SQUELCH NOISE AFTER PTT - Motorola Mag One BPR40 Two Way Radio

Your RF gain control needs to be turned all the way up to be able to receive signals and if you are on one of the HF bands like 40 meters or any HF band the squelch control needs to be all the way off! You do not use squelch on HF! When on VHF or UHF then you would rotate the squelch control just to the point that the background noise stops and go no further. Higher squelch settings will only block weak signals and your radio will be deaf! Squelch control rotated just to the point the background noise stops! NO SQUELCH ON HF. Turn the squelch all the way off on HF!

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.

you will need to ajust the variable resistor its at the rear next the ptt switch

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>

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

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.

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.

Hi,

Most standard CB microphones are 4 wires:
Audio IN (from Mic)
Speaker
PTT (TX)
Ground.



To determine which is which on the radio side:
a. the Audio IN (from Mic) would read a high resistance to ground (chassis) of CB radio;
b. the Speaker when connected to the ground would activate the receive speaker. To verify, power up the radio, squelch all the way down, when shorted to ground, speaker will produce background noise/sound;
c. when PTT (TX) is shorted to the ground, the rig will transmit and the red TX indicator will light up;
d. Ground. when tested with an Ohmmeter to the chassis will read 0 ohms.

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

Good luck and kind regards.

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.

Check if you are using the same channel and same squelch code in both radios. I´m not sure if you are talking about the PTT button, if is so, try using a audio accesory with ptt external just to be sure that your internal ptt is working or not.