Question about Maxon MCB-40 40-Channels Handheld CB Radio

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Squelch when keying ptt

I have a helmet set up with a ptt on the handle bars. I can hear the chatter okay but when I press the ptt they cannot hear me but get a squelch noise. I am thinking I might have pinched the wires someplace.

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I would check my ptt wiring making sure the button is set so that when you push it it switches you from RX to TX. If you have a wiring diagram that would be helpful if not are you able to get one? In any event make sure the wires are not misconnected.

Posted on Sep 12, 2007

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Posted on Jan 02, 2017

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3 Answers

I bought a set of 2 way radios to keep touch with hiking partners. I've never used 2 way radios before and I'm clue,es as to how they function


If you tell us make and model, you may get a better answer. The instructions may have a better answer too.

Basically:
  1. Charge or put in batteries.
  2. Turn both radios on.
  3. Turn the volume up.
  4. Tune both radios to the same channel. Pick a channel that is quiet. Quiet means very little chatter and very little white noise. You can make a channel more quiet by increasing squelch but increasing squelch decreases range.
  5. Both radios are now listening.
  6. When you want to talk, press the talk button and say what you want to say.
  7. Remember you are just talking to anyone listening on that channel, so be nice.

Sep 03, 2015 | Radio Communications

1 Answer

Receiving other people


If it is possible you are pressing the Monitor button, your radio has a PL code set differently than the radios you are trying to communicate with . Check your programming. Possibly you need to program your radio to open squelch (aka CSQ or set the code to zero if a TalkAbout radio.) If this does not answer your question, please elaborate more and post another question.
Best regards.

Jun 14, 2013 | Radio Communications

1 Answer

The received signal will not 'overcome' the Squelch unless I press the Monitor button


Your PL is not programmed correctly between the radios. To program, hold in the PTT button while turning on the radio, it will announce the CODE. Use the PTT to walk thru the numbers and select the same number on each radio. Press the MONITOR button when you have chosen the number you want from the menu.

Following pressing the MONITOR button your radio will announce whether it is set to narrowband (12.5) or wideband (25). This setting needs to be the same on all radios also. It would be preferable to choose 12.5, as all radio users are required to change to narrowband by Jan 2013.

If reprogramming the PL does not solve the problem, you have a radio needing repair. The currently flat rate repair is around $69 for this style unit.

Best regards.

Mar 06, 2011 | Motorola Talkabout Distance DPS (10...

1 Answer

How do you perform a full reset on a kenwood tk-370


Field Programming procedure for the Kenwood TK-270 or TK-370 handhelds. Press and hold (light) & (dial) while turning on radio. Hold until (SEL) appears on the display. Pressing (SCN) allows you to program the following 1. Monitor Key Off = off 1 = Monitor momentary 2 = Monitor Lock 3 = Squelch off momentary 2. Scan Key Off = off Co = carrier operate To = Time operate 3. Dial Key Off = off On = enable 4. TA key TA = talkaround RV = Reverse Off 5. Lo Key On Off 6. Priority None 1 = fixed 2 = selected 7. Fixed Priority Channel Turn selector to channel 8. Look back time A Turn selector to time in seconds 9. Look back time B Turn selector to time in seconds 10. Revert Channel 1 = Selected 2 = Last Call 3 = Last used 4 = Selected + Talkback 5 = Priority 6 = Priority + Talkback 11. Tx Dwell time Turn selector to time in seconds 12. Drop out delay Turn selector to time in seconds 13. Time out timer Turn selector to time in seconds 14. Tot Pre-alert Turn selector to time in seconds 15. Tot Rekey time Turn selector to time in seconds 16. Tot reset time Turn selector to time in seconds 17. Squelch Level Turn selector to Squelch 18. Beep tone On Off 19. Signalling And Or 20. Battery Save On Off 21. Selectable QT On Off 22. Clr to transpond On Off 23. Del/ Add On Off Pressing (Dial) allows programming of: DTMF 24. digit time Turn selector to time in milliseconds 25. inter digit time Turn selector to time in milliseconds 26. First digit time Turn selector to time in milliseconds 27. Rise time Turn selector to time in milliseconds 28. Rise time with QT Turn selector to time in milliseconds 29. PTT ID Off 1 = connect 2 = disconnect 3 = Both 30. Dial ID On Off 31. Connect ID 32. Disconnect ID 33. # of DTMF keys on Keypad 12 16 34. DTMF hold time On Off 35. Store & send On Off 36. D key assignment Turn selector to D or time in seconds for pause 37. Dtmf Signaling Off 1 = code squelch 2 = Selective Call 38. Intermediate Code OFF A B C D E F 39. Group Code OFF A B C D E F 40. Auto Reset time Turn selector for time in Seconds 41. Call Alert/ Transpond Off 1 = 2 = 3 4 5 42. Transpond On Off Pressing (TA) will allow you to program Frequencies Use selector to choose channel Press PTT Enter Rx frequency using: - the Selector Knob to change kHz; - the Selector Knob + (light) to change MHz. If no channel is Shown press the (LO) button. Press PTT Enter Rx CTCSS code Press PTT Enter Tx Frequency as above Press PTT Enter Tx CTCSS code Press PTT 1. Option Signal Off 1 = DTMF 2 = 2-Tone 2. PTT ID On Off 3. Add/ Del 4. Busy Tx 5. Clock frequency shift 6. Power Hi Low Repeat for the other channels (you've got a 32 channel radio, so it may take a while...) <end>

