| Brand | Unbranded |
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Check the listing for details. Compact and Reliable Tool Shortwave Indicator with LED Signal Indicators. Condition: New. Listed at 51.26 USD. It is used to test the SWR of shortwave radio signals in the 3-30MHz frequency band. The input power does not exceed 50W, and the smallest LED light (>1.0 corresponds to green light) requires 5W of power, suitable for various shortwave radio devices.