Hi Randy,
thank you for your answer, I also made the same hypothesis but there is
no need of an accessible point for maintenance with the cover
closed.
Just rotate the jack 90 degrees and you save an hole and a rubber
plug.
I also made another guess about a possible synthesizer accessory, never
sold.
At that time, as far as I know, no amateur transceiver had memories and
Yaesu already proved its "capabilities" with the FT-225's
memory unit accessory.
May be that somewhere, somebody have an hidden picture.....
Or just an idea to connect there a DDS to the FT-301...
About the "A" version, digital, with booster unit installed, as
visible on advertising, have you ever heard about differences with the
non-A ?
Thank a lot again.
Cheers,
Pino.
At 02.20 02/06/2020, you wrote:
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Pino,
Benvenuto.
The 3.5mm jack is an undocumented feature to break and connect to the RF
CARD directly. Why, I no idea but the schematic shows it. Patso. Perhaps
a way to use only the RF CARD and PA for factory test purposes?
The different models are low power variants but documentation does not
exist.
Cheers,
Randy
Arizona USA
