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Has anyone figured out how to turn the bass and treble into echo on these radios is it easy or something a tech has to do

Has anyone figured out how to turn the bass and treble into echo I'm seeing videos that techs are doing it didn't know if it was simple job or not

Yes still works fine goes off when you turn off the power supply and it was given to me like that

Replaced the volume squelch knob and still no change

Got a 29 lx that was hooked up to 24 volt melted the black wire on the plug on the back of the radio checked all the protection diodes and they're fine now the radio won't turn off could it shorted out the volume squelch knob or is there somewhere else I need to check

Yes seems to be receiving on correct channel and no tx on either am and ssb

I recently purchased a cobra 135xlr in great shape clock doesn't work but it receives but doesn't transmit clicks when the mic is keyed is there a simple fix or bigger problem nothing looks blowed inside

Recently bought a cobra 135xlr base station it receives but no transmit getting a click when I keyed the mic is there any info on these radios anywhere

Figured it out wire was broken on the volume knob thanks for the help

So I checked all that is good getting power to the plug in all the protection diodes look good no burnt traces on the board still won't power on

Have a cobra 29 ltd classic with an rfx 75 won't power up I checked voltage at the back of the plug and reading nothing no protection diodes or traces blowed could there be something bad in the rfx

Has rx tx works then stops key the mic and no needle movement but rx tx light changes colors then It starts working touched up solder joints but no change any ideas where to start at

8 gauge

I run a caterpillar 988g I've got the power coming from the batteries reading 13.9 volts power at the plug I hooked up my connex 3300 non hp model with a 102 in cb antenna swrs are flat on all channels keyed up and quit working hooked up my cobra 25 and president Richard and works fine can't...

I'm running a president Richard doing around 45 watts the swr is saying on the radio 1.6 to 1.7 but on my analyzer it's saying the swr is 1.0 what should I believe?

Needing help running a 988 caterpillar loader swrs are 1.7 antenna is mounted on the cab but the cab is mounted on rubber bushings running a sirio 2000 trucker style antenna

Does this need to be converted has a 6.2 board in it any suggestions

Yea swrs are 1 and 1.2 without the amp just straight radio to antenna no amp

Have a Browning nmo 140 running a uniden with kL 203 the swrs are great with amp on when the amps off they skyrocket what's causing this?