Help? SB-101 keeps tripping into XMIT

Lazaro Munoz laz at PANIX.COM
Sun Apr 15 12:14:45 EDT 2001


Hello all,

I was having that problem (reported here), however I may have been
seems over-driving the plate current.  Read the tuning guide on page
141 and keep the meter under 40 (corresponding to 250ma) anything
higher tends to pick up stray RF (even from receive) and kicks in the
PA.  So far the problem seems to not happen if I keep below that
level.  I will update the list if returns while staying within these
guidelines.

Good luck,

--laz K2LAZ

On Sat, 14 Apr 2001, Zeiger-Guerra Family wrote:

> Newly acquired SB-101 is a great receiver.  Once rig has warmed up and I
> begin transmitting (PTT) I only hear 1 or 2 seconds of audio after releasing
> PTT and the rig trips back into XMIT.  VOX is OFF and PTT switch, etc. is OK
> (even removing microphone connector from rig has no effect).  Cleaned and
> examined both relays and tested/replaced tubes in VOX circuits.  Once this
> begins to happen, only solution is to power down (for ~10 secs).  When power
> back up, stays in RCV until next transmit.
>
> Anyone have this problem?  Ideas?  Thanks!
>
> - Stu KB1QW (Phila., PA)
> [long time reader, first time "poster" on this reflector]
>
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