I subjected my Flex1500 to its first contest last weekend, and several times
I noticed that there were signals moving in the wrong drection on the
display as I tuned.
They seemed to be images of stronger signals the other side of zero audio
frequency. Each time I cleared them by closing down
On Mon, Oct 29, 2012 at 11:26 AM, Brian briduff...@yahoo.co.uk wrote:
I subjected my Flex1500 to its first contest last weekend, and several
times
I noticed that there were signals moving in the wrong drection on the
display as I tuned.
They seemed to be images of stronger signals the other
I downloaded the 1350 svn this am and when I try to do a image rejection it
only goes to 12% and says it is complete.
Do you think it done or is this a issue I have?
Scott
KQ8RP
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All,
I have just been reading a review on the SDR-1000 by Peter Hart, G3SJX,
in the June 2006 issue of RadCom.
He is generally upbeat, but he has a concern about image rejection. He
is talking about v1.6.0 of the software, so maybe things have improved
since then. He says:
At 12:24 AM 8/25/2006, Ian Wade wrote:
All,
I have just been reading a review on the SDR-1000 by Peter Hart, G3SJX,
in the June 2006 issue of RadCom.
He is generally upbeat, but he has a concern about image rejection. He
is talking about v1.6.0 of the software, so maybe things have improved
At 07:03 AM 8/25/2006, Jim Lux wrote:
Then, the I/Q audio signals run through separate channels, so there's a
audio frequency dependent variation between I and Q. This is fairly
fixed, independent of
DDS frequency (not audio frequency.. it varies a lot with audio frequency)
, but is also not
From: Jim Lux [EMAIL PROTECTED]
Date: Fri, 25 Aug 2006 Time: 07:10:29
At 07:03 AM 8/25/2006, Jim Lux wrote:
Then, the I/Q audio signals run through separate channels, so there's a
audio frequency dependent variation between I and Q. This is fairly
fixed, independent of
DDS frequency (not
Jim Lux wrote:
At 12:24 AM 8/25/2006, Ian Wade wrote:
All,
I have just been reading a review on the SDR-1000 by Peter Hart, G3SJX,
in the June 2006 issue of RadCom.
He is generally upbeat, but he has a concern about image rejection. He
is talking about v1.6.0 of the software, so maybe
At 08:54 PM 8/25/2006, Robert McGwier wrote:
Jim Lux wrote:
At 12:24 AM 8/25/2006, Ian Wade wrote:
A
The simple single point calibration that's currently used works pretty
well. It's just not perfect.
This is all correct. I presume that almost everyone is using some kind of
tuning aid to
David:
We have an impulse generator we have been moving at a glacial space
towards utilizing. This impulse generator will back out the entire
chain, front end through A/D's with a few simple measurements since we
can directly measure the impulse response.
It will come but not until after
Hi all,
I'm evaluating my rig on the bench with a sig gen and have a few questions
regarding image rejection...
I am finding that the image rejection is not consistent from band to band. I
can optimize on each band with a different set of values. Is this normal? It
would be nice to be able to
What should be the image rejection of the receiver with respect to the image
at about 21 KHz offset?
Thanks!
- Jeff, WA6AHL
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