Question about Connex 4600 Base CB Radio

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Connex 4600 Turbo

I bought a Connex 4600 Turbo radio. Whin i hooked it up i get a lot of feed back threw my extra speaker no matter wher my mic gaun or RF Power is set.The radio was peaked and tooned at the CB shop wher i bought it.Can you help me wih this problem? P.S. The truck i drive at my work has a alarm in the dash that goes off wheni key up for a certain amount of time.

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Every tech. knows and every Connex owner Knows that once a Connex has been peaked and tuned and also had any mods done to it that the stock microphone that comes with it will not work as it should and then you will have bad feed back!! The best solution for this is buy a good Noise canceling microphone!! Such as an RK-56 or an Astatic 636-L Noice canceling microphone!! This usually will correct most of tghe feedback if not all of it!! And it will also let you keep most of your Mic gain turned uo too.

Posted on Jan 16, 2010

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I have the same radio turn talk back off and there is enough power ull have talk back through you trucks radio speakers and it needs to be hooked up to the battery with at least 12ga wire

Posted on Mar 28, 2009

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Try shutting off the echo /reverb see if that helps. Sometimes an above average swr can make the echo osccilate. Or a shop that knows what they are doing can put a cap on the echo board. Not enough voltage to drive this higher power radio can cause this also. Grounding the antenna brackets can help too. There are a few things that can cause this, trying to remember all the ones I ran itnto back in the day.

Posted on Feb 10, 2009

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Let me guess... the speaker wire for that extra speaker is about 8' long? And you like having the talkback "feature" on, too?

Posted on Mar 24, 2009

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1 Answer

I have a connex 4600 turbo with a road king 56 noise canceling mic. My mic just started making a cracklin sound in my external speaker . It also shocks and burns me. When I key up and let go it stays keyed...


Sounds to me like the RF signal is leaking into the microphone. Check the cable to the microphone and see if the ground wire is bad. Check the SWR to see if it is high. The problem you are talking about is unusual.

Jun 28, 2013 | CB Radios

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I av a connex 4600 turbo and a astatic 636 mic on it when i turn the talk on it squeals bad how do u stop it


turn down the rf gain. If that doesn't work you may want to have some one install 2 .001 caps across the tx and the dx wires in the mic.

Mar 18, 2013 | CB Radios

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turn rf gain up and the mic gain down until it stops squealing.

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Meter shows good send & receive strength but no sound from internal or Aux. speaker.


If mic is ruled out (broken connections etc) likely a cap in the audio circuit has opened--this happens a lot when a radio is stored for a long period of time.

Going to need a schematic and a meter to test the caps in the audio circuit--could also be a bad audio chip or connections at it.

SD TECH

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I have a 4600 turbo, I cannot turn my mic gain up pass 1/4 or i get major feed back


If the radio has been modded, then it probably has a lot of audio. As well if you are using a power mic, it may be too much.

You also are probably getting some common mode current. This causes RF feed back.

Last but not least, your talk back, if you have it is probably too loud. Now I do believe you can not lower the TB in this radio. It is either on or off. If this is the case, it needs to be on a switch.

  1. Adjust the gain on the radio and mic to even it out.
  2. Have some one local listen to your audio to tell you if it is loud, too loud and over modulated, or not loud at all and make adjustments based off that, you may not need to go any more then 1/4.
  3. Make sure the radio is properly grounded.
  4. Make a 10" coil with about 6-8 wraps as close to the antenna as possible. this wills top common mode.
  5. Lower or turn off talk back.
  6. If it is still getting feed back, Hold the mic cord in the center, and close your hand around it. If the RF feed back stops, then you need to put ferrite chokes on the mic cord to stop the RF.

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I have a Connex 4600 Turbo mounted in the headliner of a W900L Kenworth using Wilson 2000 twin antennas and a RK56 mic. When trying to use the "talk-back" feature all I hear is constant...


Strange. You shouldn't have a squealing problem with an RK56 noise canceling mic.

Unfortunately there is no way to change the volume of the talkback. Its too loud. The only solution is to turn the mic gain down.

The only reason you need to have talkback on is to check your audio. Make sure the echo is good and what not. After that you really don't need it on. So turn down the mic gain, then check the echo, then turn off the Talkback and turn the gain back up.

The squeal is feedback from the talkback being to loud and being heard by the mic. So the only way to solve it is to lower the volume of the talkback, (Which is not possible in this radio) lowering the mic gain(which lowers your audio level) or turning it off.

Nov 08, 2010 | Connex 4600 Base CB Radio

1 Answer

Connex 4600 turbo radio stays keyed up even with mic disconected


Bad RX/TX Transistor? I don't have a diagram for the 4600. Sorry!

Mar 28, 2010 | Connex 4600 Base CB Radio

1 Answer

My connex 4600 turbo was doing ok just not walking very well with a oil cooled aentena. i installed a wilson 2000 and a new astatic mic. now i have to turn my mike gain down or i have alot of sqeale. i...


It's probably a bad ground connection at the antenna. The coax shield needs to have a good ground (ground plane) or else you'll have RF feedback through the mic cable due to excessive RF traveling back down the outside of the coax and making the radio "hot".

Jul 13, 2009 | CB Radios

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Connex 4600 turbo the talk back


THE TALK BACK VOLUME IS CONTROLLED BY THE MIC GAIN, TRY ADJUSTING YOUR TALK BACK VOLUME ABOUT TURNING THE MIC GAIN FROM 12 OCLOCK TO 6 OCLOCK, DO NOT WORRY YOU WILL NOT LOSE ANY OUT BOUND POWER UNLESS YOU TURN THE MIC GAIN BELOW 11 OCLOCK

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Frequencies


i have a 4600 connex and if i turn the mic gain all the way up i get alot of modulation.can someone tell me how to fix that?

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