301/401 cw problem

[Gareth Gammon]

Hello all,

My 301/401 pair has developed an interesting problem. When
operating cw, at the end of a transmission, the relay opens
but the received signal is knocked way down and a steady
tone is heard. This tone gradually fades away until finally
the full receiver audio is heard. I believe a second relay
contact opens as there is a slight click from the 401 and
the audio is restored all at once. The longer the
transmission, the louder the tone is initially and the
longer it takes to subside and restore full receiver audio.
Blocked audio can take as long as 10 seconds to be restored.
On short transmissions, such as a cq, the pair act normally
with full audio after key-up.

The twins are set up to operate in the xceive  configuration
with the 301 controlling the 401. The full crystal pack is
installed in the 401. SSB operation is normal.

Any ideas? It liveable, but annoying as the first part of
the other station's transmission is lost. This is often just
the call signs  but sometimes it's not.

Thanks for the help.

73
Gareth VE7CGG

ps. The more  I use this receiver, the more I appreciate it.
I can hear and work stations that are so far down that the s
meter never makes it "off the peg" (if there was one).
Thanks again Eddy Swaynar!!

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