Hi folks, I thought I would share an issue and solution I’ve had:
My Elecraft T1 tuner when connected to the MTR-03 wans’t tuning any of my antennas - always coming back with a non-tune. Symptoms checked included the bypass feature, excessive RF, different antennas, leads, battery etc.
I checked the output diodes to see if it had been over driven but they seemed fine.
Whilst playing this afternoon it appears my MTR3B doesn’t provide enough RF in TUNE mode for the ATU to sufficiently auto tune (it appears to tune - all the relays click away and it hunts around but ultimately, doesn’t find a match)… So if anyone else is having issues with the T1 this could be the problem!
At the other end of the scale I found a good website for those who have over-driven the T1 and need to replace the diodes (this was my initial thought when troubleshooting)
Hope this is useful to some people.
73 de Carl (M0SER)