On Mon, Oct 29, 2012 at 11:26 AM, Brian 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 side of zero aud
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 PSDR
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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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
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 soft
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 frequ
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 n
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 improve
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:
~~~
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 Dayt
right off the top of my head.
Eric Wachsmann
FlexRadio Systems
> -Original Message-
> From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
> radio.biz] On Behalf Of David Woodhead
> Sent: Saturday, May 13, 2006 8:38 PM
> To: FlexRadio@flex-radio.biz
> Subject: [Flexradio] I
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
By the way, after reading Alberto's post I took another look at the code Philip Covington sent for the DoIQCorrection routine. It seems to me that if imag[i] and real[i] are in the time domain, then this procedure is similar (if not identical) to the method Alberto recommends...
But I happened
: Wednesday, November 16, 2005 7:27 PM
To: Reflector Flex-Radio
Subject: [Flexradio] Image Rejection
What should be the image rejection of the receiver with respect to the image
at about 21 KHz offset?
Thanks!
- Jeff, WA6AHL << File: ATT00012.txt >>
<>
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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