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Scanner Crystals

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Crystal Formulas

Bearcat scanners use a 10.8Mhz Intermediate Frequency. The formula is Channel Frequency minus 10.8Mhz divided by 3.

Radio Shack & Regency scanners use a 10.7Mhz Intermediate Frequency. The formula is Channel Frequency minus 10.8Mhz divided by 3.

Crystal Markings

77 means it was made for a Radio Shack Pro-77 and uses a 10.7 IF.


External Links

Ebay

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