I need to reprogram a Yaesu FTH-7009 handheld.
Downloaded vertex.zip
Found several schematics for radio interfaces, but
they disagree on whether to invert the return data or not.
Tried both.
Microphone socket seems to be three-pin, with mic on tip, ground on
ring, ?? on ****eld. Tried several variations of hookup.
No joy. SW just sez "problem with connection".
Scope shows nothing on the line...yes, used digital storage, I didn't
miss it.
Of course, the websites are Russian. Pasting into a translator
didn't help.
Can someone supply the schematic for a working interface with
exact details on wiring of the radio plug and what, if anything,
has to be done on the computer side to make the rs232 ****t open?
thanks, mike
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