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Modification Sheet Yaesu FT-897
This and all of my Modification Sheet are for education purposes only
Yaesu FT 857 transceiver Links →
RF Speech Clipper for Yaesu MH-31
Rf speech clipper into yaesu's mh-31 standard microphone
Replacing Yaesu FT857 IF filters
Recently my yaesu ft857 became deaf. it turned out that the plastic enclosure of the ft857 filters over time consensated moisture which ruined the filters
Signalink USB and Yaesu FT-857D
Details how to set up the signalink usb and yaesu ft-857d for digital operation
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Rf speech clipper into yaesu's mh-31 standard microphone
Recently my yaesu ft857 became deaf. it turned out that the plastic enclosure of the ft857 filters over time consensated moisture which ruined the filters
Details how to set up the signalink usb and yaesu ft-857d for digital operation
Take off angle of horizontal antenna For horizontal polarization, the electric field will move sideways on a horizontal plane, while for vertical polarization it will oscillate up and down on a vertical plane
Build a Three-Way Antenna Switch and Displa To use a wireless relay to select one of two high current capacity power relays
Calculo da Antena Bazooka A double bazooka antenna is a combination that has a complete coaxial wave multiplied by its velocity factor and a total end-to-end length of 1/4 wave for each side affected by another driver shortening factor