When powering up the scanner, the squelch is open all the time. On digital channels, you hear a steady "burst" of squelch as the scanner is scanning. On a conventional channel, squelch is open all the time and the squelch adjusment has no effect. There are times when this problem goes away, but not for long. It always returns. VERY annoying. I have uipgraded firmware to 1.4 and tried resetting, re-initializing and re-programming again and again with no luck. Anyone seen this before?
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Re: 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.
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On all channels, or on one channel ? Some channels are "birdie" channels, check your user manual. Others are problem channels receiving false signals from computers, monitors, receivers, internet equipment, FAX machines, etc. If your in conventional mode, if in Digital mode the squelch is set by the processor, and I don't believe the squelch has any effect in that mode.
Plug the AC adapter into the
back of the scanner and into a wall electrical outlet. Screw the antenna
into the receptacle on the back of the scanner (extend the antenna to
full length for best reception).
Set the squelch level to allow
signals to be heard by turning the squelch knob counterclockwise. Rotate
the volume knob clockwise until you hear static. Slowly turn the
squelch knob clockwise until the static noise disappears.
Start programming frequencies into the scanner by pressing the "Manual" button.
Press the up arrow or down arrow key until the channel you wish to program is visible on the display.
Use the numbers on the keypad to enter the frequency for the local transmitter you wish to receive.
Press the "E" key to complete the process of entering the frequency.
Repeat steps 3 through 6 for each additional frequency you wish to monitor.
Press the "Scan" key to start
the scanning process. The scanner stops on a channel when it detects a
signal strong enough to hear over the squelch setting. Two seconds after
the signal stops, the scanning process resumes.
hi the solution to your problem is your scanner will not scan frequencies while the squelch is open you will need to open it and ajust VR1 VR2 please check these use a plastic screwdriver when ajusting be carefull not to damage any of the components goodluck
If your scanner is open squelched on one channel, try blocking that channel out. Some times a channel can get jammed if someone has a mic cue button stuck or something similar. Try locking out that particular channel and see if you get your squelch control back.
Turn the scanner on and volume up all the way, turn the squelch until you hear static, then turn the squelch down slowly until its silent, press scan, has it ever been programed? Just a thought. hope this helps..
First you'll need a list of frequencies to program. For a comprehensive database of active frequencies in your area, visit:
Once you have your freq list, power the scanner ON,and:
1. Press PGM. Then enter the channel number (1-200) where you want to store a frequency, then press PGM again. 2. Use the keys to enter the frequency (including the decimal point) you want to store. 3. Press ENT to store the frequency into the channel. Press DELAY if you want the scanner to pause 2 seconds on this channel before it proceeds to the next channel after a transmission ends. 4. To program the next channel in sequence, press PGM and repeat Steps 2 and 3.
Operation • To listen to a weak or distant station, turn SQUELCH counterclockwise. If reception is poor, turn SQUELCH clockwise to cut out weak transmissions. • If SQUELCH is adjusted so you always hear a hissing sound, the scanner will not scan or search properly.
Need the full manual for your scanner? You can download/print it here:
You can download/print the complete manual for your scanner by following the link below. It's a free download, and it provides detailed programming instructions. If you're programming a channel that is "empty" (showing 000.0000) just enter your frequency. Empty channels automatically show LOCKOUT but it clears with programming. The squelch setting will vary according to the strength of the signals you receive. Once you start scanning, turn the squelch down until scanning stops and you hear a hissing sound, then turn the control up slowly until scanning resumes.
For a comprehensive database of active frequencies in your area, visit:
If the weather band is working, the scanner should be working. To verify operation:
- Move the MODE switch to "Scanner" and power the unit ON. - Press the SVC button (chrome button below display). - Press POL (chrome button below display). - Turn the SQUELCH knob towards the left until scanning stops and you hear a hissing noise. - Turn the SQUELCH knob towards the right slowly until scanning resumes.
If the scanner stops on anything - even noise, it's working.
- Slide the MODE key to "Scanner." - Power the unit ON - Turn the SQUELCH knob to the left until you hear a hissing noise, then turn it the right - slowly - until scanning resumes. - Press HOLD. - Press E (PGM). - Press 0, 1. - Press HOLD. - Enter your first frequency, including the decimal point (EX: 156.055). - Press the E (PGM) key. - Press the UP arrow (above the SCAN key). Scanner will move to channel 02. - Enter your second frequency, including the decimal point. - Press the E (PGM) key.
You should now have two frequencies programmed. Press the SCAN key . . .
If it still will not accept programming, let me know.
Are you hearing any communications at all? Sounds to me like someone has programmed the ctcss tones for each frequency. Try programming a frequency without a tone and you should get a squelch. If not then you probably have to return to the repair shop. GOOD LUCK.
provided you turned the squelch know and it didnt help, i would trace back from the squelch control to the first and second transistor you come to and that should be the squelch circuit. if you know how to check them with an ohm meter you can find out which one it is, if not you can just replace them both for under 5 bucks.