Frank, Tim et al,
I'm very sorry, but when I intended to say VERY FAVORABLES the spell
corrector changed it to the opposite meaning.
In fact, before the said AGC changes, the SDR-1000 behavior in AM was
less than desirable and often I used to select USB or LSB for SW BC.
Now I find it something like optimal.
My comment about the very strong AM stations was a warning about
saturation, because I live quite close to several MW transmitters, some
of them outputting 250 Kw, and hear their programs in the phone.
So maybe something remains to be corrected, but it is installation
dependent and I don't suffer from it.
Sorry again for the confusion.
73 de Ignacio, EB4APL.
Frank Mayer wrote:
I can obviously understand that anomolies will pop up in these
alpha/beta software versions because that is what testing is all
about. I just wanted to make the powers that be are aware of the fact
that these AGC anomolies on AM have been incorporated in the latest
offical release, 1.18.0. It's interesting that you have noticed this
too, Ignacio.
From: "EB4APL" <eb4...@cembreros.jazztel.es>
To: <flexradio@flex-radio.biz>
Sent: Monday, June 08, 2009 4:28 PM
Subject: Re: [Flexradio] SVN 2797 SDR-1000
Frank, I am an early SDR-1000 user and I do some SW broadcasting
listening with it. I noticed the
SVN 2797's AGC changes that I can only describe as very unfavorables.
Even the close in MW stations sound very well with the preamp set to
anything but high, since in this case something saturates as can be
seen in the panadapter. Its carrier level is in the order of 0 dBm.
Ignacio, EB4APL
Frank Mayer wrote:
A clarification: The branch is 1.19.1 SVN 2797 and newer.
----- Original Message ----- From: Frank Mayer To:
flexradio@flex-radio.biz Sent: Sunday, June 07, 2009 2:01 PM
Subject: SVN 2797 SDR-1000
Ever since SVN 2797's AGC changes the RX AGC action has been poor
in my SDR-1000 in the AM mode. The receiver AGC has a limiting
action while listening to strong AM signals, sounding much like the
station is using an ALC type limiter when they are not. Plus the
volume level is noticeably louder. I am experiencing the same issue
with the latest official release , 1.18.0. Version 1.16.2 and SVN
2796 and earlier are just fine. I have submitted bug reports
concerning this. Now with SVN 3159 when I start Power SDR in AM
mode, the RX sounds like it's in DSB until I select a different
bandwidth, then it returns to the normal AM mode. Does anyone else
experience this with the SDR-1000? Maybe these software changes
have improved the 5000 and the 3000 but they are not working very
well with the 1000.
Frank, WA3JBT
_______________________________________________
FlexRadio Systems Mailing List
FlexRadio@flex-radio.biz
http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz
Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/
Knowledge Base: http://kc.flex-radio.com/ Homepage: http://www.flex-radio.com/
