| Brand | Unbranded |
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Check the listing for details. Frequency Counter JK560S For Baofeng Walkie Talkie Decoder 1-30w 100-520mhz. Condition: New. Listed at 31.80 USD. 1 x JK560S Frequency Counter. This is the best tools for the signal testing and radio maintenance. Mini frequency counter. - Frequency step : 200K (digital radio signal), 1K, 100Hz. Frequency step : 200k (digital radio signal), 1k, 100Hz.