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Navico squelch open always

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1 Answer

Ubc330crs squelch not working


Check in the menu? for a squelch on / off function.

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Navico tillerpilot tp 1800


before you do that . . .garman has a 2 prong connector id try before I did that

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The scanner is stuck in open squelch


Rotate the knob counter clockwise to close the squelch. If this does not work, remove the knob by pulling it off gently and make sure the "pot" is turning with the knob. Verify the knob and "pot" are not damaged.

Jul 19, 2010 | Uniden BC340CRS Base Scanner

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Does anyone know where I can get a unit repaired?


Were you able to get your TP20 repaired? I service these units in addition to the Navico Corus instruments and pilots. I also buy and sell units to help owners keeps their systems functional.

Tom LaMers
tlam45387@aol.com

Jun 05, 2010 | Navico Simrad Tillerpilot TP20 ()

2 Answers

My blackbox radio breaks squelch only when button is pushed.


I am familiar with radio programming software , but not your model. You could have squelch adjustments or settings that need to be set in the software end. Did you set something to mute? Can you set the signal level for the radio to open squelch? Are you able to connect to a service monitor and inject a signal and see where it does break squelch? These are things I would check.

Aug 25, 2009 | Klein Electronics Blackbox-U 2-Way Radio

1 Answer

Scanner squelch


I have a couple suggestions for you. The unit has probably gotten oxidized controls from age. Any thing with rotating contacts over a period of time will get dirty. You need to purchase some contact cleaner (Read info on the can that it is safe for plastics) and flush the squelch and volume controls. You may also have to open the unit and identify what they call 'pots' or little trimmers to clean and adjust. Set your squelch control at mid range and with an insulated tool turn the pots a little in both directions and return it to original the positon. This will clean the control and when you find the one that effects your squelch it may have drifted and need to be readjusted until you have better control on the front knob.

Feb 13, 2009 | Uniden BC350C Base Scanner

1 Answer

Radio Mic


Check the squelch on your radio thats not recieving. If there is a monitor button ( when pushed you will hear static) try pushing it.. then get someone to call you so you can check if you can hear them. On these radios you have 2 types of squelch....1 is called carrier squelch.... it basically opens when there is a strong enough signal. This lets you only hear strong signals and "squelch out" the distant ones and background static. The2nd. is "tone squelch" ... with your radio they are often called privacy tones. If you have 2 radios set with the same privacy tones you will only be able to hear each other... only radios that are transmitting with that privacy tone will be heard on your radio. Its a high frequency tone that can't be hear by the human ear that gets "embeded" with the transmitting signal. The recieving radio hears it and opens the squelch. So... if the radio thats rxing (recieving)your signal has its squelch set for just carrier squelch it will hear any signal thats strong enough to break the squech open.... basicaly any radio within a certain range. But if your radio (one with problem) has its squelch set for privacy tones you will not hear any other radios except the ones set with the same privacy tone.... the squelch will not open until it gets a tx signal with the right tone.... so if the txing (transmitting) radio is not using tone squelch but is using carrier squelch.... and the rxing radio is set for tone squelch... the rxing radio will not hear it. With tone (privacy tones/codes) squelch you need a tone to open the squelch and then the audio can be heard... with carrier squelch the squelch will open if ANY radio is within a certain range. Check the squelch setting on the problem radio... it could have a privacy tone set. Try pushing in the monitor button so you can hear static ( you want to hear everything including static) on both radios... tx on one radio at a time and listen if it can be heard on the other with the monitor button pushed. If you can't hear any audio when the broken one is transmitting then it COULD be the mic.... if you can hear both radios with the monitor button activated than the radios are txing and have tx audio and are working... if thats the case its the privacy tones that are the problem. Take care

Sep 12, 2007 | Garmin Rino 120 2-Way Radio

2 Answers

Squelch is open all the time


Often the potentometer (squelch control) becomes worn or dirty, this can be sometimes cured by spraying a WD40 or similar oil and then rapidly moving the control down and up. Do not use oil that is conductive.

Sep 11, 2007 | Radio Shack Pro-2096 Base Scanner

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