Hi all, I have a problem with this ATU that stopped working well during a 70 cm band qso with the Yaesu FT-757D which is known to have isolation problems between the UHF and HF ranges causing false starts of the tuning procedure. Particularly it stopped working the manual activation of the tuning using the Tune button however it worked normally going on transmission on the various freq ranges perhaps going first to AM to safeguard the relays. Today I tried downloading the firmware from the PIC ROM to try reloading it but I corrupted the file and nothing worked anymore. The firmware version is 15 but trying to reload the 13 available here among the obsolete files the program starts and the keys work but it does not tune automatically even going on transmission. Would you have any suggestions on this? T
hank you 73'
Marco IZ0MFI
?
