External S Meter SWR Power Meter Receive Display Multi-Function Expansion Meter for Yaesu FT-857/ FT-897 bee stylish hard-shell cases for Acer

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External S Meter SWR Power Meter Receive Display Multi-Function Expansion Meter for Yaesu FT-857/ FT-897 bee stylish hard-shell cases for AcerExternal S Meter SWR Power Meter Receive Display Multi Function Expansion Meter for Yaesu FT 857 FT 897 Package List: 1 External S Meter Display Meters for Yaesu FT 857 FT 897 FT 857D& FT 897D external header display setting method: Receive Display Settings 1. press (FUNC) key to enter the setup menu, enable the extended menu. 2. rotate (SELECT) to call up the setup menu item No 061(MTR ARX SEL). 3. rotate (DIAL) to select an external instrument