trio-kenwood auto atu-940-440-at250 (part one)
the "memory" problem that g4xjp is experiencing with his atu's will become more common as atu's will become more common as atu's get older.  in all cases, i have traced the problem to one of two areas.  
1.  problem exists on only one band.  cure:  replace the band select relay.
2.  problem exists on all band.  cure:  replace the transmit/recieve relay.

a couple of additional tips:
1.  if you don't have a 150 ohm dummy load don't attempptj to align swr bridge.
2.  good grounding is extremely important.  all mounting screws should be well snugged.  

by: don taylor   RELAYED BY...N0KGX...GENE