Sep 16, 2010 | Kenwood Radio TK 260 360 270 370 2100 3100...

1 Answer

I have the pro 96 for about 2 years and I can hear the squelch sound but its not picking up chatter.


Try turning the squelch to minimum, press Scan, or you may have to program it. To program, Press PGM, select the channel you want, press PGM, use the number key and ./DELAY to enter the frequency including the decimal point you want to store, if you make a mistake press CLR, press the ENTER button to store it. You can get your frequency's for your state at www.RadioReference.com ...hope this was helpful..

May 15, 2010 | Radio Shack Pro-96 Scanner

1 Answer

I have the pro 96 for about 2 years and I can hear the squelch sound but its not picking up chatter.


Turn it on, press the manual button,then rotate the squelch knob until you hear silent,press scan and wait to see if you hear transmissions,if not ,you may need to re-program it, to re-program, press manual,enter the channel number,press manual,enter the frequency you want including the decimal point, press E. If you make a mistake,press CLR to erase. You can get the frequency for your state at RadioFreq.com or RadioReferance.com. hope this helps..

Mar 29, 2010 | Radio Shack Pro-96 Scanner

1 Answer

Uniden UH-013 squelch


Had an issue with this unit since new. Squelch adjusted too high. Not hearing some signals showing on meter. Solution - find a trim pot labelled "Meter" on the PC board and adjust it like a knobby squelch control. Made a big difference to the number of received stations. Down side is I need to use SQT tight squelch sometimes.

Feb 20, 2009 | Radio Communications

2 Answers

Uh049sx." BUSY" light on all the time. wont recieve


Contact a service center in your own country.
turn the squelch button down.

Oct 19, 2008 | Radio Communications

1 Answer

One way comm only


swap batteries if does not work this unit should need repair or replace, display blinking can be produced for power failure ( battery, contacts, circuits) or can be a controller issue.

Feb 07, 2008 | Motorola Talkabout T5500 (7 Channels)...

1 Answer

Tk-3100


Hi Tucaraca.

With the radio OFF, switch to CHANNEL 1, press the SQUELCH and the PTT at the same time. Turn ON the power switch while keeping the PTT and SQUELCH until the LED indicator turns RED.

Release the buttons and then press the PTT to CHANGE the FREQUENCY.

Press the PTT once each time until you get to the right frequency you desire. The 8 standard frequencies are as follows: 464.500, 464.5500, 467.7625, 467.8125, 467.8500, 467.8750,467.9000 and 467.9250 MHz. Once you get to the frequency you use, wait a few seconds and listen for the confirmation tone. Each frequency has a different confirmation tone so take note in case you need to program a second radio.

After you hear the confirmation tone, press the SQUELCH to confirm, and then press the SQUELCH again to lock the new frequency. Wait until the LED turns off, then switch off your radio.

Same procedure for CHANNEL 2.

WARNING: You must be legally licensed to use any frequency on any PLMRS such as the TK-3100 series. You must also apply for FREQUENCY COORDINATION and submit FCC form 601. FCC can impose steep fines and imprisonment if they catch anyone using an unlicensed radio on a controlled frequency. Visit FCC.GOV for more information.

Nov 27, 2007 | Kenwood TK-3100K2 (2 Channels) 2-Way Radio

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