Modifications to Yaesu FT-897 and Yaesu FT-857

Yaesu FT-897 TCVR
Yaesu FT-897 TCVR

Jochen DG2IAQ collected all known modifications to the Yaesu FT-897 (The Yaesu FT-857 differs only in detail, the electrical connection is practically identical) and made most of the modifications to his equipment. For any damage, which you would incur while making adjustments does not assume responsibility. Everyone makes them at their own risk.

These adjustments are described in great detail and clarity: AGC, speech processor, ALC unwanted download performance, broadcast protection, better setting of quiescent currents in the transmitting part, MURATA filter replacement, possibility to connect an electret microphone, battery circuit modification, settings in the service menu, unblocking the transmitter, programming software and TCVR power-up troubleshooting.

You can download the material .: YOUR (ZIP, 2MB):.

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Alexy
5 months ago

Thank you for the article!

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