A blank spot in reception on my 340 while a signal is heard
While in scan mode, and it stops on a signal, like the local sheriff or anything at all, there is a consistent, regular pause in the signal. No problem on AM or FM radio. I have moved the scanner away from any source of device that emits RF, and still the same. I guess you could describe it like a regular pulse, except that it is a blank spot in reception.Thank you
Re: A blank spot in reception on my 340 while a signal...
First thing I would check is to see if you have the "Priority" Function set on. If it is on a PRI would be illuminated in the display. When this is on the scanner will pause and check you "priority" Channel every 2 seconds, even when it is stopped on a transmission. Turn off the Priority by pressing the PRI button while it is scanning. Se if theis helps,
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Squelch setting set too high perhaps, reduce the squelch until you can hear something, then turn it up slowly until it start to scan again. Radio Control Bar The row of buttons across the top of the Main screen lets you fine-tune HomePatrol-1 reception, access Help, and reenter system configuration. Button Definition Squelch Sets how strong a signal must be before HomePatrol-1 stops on it. Range Controls how many channels are selected based on your location and systems' locations. Small range settings result in fewer systems and departments selected. A selection bar lets you set the range in 2-mile increments. Each screen tap is 0.5 miles. Atten (Attenuation) Reduces signal interference if you are in an area where there are a lot of radio signals. If Attenuation is set to ON, the status indicator turns red. GPS Displays the status of a connected GPS unit. Help Displays Help text. Tap and hold to redo initial setup configuration.
You forgot to post the Make & Model of your radio scanner, as they're not all the same.
I'll use generic terms for your (unknown) radio scanner.
Have you programmed any frequencies into your scanner? If not, there's the reason for no reception.
You are required to program frequencies into your radio scanner, before it will receive anything.
If you have programmed your favourite frequencies, did you check to see if they are applicable to your area/location?, If so, then after programming, did you press the L/O key? If so you have locked out your frequency(s) from scan mode. To undo this you will need to press the Mon/Hold key during scan made, this will stop the scanner from scanning, and you can now go through each programmed channel and press L/O key so that L/O icion on the display is out, once you've completed this task, you should be able to scan and when a transmission is received, the unit will stop scanning during the transmission.
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.
It's possible that your county services have switched to a trunking system, leaving you with nothing but "dead" frequencies. To check the frequencies and systems that are currently in use in your area, visit:
If you programmed the correct frequency, you should be getting reception. Check www.RadioReference.com to verify the frequency. Otherwise, you may be too far from the transmitter to receive signals. Try your scanner in other locations, check your antenna, and try receiving the PD on another scanner.
The MARCS - Ohio Multi-Agency Radio Communications system - is a Motorola Type II SmartZone Omnilink Trunking system that utilizes APCO-25 digital transmissions. Your BC145XL is not compatible with trunking or digital systems. In order to follow the MARCS you will need one of the following scanners: GRE PSR-500, PSR-600 Radio Shack PRO-106, PRO-197, PRO-96, PRO-2096 Uniden BC250D, BC785D, BC296D, BC796D, BCD396T, BCD396T, BCD996T, BCD996XT, or the brand new HomePatrol-1
1. Be sure sure that your squelch is adjusted properly. While scanning, turn the SQUELCH control down slowly until scanning stops and you hear a hissing sound. Then slowly turn the control back up until scanning resumes. That will set a proper threshold level for the frequencies you're monitoring. 2. Be sure that signals are not blocked in your area. Topography plays a large part in VHF and UHF radio reception. A hill, a tall building, even a thick grove of trees can prevent a signal from reaching your antenna. 3. It's possible that there was just no traffic on the five freqs while you were listening. 4. Be sure that the frequencies you've programmed are assigned in your area. 5. For a comprehensive database of active frequencies in your area, visit: