Question about Radio Shack Pro-2018 Scanner

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Does not receive

All channels scan, squelch will make noise. there is no antenna but shouldn't I get weak transmissions?

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It is posible that you may get some very close signals to show up but even that is not 100%

Make sure you also have any noise blankers etc turned off as these will further reduce the signal.

Check out some of the radio ham and scanner sites like Strong Signals you should find cheap ways of making a home brew ant. for it.

Posted on Sep 09, 2009

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Posted on Jan 02, 2017

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Yaesu ft-857 squelch problem


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!

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I was given a uniden police scanner and I need to know the frequencies and how to get the static out. . Thank you . Rhonda Hansen


First thing to try is to change the "squelch" setting. If you squelch is set wrong, you will hear static all the time and the scanner may not scan. Turn the squelch until you no longer hear the static and the scanner scans.

Nov 07, 2014 | Radio Communications

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How do I adjust squelch. Squelch is locked on


I suspect you have it in the continuous monitor mode so follow the directions for getting back into the automatic squelch mode.

AUTOMATIC SQUELCH: The FRS is equipped with an automatic squelch circuitry filtering out weak transmission and unwanted noise, usually caused by terrain conditions.

MONITOR:
- This feature turns off the automatic squelch feature, either momentarily or continuously. It helps in receiving signals to its maximum range, but may pick up static signals, too.

Momentary monitor:
- Press the MON button; the monitor symbol will appear.
- Release the button to restore the automatic squelch.

Continuous monitor:
- Press the MON button for more than 2 seconds until a beep sound is heard. The monitor symbol will appear.
- To restore the automatic squelch, press and release the MON button again.

NOTE: You cannot transmit when the Monitor feature is activated.

This comes from the manual I found on-line at:
http://www.michaelknows.com/electronics/walkie-talkie-manual/

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What is a voic box on a cobra 29 ltd? What is a good antt combo four a 29 ltd?


Cobra's LTD 29 model Citizen's Band radio features the full 40 channels allowed and a heavy-duty microphone. The radio provides 4 watts of AM radio frequency output with a switchable automatic noise limiter and noise blanker. Other features include Cobra's Delta-Tune function. Making a Cobra LTD 29 hear and receive better involves making changes to the radio's settings, including the settings specific to this brand.
M/F Turn the switch labeled "NB/ANL, ANL, OFF" to the "ANL" position and try the transmission again if noise is affecting reception. "ANL" is an automatic noise limiter function and reduces noise caused by the vehicle's electrical systems and electronics.

M/F Switch to "NB/ANL" to activate the noise blanker, which may also reduce noise if you continue to have problems. It's an RF noise filtration function and will help with ignition noise.

M/F Adjust the "RF Gain" knob by turning it clockwise to increase gain in weak signal areas if you have problems hearing radio traffic.

M/F Set the "Delta-Tune" function to capture a more listenable signal and get rid of adjacent channel noise. Rotate the knob labeled "Deltatune" to the center position for best tuning. Try micro-adjustments to the left or right as well.

M/F Turn the volume up if you still can't hear and as with any CB radio, adjust the squelch if the radio is noisy when there's no traffic. Turn the knob labeled "Squelch" all the way to the left to receive all signals, including noise and turn the control clockwise until the background noise stops. You will be able to hear the strongest transmissions without having to listen to weak signals and noise.
The service manual can be found here

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1 Answer

How can i stop the squelch ive tryed turning the sqcuelch doesnt help


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).

  • 2 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.
  • 3 Start programming frequencies into the scanner by pressing the "Manual" button.
  • 4 Press the up arrow or down arrow key until the channel you wish to program is visible on the display.
  • 5 Use the numbers on the keypad to enter the frequency for the local transmitter you wish to receive.
  • 6 Press the "E" key to complete the process of entering the frequency.
  • 7 Repeat steps 3 through 6 for each additional frequency you wish to monitor.
  • 8 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.
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    Walkie talkies model gmr325-2 ic;513C-UT914 HOW DO I GET THESE TO TRANSMIT, MY HUSBAND HAS CANCER AND WE NEED THEM IN OUR BEDROOMS AND WHEN I AM OUTSIDE, TK U, TK U


    In order to get the most out of your new radio, read this reference guide completely before attempting to operate the radio.

