Garey,
Thanks. That may be the cause/reason for it. I normally run a
power amp (AL-811) but this morning I didn't need it. I run the
Gain at 9:00 to keep the amp from going into the red. But also I
have been controlling the transceive in the RCVR position. I'll
see what it looks like the next time I have the amp on and use the
XMTR to control the transceive. (have to increase the gain, maybe
;-) ). I was
switching between the 3 options of Transceive Mode and came up
with this anomaly. Yes, I do use the low capacitance cables.
Bob W5GU
On 5/27/11 12:23 PM, Garey Barrell wrote:
Bob
-
Sounds like a non-problem to me. First off, 'typical' GAIN
setting in TUNE is 10 - 11 O'clock where the ALC takes control, so
you're 'starving' one or more stages.
I'm guessing that since in XMTR position the XMTR sends a negative
bias down the INJ line to cut off the Preselector in the RCVR, it
changes the load on the XMTR Preselector output. Assume that you
are using an appropriate (low capacitance) INJ cable.?
73, Garey - K4OAH
Glen Allen, VA
Drake 2-B, 2-C/2-NT, 4-A, 4-B, C-Line
and TR-4/C Service Supplement CDs
<www.k4oah.com>
Bob W5GU wrote:
Something strange here. On band 3.5 XMTR
gain at 9 o'clock...in tune position It shows .3 amp in SEPARATE
position, .3 amp in RCVR position, but only .2 amp in XMTR
position. RF Tune is peaked on XMTR and Preselector is peaked on
RCVR. What am I missing here?
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