it is just noise.
>
>Receive is set for post processing and tx is pre-processing.
>
>Tried different sample rates.
>
>Thanks,
>Dave Wo2X
>-- next part --
>An HTML attachment was scrubbed...
>URL:
>http://mail.flex-radio.biz/pipermail/flexra
W4ATK Jim wrote:
> Some of you will remember I have been chasing some interference here.
> Well,
> I happen to pass WWV on 5.0MHz the other day and there was my interference
> right in WWV's upper sideband.
> I now have a website up and running and there is an .mp3 of the signal,
> a
ts cutting out or it is just noise.
Receive is set for post processing and tx is pre-processing.
Tried different sample rates.
Thanks,
Dave Wo2X
-- next part --
An HTML attachment was scrubbed...
URL:
http://mail.flex-radio.biz/pipermail/flexradio_flex-radio.biz/attachment
The "dc hump" at -11025 KHz below the carrier frequency is not a design
flaw of the SDR-1000. It has little to do with the SDR-1000 itself. It
is a function of the sound card used to digitize the I/Q audio.
Consumer sound cards do not have the filtering at very low frequencies
because they are de
Rob,
I have an SDR-100 as well which I use primarily for SWL'ing. I've been
aggravated by the "DC Hump" as well and like you am wondering what can
be done about it. I also have an SDR-IQ which isn't quite as sensitive
as the SDR-1000 but works quite well and has no sign on the hump. I
know
Hey Jim, Radio Shack has a stero version for 16.99, Part no. 270-054. It has
the wrong kind of connectors, but I will bet they have some adapters. They
call it a "Ground Loop Isolator". They also have a 1:1 audio isolation
transformer in their catalog.
73 Jim, W4ATK
-Original Message-
Fro
At 04:19 PM 10/21/2007, Rob Dennison wrote:
>Hi guys,
>
>Have my SDR1k working well enough now to start tackling deeper problems.
>
>One of the first is the 11kHz DC noise. Quite a few of my friends have
>been through the shack now. They always ask about the 11kHz hump and are
>always turned off
Some of you will remember I have been chasing some interference here.
Well,
I happen to pass WWV on 5.0MHz the other day and there was my interference
right in WWV's upper sideband.
I now have a website up and running and there is an .mp3 of the signal,
a
screen shot of the SDR-10
else noticed this? Suggestions?
Thanks,
Craig, AE7I
-- next part --
An HTML attachment was scrubbed...
URL:
http://mail.flex-radio.biz/pipermail/flexradio_flex-radio.biz/attachments/20071021/e4177c35/attachment.html
___
Flex
Rob,
What was a signicant 11 kHz problem on my SDR-1000 (mainly due to my
second-floor shack and lousy Central Texas ground) is nonexistent on my
FLEX-5000A. Spurs? Yep, a few small ones I can see with the antenna
connector terminated but deep in the noise with the antenna connected. I
have a w
Hi Rob,
If you are seeing aliased ghosts below the hump, you might want to check
that you've correctly nulled the image frequency - I don't have the same
ghosts you seem to have. Some experimentation should help you identify what
the problem is - personally, I would certainly find "ignoring" the
Hi guys,
Have my SDR1k working well enough now to start tackling deeper problems.
One of the first is the 11kHz DC noise. Quite a few of my friends have
been through the shack now. They always ask about the 11kHz hump and are
always turned off by my Q10241 answer: "gotta live with it." It is a
ard, WU5K
-- next part --
An HTML attachment was scrubbed...
URL:
http://mail.flex-radio.biz/pipermail/flexradio_flex-radio.biz/attachments/20071021/03b8bda0/attachment.html
___
FlexRadio mailing list
FlexRadio@flex-radio.biz
http
an interface from another computer.
>
>
>
> Dave N1IX
>
> -- next part --
> An HTML attachment was scrubbed...
> URL:
> http://mail.flex-radio.biz/pipermail/flexradio_flex-radio.biz/attachments/20071021/f74e2619/attachment.html
>
> ___
The 20/Oct Flex Radio Friends TeamSpeak
zipped mp3 (1 hour 16 minutes) is available at:
< http://www.hamsdr.com/dnld.aspx?id=687 >
or
< http://www.hamsdr.com/dnld.aspx >
Also available is the same recording, but
with a 50% tempo increase (51 minutes).
< http://www.hamsdr.com/dnld.aspx?id=68
Zack,
I can't quote a number but I know Flex uses a custom-calibrated Array
Solutions Power Meter to calibrate the units at the factory. I think Gerald
mentioned something like 2% to 3% on the power meter itself but I don't know
what the cumulative error might be and I don't know how the SWR brig
/20071021/df2577d1/attachment.html
___
FlexRadio mailing list
FlexRadio@flex-radio.biz
http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz
Archive Link: http://www.mail-archive.com/flexradio%40flex-radio.biz/
FlexRadio Knowledge Base
/20071021/f74e2619/attachment.html
___
FlexRadio mailing list
FlexRadio@flex-radio.biz
http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz
Archive Link: http://www.mail-archive.com/flexradio%40flex-radio.biz/
FlexRadio Knowledge Base: http
18 matches
Mail list logo
