Hi Les,
Re: SDR-IQ vs. Perseus: you can compare them online, I have both
connected here in easternmost Finland always to same antenna, usually
400 m Bev beamed to East Asia. See: http://sdrspace.com and
http://microtelecom.it/map/PerseusServers.html . You need to install the
respective software: SDR-Radio and Perseus software.
I have Wellbrook preamp usually on, so you may notice that SDR-IQ starts
clipping a bit earlier and needs attenuation before Perseus, but
otherwise there shouldn't be very big differences. Please let me know if
you hear something on Perseus that can't be heard on SDR-IQ!
73, Mauno
3.1.2012 8:56, Nick Hall-Patch kirjoitti:
Hi Les,
There was a discussion concerning the SDR-IQ vs. the Perseus on the
Perseus Yahoo group around the end of November; look in the group
archives for details. The Perseus software seems to be rather
static, while the SDR-Radio software for RFSpace radios keeps on being
developed, and even the simpler RFSpace Spectravue software keeps
improving in fits and starts (remember that software is important in a
"software defined radio"). However, I don't think anyone would
disagree that the Perseus hardware is more crunchproof than the
SDR-IQ, in addition to the Perseus' greater bandwidth. More recent
RFSpace radios are more comparable to the Perseus, but they are
pricier. For some peculiar reason, they come complete with
electrically noisy power supplies along with the higher price.
As for antennas, the broadband Wellbrook loops do seem to be quite
resistant to local noise. I've used the ALA100 with quite a lot of
success in electrically noisy hotel rooms, suspended in a window, and
driving both conventially tuned radios and SDRs. Tacking the loop
onto your fence (the loops receive well close to the ground) will
likely give quite good results. Main problem is that loops do have a
null. Can you do two loops at right angles to each other (maybe after
verifying their lower noise level at your site before springing for
the second one), and switching between them, or even phasing them
together?
best wishes,
Nick
At 04:10 03-01-12, you wrote:
Honestly, the ability to review recordings is the biggest deterrent
to my upgrading my RF Space SDR-IQ to a Perseus. While it would be
wonderful to record the entire AM band on a given night, it would
prove nearly impossible for me to review.
I'd be interested in how much difference in performance I could
expect between the SDR-IQ and Perseus in regards to DXing the MW band.
73,
Les N1LF
Les Rayburn, Director
High Noon Film
130 1st Avenue West
Alabaster, AL 35007-8536
(205) 621-7500
(205) 621-7505 FAX
(205) 253-4867 CELL
http://www.highnoonfilm.com
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