    Turning the Radio On and Adjusting the Volume

    1) Press and hold the key to turn the radio ON.

    2) To change the volume level press the volume/monitor up or down key to increase or decrease the volume level.

    3) Press and hold the key to turn the radio OFF.

    Adjusting the Sound (Key Beeps)

    Your radio emits a beep each time one of the keys (except for the PTT button and call key) is pressed.
    The sound of the Key Beep will increase or decrease depending on the volume level setting.

    To turn OFF this beep:

    Press and hold the call key while turning ON the radio.

    To turn ON this beep:

    Turn the radio OFF and ON again.

    Choosing a Channel

    Your GMR325-2 radio has 22 channels you can use to talk to others. In order to speak to someone,
    each of you must be set to the same channel.

    To choose a channel:

    Press the channel/scan up or down key to increase or decrease the channel number displayed.

    Channel Scan Feature

    Your GMR325-2 radio has a channel Scan feature that allows you to easily Scan all 22 channels. When an active channel is detected, the unit will pause on that channel until the channel is clear. Then after a 2 second delay, the unit will continue scanning.

    Pressing PTT button while the Scan is paused on a channel will allow you to transmit on that channel.

    To turn ON channel scanning:

    Press and hold either the channel/scan up or down key. The channel number on the display
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    To turn OFF channel scanning:

    Press either the channel/scan up or down key.

    Talking on Your Radio

    To talk to others using the radio:
    1) Press and hold the PTT button and speak in a clear, normal voice about 2-3 inches away from the microphone.

    While you are transmitting the tx icon is displayed. To avoid cutting off the first part of your transmission, pause slightly after pressing the PTT button before you start talking.

    2) When you are finished speaking, release the PTT button.You can now receive incoming calls. While receiving, the rx icon is displayed.

    Transmitting a Call Alert Tone

    Your GMR325-2 radio is equipped with a call tone that will be transmitted when the call key is pressed.

    To transmit the call alert tone, press the call key.

    The tone will automatically be transmitted for a fixed length of time.

    Auto Squelch Feature

    The GMR325-2 is equipped with an automatic squelch system which shuts off weak transmissions
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    Monitor Mode Feature

    Your GMR325-2 radio allows you to listen for weak signals on the current channel at the press of a key.

    To turn ON monitor mode:

    Press and hold the volume/monitor up or down key. The rx icon will blink.

    To turn OFF monitor mode:

    Press the volume/monitor up or down key. The rx icon will stop blinking.

    Automatic Power Save Feature

    Your GMR325-2 has a unique circuit designed to dramatically extend the life of the batteries. If there is neither transmission nor an incoming call within 2 seconds, your radio switches to the Power Save mode. The radio is still able to receive transmissions in this mode.

    KEYLOCK ON/OFF

    Press and hold the call key until the "L" appears. After 1 second, the LCD will return to the channel display.
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    Note: While in keylock on mode, it will still receive transmissions.

    ROGER BEEP

    Roger Beep is a BEEP that is sent to notify the end of transmission.
    Roger Beep can be heard through the speaker when Key Beep is on.
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    To turn OFF Roger Beep: Press and hold the channel/scan up Key while turning on the radio.

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    1 Answer

    Trying to program it


    First you'll need a list of frequencies to program. For a comprehensive database of active frequencies in your area, visit:

    www.RadioReference.com

    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
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    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:

    http://support.radioshack.com/support_electronics/doc69/69290.pdf

    BillB

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    if you're only using antenna, maybe your signal is weak try using a better antenna, and aerial one.

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    This is just a guess but sounds like your antenna connection (inside the unit) has broken. If you use the antenna as a handle it will eventually break. Radio Shack will repair it for a flat fee of $40 (that was the price the last time I checked) plus shipping. Or if you are really good at soldering and have good eye sight, you can repair it your self.
    Your local radioshack should be able to send it in for repair.

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