Question about Radio Shack Pro-94 Scanner

2 Answers

I can't get any sound when the scanner stops on a frequency #

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  • carolinab57 Jan 30, 2010

    The only sound is from the squelch when it's turnt back of course.I hadn't been able to get anything out of it before today.I opened it up and looked inside the wires to the speaker were attached.If the speaker were burnt out then the squelch wouldn't work,would it?Thanks

  • carolinab57 Feb 01, 2010

    Yes thank you very much

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  • Radio Shack Master
  • 14,553 Answers

Since I do not know what you have or have not tried:

1. The squelch is turned down or even off?

2. If it has an earphone jack have you checked for audio that way?

3. Have you searched the RS site for tips for this problem? They have a lot of very good information there.

4. If you Google the brand/model number with "no sound" after it I think you will find this is a common problem and I remember seeing some suggestions and causes for the trouble.

Let me know as much as you can----I am here to help.

Regards, SD TECH

Posted on Jan 31, 2010

  • SD Tech
    SD Tech Jan 31, 2010

    You are able to turn the squelch down and still do not have sound; what about the headphone jack?

    The speaker could be open-----check like checking a fuse---impedance should be marked on it--4,6, 8 16 ohms etc---no reading across it means it is gone.

    The other common thing that happens is if the unit got dropped or fell over it may have caused physical damage inside the unit.

    I hope you find an open speaker--that is the most easy thing that could be wrong.

    SD TECH


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  • Master
  • 324 Answers

Turn the volume up and the squelch down, just to make sure that you are getting sound without a signal, if not then your speaker may be burned up or disconnected
if you get static when following above advice then try tuning to the NOAA weather radio, their frequencies are 162.400, 162.425, 162.450, 162.475, 162.500, 162.525, and 162.550 MHz respectively.

but if your hear a hum and clicking sound when your scanner stops then you are probably experiencing "Ghosting" a phenomon where the scanner is picking up electrical signatures or interference from other devices or even itself. or it could be someone literally sitting on their microphone. good luck, hope this helps.

nothing you can do about ghosting, there used to be a website that listed different radios and their known ghosts but I can't seem to find it.

Posted on Jan 30, 2010

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Here is the directions to store frequencies in your scanner:


Storing Known Frequencies
Into Channels

1. Press Hold. Then enter the channel number
where you want to store a frequency, then press
Func and Pgm. The channel number appears.
2. Use the number keys and to enter the
frequency (including the decimal point) you want
to store.
3. Press E to store the frequency into the channel.
Notes:
• If you entered an invalid frequency in Step 2,
Error appears and the scanner beeps three
times. Enter a valid frequency.
• The scanner automatically rounds the entered
number to the nearest valid frequency.
For example, if you enter 151.473 (MHz), your
scanner accepts it as 151.475.
• When you enter a frequency into a channel, the
scanner automatically turns on the delay
function and DLY appears. When delay is turned
on, the scanner automatically pauses scanning
Operation 2 seconds after the end of a transmission before
scanning proceeds to the next channel. To turn
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• If you enter a frequency that has already been
entered elsewhere, the scanner sounds an error
tone and displays the channel that was
duplicated. If you entered the frequency by mistake,
press then enter the correct frequency.
To enter the frequency anyway, press E to
accept.
4. To program the next channel in sequence, press
E then repeat Steps 2 and 3.

Dean
Rollin CBs

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