Harold and the group:
This is good news but what you have been describing to me sounds more
like "interference". The interference is inside the computer with some
other application and/or some setting. There should be nothing in the
hardware that "warms up" and stops the audio from having glitches unless
you have a hardware problem that would make it necessary to take
soldering iron action!
Your experience of 6%-10% is exactly what I see here and things are
improved in the daily builds.
We have been making steady headway against the vagaries of the Microsoft
operating system, audio drivers, etc. The lastest build, which is made
available by me every morning on the hamsdr svn servers if there have
been source code changes in the previous 24 hours, is thing people
might want to try. I suggest this because we have swapped over to the
latest and greatest FFTW (fftw3.1.1) , which is at the heart of our
system and I have noticed that it produces different "wisdom", the code
of SSE/SSE2/3DNOW has changed and appears improved (this is the hardware
that makes Intel and AMD processors do our kind of math very quickly)
and the more folks that test my MinGW/MSYS build of the new fftw version
the happier I will be about working out the final details on the release
of 1.6.1. 1.6.1 will include the new FFTW, major improvements in
Virtual Audio Cable support (I do mean major), and final "numbers" for
the Presonus settings.
We are really doing much more testing, interim building, etc. OFF of
the web page. We are done FOREVER with releasing alpha and beta level
code via the web interface.
Has anyone published notes on HOW people can install svn, tortoisesvn,
and then download the "daily stuff"? The documentation is changed as we
go now, and there are other things that make this interesting. We do
need to document this in a "user guide to our SDR and SVN servers".
Please someone let me know if this has not been done.
Bob
Harold Bissonnet wrote:
*I had just sent off my last transmittal about seeking help with my new
radio/computer configuration and reached over to "un-mute" the radio
when guess what? For some unapparent reason, things have totally
settled down and there are NO INTERRUPTS!!!!!!!!! HOLY MOLEY folks........
However, I do have a possible reason why. I have had that particular
radio off for several days now with no power going to it what so ever.
I am fully aware that there are some stability issues with SDR-1000
during at least the first 15-20 minutes. I just never noticed them
manifest in this manner or means with any of the other machines.
Well, you all know much more than me. I still would like to see what
**it is **like running things in either of the two aforementioned
environments. One very GOOD thing is that the CPU usage is down to just
above 10% with most of the time 6-8%. What an improvement.
I will try to report back with any further developments, issues,
conflicts...........whatever. The next thing here is going to be to see
if my RFI problems still exist now that I have gone totally to Solid
State Amps (SSA). I have two, almost identical SSA's utilizing 8 - 2879
PA transistors. One is capable of just under the legal limit and the
other, due to design compromises, can achieve 800-900 watts PEP out.
Basically, there is no clinically significant difference between the
realized received signals.
After some extensive detective work, on and off the antenna, it is
apparently in the feed lines into and out of the amps. About to try
some double shielded coax and a bunch of ferrites......... WE'LL SEE
WHAT HAPPENS..........
Still looking forward to your thoughts, comment, or admonitions
regarding my initial matter. Thanks ahead of time.......
Harold
KD5RD
*
-------------- next part --------------
An HTML attachment was scrubbed...
URL:
http://mail.flex-radio.biz/pipermail/flexradio_flex-radio.biz/attachments/20060413/f1cc74d5/attachment.htm
_______________________________________________
FlexRadio mailing list
[email protected]
http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz
Archive Link: http://mail.flex-radio.biz/pipermail/flexradio_flex-radio.biz/
FlexRadio Homepage: http://www.flex-radio.com
--
AMSAT VP Engineering. Member: ARRL, AMSAT-DL, TAPR, Packrats,
NJQRP/AMQRP, QRP ARCI, QCWA, FRC. ARRL SDR Wrk Grp Chairman
Laziness is the number one inspiration for ingenuity. Guilty as charged!
