[1000mp] Sub Recvr

[Jerry]

New problem with my 1000MP.  Went to work split this evening for AH3D on
10m, and all of a sudden no receive through Sub-B.  Transmits okay on B.
 The B receiver will give audio for a few seconds after transmit, but
then drops out completely.  Began exploring further and discover that B
works fine (split) on 160 and 80 and kind of okay on 40.  All other
bands are the same as 10m.  Also I had never noticed before, but B's
s-meter reads about 2 s-units lower than the A meter (when tuned to the
same freq.).  Strange, huh? Anyone have any ideas?  Tnx for your assistance.
Jerry France
K7LY