The computer used for a SDR based panadapter, CWSkimmer, (using the I-Q steam
of the SDR,) and logging (N1MM, etc,) does NOT have to seriously expensive ,
nor does it need to be single use. I built my AMD Quad Core, 3.5 GHz CPU, 8 GB
RAM, machine for less than $600. Yes, it was purpose built to run PowerSDR for
the FLEX-1500 sub-receiver of my OMNI-VII and DXLab Suite or N1MM. The biggest
single problem to overcome in making CWSkimmer work was the delayed procedure
calls, that was solved by setting the sampling rate of all audio devices and
services to 2 channel, 16 bit, 48000 Hz.
See http://www.dxlabsuite.com/dxlabwiki/DDUtilPowerSDRN1MMSkimmerCommander or
Google DXLAB wiki PowerSDR N1MM CWSkimmer
I have a bill of materials which I will share. Please email AB9M at ARRL dot
NET.
73 & DX,
Gary - AB9M
-----Original Message-----
From: Rick - DJ0IP / NJ0IP
Sent: Wednesday, May 07, 2014 2:09 AM
To: 'Discussion of Ten-Tec Equipment'
Subject: Re: [TenTec] (no subject)
On the discussion between 1 or 2 computers, I think it important to point
out that if anyone wants to run the assisted class in contests AND take
advantage of all of the CW skimmer traffic, you need a pretty hefty
computer. Last year after CQWW CW, a lot of people were complaining about
their computer's slow response, due to this skimmer traffic. The last thing
we need is more programs running on it.
I also prefer to have my logging computer completely separate, AND have been
using a laptop for that for many years now, just so it stays running in the
event of a power failure. Of course a BBU would accomplish the same thing.
Upgrading my laptop to a seriously powerful one would cost more than I
personally care to spend on one that gets so little use.
So my preference would be a second computer. They come in small packages
now days, small enough to be hidden away. So all that is really needed is a
place for a second screen.
I guess each of us has our own preferences and ideas on how this ought to be
done.
Must be tough being the guy who has to decide just how the manufacturer is
going to do it.
SURE GLAD MY NAME IS NOT JOHN HENRY! ;-)
73 - Rick, DJ0IP
(Nr. Frankfurt am Main)
-----Original Message-----
From: TenTec [mailto:tentec-bounces@contesting.com] On Behalf Of K8JHR
Sent: Wednesday, May 07, 2014 7:51 AM
To: k9yc@arrl.net; Discussion of Ten-Tec Equipment
Subject: Re: [TenTec] (no subject)
Hmmm ... OK, thanks for the uptake. Of course, it would never be as
simple as all that!
I will have to read more about it because my friend did not mention such
distinctions and details, and left me with the impression the big screen was
pretty much just the little one writ large. He gave me an instruction book
written by a third party ham (not an Elecraft employee) which appears to
explain the the rig in great detail, so I will research these things more
closely.
As for TenTec... my wish list is simple:
Update the Omni VII with a second receiver, and with both receivers
based on the newer Eagle-RS366-Argonaut platform. Include an
appropriate RF or IF or whatever output would enable a large screen spectrum
scope - and while I appreciate the comments it should not run on the main
computer, I would not mind if it did, as I can always get a second computer
screen (one can, of course, have multiple screens on a single computer these
days...) - and I would like to see it have a new 5o v, 200 w PA (like Rich
DJ0IP calls for) - and it would have diversity sound in the earphones like
the Orion II does - and dual speaker outputs (er, like a stereo speaker
output), and have both USB and Serial ports - improve AGC and NR - give it
a facelift and call it
the Omni 8 - and sell loads of 'em. The large screen spectrum scope
would either update constantly like ICOM rigs or the Orion II and one could
tune the rig with a mouse on the screen.
But - skip the outboard panadapter box, and pump data right to a computer
screen or to a computer with a large screen the way a Flex radio does. All
that would get me to part with some of my hard earned brass.
Thanks for the uptake... back to the books to read what my friend forgot to
tell me!
------------------- K8JHR -----------------------
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