Question about Radio Shack Pro-97 Handheld Scanner
The signal received on scanners depends on a number of factors. The most important is the elevation of your location. If you are in a valley or have higher ground around you, this will screen signals from you and will reduce the number of stations you can hear.
Secondly, receivers vary enormously from one to another. The one you are using may simply be less sensitive.
Thirdly, the position and type of antenna is crucial. If you are using a directional antenna it will only pick up signal from the front and some from the back. An omni-directional antenna will allow you to pick up signals through 360 degrees. The antenna must also be as high as you can get it, especially if you are in a valley.
Some emergency services use repeaters which allow you to hear signals much further away. You may not be in range of a police repeater.
Posted on Mar 08, 2008
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