I've had this probem as well, and it appeared to worsen with heat....Relay
contact issues it would appear.....73..Jordan VE6ZT
----- Original Message -----
From: "George Steube" <[email protected]>
To: "Gerald Youngblood" <[email protected]>; "Gerald Donnelly"
<[email protected]>
Cc: <[email protected]>
Sent: Monday, September 06, 2010 10:48 AM
Subject: Re: [FlexEdge] Flex 5000a--Sudden drop in noise
floor--lossofsensitvity
Hi Gerald,
I have seen the same problem using XP/2.0.8/Flex 5KA. I have inserted an
earlier email on the problem below. I am still trying to figure out if
this
is a software or hardware problem. I have a couple of test yet to run and
if you have any suggestions I would be happy to try them, unfortunately
the
problem is intermittent so it makes harder to fix.
Best regards,
George
W2GS
I am running PSDR 2.0.8/XP/3.3.2.8028. Occasionally after I transmit the
receiver noise level sensitivity drops to -150 on the pan adapter with the
received signal going down with it. Normally at my station the noise
level
sensitivity is in the -115/-120 range. I have noticed that when this
happens if I turn the preamp off the signal noise level rises to -135.
When
the unit is operating properly turning the preamp on and off has no effect
on the noise level. I have done the following to try and fix the
problem:
started/stopped PSDR with no change in sensitivity (stays at -150),
shutdown
PSDR, the computer and the radio itself and restarted no effect, along the
way I have reset the data base a number of times. When this problem
occurs
transmit is not affected. Last night I was operating on 40M SSB and this
happened I could not recover the receive sensitivity to where the rig was
operable. This morning I re-started everything and operation is normal.
I
then reset the data base and I am now waiting to see what happens. Any
ideas as to what's going on? Thanks.
George
W2GS
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This is the FlexRadio Systems e-mail Reflector called FlexEdge. It is
used for posting topics related to SDR software development and
experimentalist who are using beta versions of the software.
_______________________________________________
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[email protected]
http://mail.flex-radio.biz/mailman/listinfo/flexedge_flex-radio.biz
This is the FlexRadio Systems e-mail Reflector called FlexEdge. It is used for
posting topics related to SDR software development and experimentalist who are
using beta versions of the software.
