Question about Cobra Road Trip 40-Channels Handheld CB Radio

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When we push the button to talk, we get a low frequency squeal, and the other CB radios receive a squeal. We have tried adjusting the sqelch, no fix. It seems to disappear sometimes when you turn it on and off. As I am typing this the radio sounds as if it is on - static noise can be heard, yet it is turned off?

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Hi,my name is John. Welcome to FixYa. Do you hear voice in radio? May be to close to each other. Let me know how it goes. Good luck and thanks for Choosing FixYa ..John sounds like feed back from speaker.

Posted on Nov 06, 2010

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Posted on Jan 02, 2017

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1 Answer

DIGITAL S METER READING TOO HIGH WHAT VR POT TO ADJUST


please follow this steps and fix it. GOD BLESS you

    • 1
Turn on all of the devices in your sound system. Turn off any auto-equalizers on your sound system to gain fullest control over frequencies. This switch might be found on the receiver or the equalizer itself.
    • 2
Play a test song on repeat. Choose a song with both extremely high and extremely low instruments so that you have a wide frequency range to listen for.

    • 3
Listen for any obvious distortions in the highs and lows of the songs. Lower the knob on your equalizer for any distorted frequencies until the distortion disappears. Try at first to find the highest setting possible without distortion.
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Adjust all frequency ranges in relation to each other to find a pleasing blend for your room, trying not to let any one frequency range dominate the others. Use the highest non-distorting settings found in Step 3 as maximum settings, but don't be afraid to lower a booming bass or a screeching flute that disrupts the overall blend of the music.
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Play a song from a different genre to test how the EQ works for different types of music. A hip hop song will have louder lows than a string quartet, for example, so make sure your bass frequencies sound crisp on both types of music.

Nov 07, 2013 | Magnum DeltaForce CB Radio

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Galaxy 88hl frequency display only has decimal point, channel readout fine


on the face plate is a button for the counter ,try pushing it several times to see if the dot moves. As long as the channel display is reading the correct channel you should be ok but you want to correct this problem . If you can't correct it contact Galaxy and they will have a tech talk to you.

Nov 03, 2012 | Galaxy Radios DX- 88HL Base CB Radio

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Squell when i key up


Squealing sounds come from feedback. Many times is is from an adio source and speaker. Check your radio's switches and jacks to make sure that any external speaker set up in the passenger compartment of the car is connected to the "EXTERNAL SPEAKER" or "EXT SP" jack, and not into one labeled "PA". PA is for "Public Address". When the selector switch is set to "PA" instead of "CB" and the mic's Push To Talk (PTT) button is pressed, what ever sounds picked up by the mic are sent directly to the PA speaker, NOT transmitted on the CB channel. The sound is a high pitched squealing noise that is reduced or eliminated when the mic "gain" is reduced; speaker volume reduced; headphones are used or the distance between mic and speaker is increased.

The feedback can also be from "RF", or radio frequency energy. RF energy feedback is different from audio feedback in that the way to eliminate it is to properly tune or "match" the antenna to the frequency of the RF energy from the radio (in this case, about 4 watts on the low 27Mhz range). This is done by inserting an SWR meter between the transmitter's antenna connector and the antenna. Following the directions included with the meter and adjusting the physical length of the antenna's whip up or down in 1/8" increments will allow you to quickly find the lowest match possible over the range of CB frequencies.

Failure to obtain an acceptable match ratio can result in damage to the transmitter and RF burns to the operator. A match of 2:1 (two to one) is acceptable, but the lower you can get the better. Anything in the 1.5:1 (one point five to one) down to 1.1:1 (one point one to one) range is excellent - with 1.1:1 being ideal.

I hope this helps & good luck!

Jan 06, 2012 | Radio Communications

1 Answer

Galaxy dx 2547 base cb frequency drift problems


for upper ssb adjust L21 for 16.51250 mhz . adjust L22 for 16.50750 for lower ssb. you do have a frequency counter don't you ?

Jan 01, 2012 | Galaxy Radios DX-2547 40-Channels Base CB...

1 Answer

I just bought a used cobra 200 gtl dx im totally clueless to cbs could u tell me where all the controls and buttons should be



  • Hi, I can help.

