I think this thread needs a "reset"
I still don't understand how the generator gets a signal through but the antenna doesn't.
Do you have the generator cranked to max output or something?
The radio show turn up just as deaf for the generator as the antenna. ( If it's really deaf)
I don't believe that is always true. I have a FR-101R receiver that has an internal signal generator and both the Internal and my external signal generator both show on the receiver but both radios are "deaf" to hearing audio. Speakers are fine and S meter moves.
So far all of this is talked about in very vague terms. Specifics are where it's at.
How much input for what response in the radio? Ideally if you pump in -73 Dbm, the audio should be very loud and the s-meter should show S-9 ( however , you can't always depend on S-meters!).
The real "hearing test" test is at the low input sensitivity.
So, what exactly was the input and what did the s-meter show?
Also, does the FT101 have an RF or audio problem?, they can fail independently...
The internal generator is introduced at more or less the same point as the antenna. It should produce a substantial s-meter reading.
If your radio can hear -110 Dbm or so, it should work fine on an antenna. If not, your antenna or whatever is in between has a problem.