Repairing Yaesu FT-817 Fail TX on 144 MHz

By EA3BIN

An FT-817 ceased transmission on the VHF 2m band, despite the other HF, UHF, and 50 MHz bands operating correctly. Suspecting an excess of input signal during FT-8 mode transmission, they conducted measurements with an oscilloscope, revealing a burnt-out PIN diode, identified as D3003, type HSU277, on the PA unit board. Following the replacement of this surface-mounted diode, their FT-817 resumed operation on the 144 MHz band.

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Radio Equipment/HF Transceivers/Yaesu FT-817

The title of the main category is Yaesu FT-817 and it deals mainly with Yaesu FT-817 resources. The resource has been on our site since Monday Jun 17 2024, and it has been viewed 39 times. So far no one has rated it yet. Be the first to rate it!
Last updated: 2024-06-17

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