  • I have uploaded a pic of the Cobra 200 and labeled each knob/switch with letters to reference.
  1. A) Noise blanker - When this switch is pushed the high pitched noises are canceled leaving a more natural sounding receive. Some like it some don't.
  2. B) High Power - This button adjusts the power output of your radio. Inside the radio the pots are adjusted for a low power setting and a high power setting.
  3. C) Roger Beep - This is a beep heard by the person you are chatting with at the end of your transmission.
  4. D) The 10+ KHz - This button when pushed jumps the frequency up 10 Kilohertz to help you better navigate frequencies.
  5. E) This is where you adjust how you are going to modulate. CW is for continuous wave or Morse Code. Unless you have a key don't worry about this setting. FM is for Frequency Modulation AKA the HAM bands. AM is for Amplitude Modulation. USB and LSB are for Upper Side Band and Lower Side Band respectively.
  6. F) is the band adjustment - Each band (A, B, C, D is a set of frequencies.
  7. G) is a dimmer and the SWR calibrate. To use the dimmer push the dim button in a rapid motion. To use the SWR calibrate side press and hold the dim/calibrate button and using the SWR knob on the right side of the radio (L).
  8. H) SWR/, S/RF - If this button is in the out position then your meter will swing as usual. Push the button in to measure SWR.
  9. I) is the volume and squelch. Volume is what is adjusted to how loud you want your speaker. Squelch you adjust to take out the unnecessary white noise.
  10. J) Mic Gain and RF gain - Mic Gain is how much gain you want to your mic. RF gain is how much of the receive you want to pick up.
  11. K) Is the fine and course adjustment that you clarify your frequencies with.
  12. L) You adjust the echo and the SWR with.
  13. M) is the channel selector.





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  • If you have any comments please feel free to leave them here.
  • Hope this helps and thank you for using FixYa.


Regards, Tony

Sep 17, 2011 | Cobra 200 GTL DX 4-Channels Base CB Radio

2 Answers

Why does my cobra 148 GTL CB give out a squeeking noise when i trasmit as heard by others receiving me ??


is this a new radio? if so then the voltage change on the vco/pll will cause a squeak. kindda like a cobra 19dx does. also like the old golden eagle squeal .. all due to the voltage being unstable.. now is it that prob or do you have talkback and its loud/bad grounds causing a squeal. that could be the case too. if you have talk back let me know there's a cure for that. contact us..we can put the talkback just lil outtaphase to stop 99% of the squeals in cobra/uniden chassis radios.

Dec 11, 2009 | Cobra 148 GTL 120-Channels Base CB Radio

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Cobra 19 DX IV out of frequency


I would definitely take it back for a re check. If the radio took a good bump perhaps it can cause it to drift off frequency. Turning the channel while holding his mic keyed does nothing but just throws a dead carrier. No value what soever. RF Gain is just to improve his reception by either lowering or raising the sensitivity of the receiver of the radio. Squelch is to silence the hissing sound you hear when no one is talking. Care must be taken to not to adjust too much or you wont hear anybody. It wont help his transmit audio at all. Recommend you get another Radio Check from someone else. He could be pulling your leg saying you don't sound good. Best regards and hope this helps some......................John.

May 27, 2009 | Cobra 19 DX IV CB Radio

1 Answer

I have a Maxon handheld cb - it squeals when keyed can not talk.


sounds like you are getting a feedback squeal.. try taking a wire and attaching to you handheld and grounding it to something.. that might work.. i know i have to have my mic on my cb grounded to my radio or i get a feedback squeal...

Jan 02, 2009 | Maxon HCB-10C CB Radio

1 Answer

Squealing Noise


Hi,

Some radios use the push to talk switch in the microphone to ground the receiver section when transmitting instead of a relay in the radio. There may be a problem with that switch, or the switching circuit in the radio itself.

If you have a PA switch make sure it is in the off position, if on it will squeal like a pig!

Oct 17, 2008 | Connex 4600 Base CB Radio

1 Answer

SSB ALIGNMENT


You'll need to connect Frequency Counter to C252 & adjust:

USB Frequency: 10.6975Mhz adjust L126 in receive mode
LSB Frequency: 10.6925Mhz adjust L127 in receive mode

May 04, 2008 | Magnum DeltaForce CB Radio

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