using a CB Amplifier inbetween put a 30 amp auto relay.going through the switching contacts.
Now wire a grond to 1 side of relay coil the other use a12v source from fuse box so when key is turned on the radio will come on! If you want cb to come on anytime then I suggest skip relay and rub wires to
the floor with insulated banna connectors but put that fuse in line also the fuses on your cb and amplifier to.

Your problem is your trying to gather DC for your radio off a vecical power source them wires are to thin and you may be getting a Bad ground saight t the battery only best way! If your radio gets weak check your battery if you hve a cb amplifier on turn off durring transmissions without car running! goood luck

What radio?? Does it have single side band(SSB)? If not, then don't use SSB.

AM - amplitude modulation
SSB - single side band.

If you have SSB, there would be a switch on it to transmit in SSB. If not, it is AM only.

Second, Has this radio been worked on to be able to run on an amp? If not, you will blow the amp.

A CB radio transmits dead keys with 4 watts of power, and transmits with 4 watts of audio.

a 4 watt dead key is too much for a linear amp. You will smoke the transistors. Also, 4 watts of audio is not enough to drive it properly. You won't get full power.

The dead key needs to be around 2 to 2 -1/2 watts,or what ever makes the linear dead key half its peak wattage., and the modulation (audio) turned up all the way.

It doesn't sound like you know too much about CB radio's. Not a big deal, you can learn. For right now you may want to take it to a cb shop and tell them you want a peak and tune, and set up to run a linear.

You can find CB shops usually at truck stops. Some area's they are other places. Check the internet for local shops.

usually 2.5 Dan

the radio you are trying to fry your amp with is driving the amp to hard. that radio has a toshiba 80 watt final inside the radio you are killing your radio with the dead key at 2 watts it causes the final to overheat and shut down because it is not built to be turned down that much. its best to turn the radio back up and use the radio.

Hi,

Connect the INput of the amp to the TX out of the radio. Connect the OUTput/Ant of the amp to the INput of the meter (SWR/Power). Connect the OUTput of the meter to the cable that leads to the antenna.

With this arrangement, you will be able to measure the SWR of the antenna and power output (of the amp) going to the antenna.

Hope this be of some help/idea. Pls post back how things turn out or should you need additional information.

Good luck and kind regards.