Hi Les...good for you!
As a general comment addressing two of your questions: The "real" SDR is a
tool you'll fall in love with. However...you'll have to make somewhat of a
tradeoff from the original way of thinking. We've all used loops to
pinpoint and tune a specific frequency. That's sort of counter-productive
when you're using an SDR to capture the entire band because you usually
don't want to favor a unique channel.
So if you're doing wideband with SDR you're probably going to want to do a
Beverage or a vertical. Sounds like a Beverage is out for you. I've had
tremendous luck with a 30-foot vertical and a Perseus SDR. No amplification
needed; just a matching transformer.
It also sounds like you expect a lot of local noise. So you'll probably
want to look at a real noise-cancelling antenna.
Google Dallas Lankford's vertical antennas and some of Mark Connelly's work.
Regards,
Mark Durenberger
--------------------------------------------------
From: "Les Rayburn" <l...@highnoonfilm.com>
Sent: Monday, January 02, 2012 6:02 PM
To: <a...@nrcdxas.org>; <irca@hard-core-dx.com>; <tvf...@lists.wtfda.info>
Subject: [IRCA] Building a "state of the art" MW DX station
iAfter an absence from medium wave dxing due to a move to a new
deed-restricted QTH, I find myself itching to get serious again. While my
present home is far from idea (HOA, and high local noise levels), I'm
determined to make the best of it.
Presently, I have the following equipment available for us:
Icom 746 Pro transceiver
RF Space SDR-IQ receiver
Wellbrook AL-1530 Loop antenna
Radio Plus Quantum Phaser
LF Engineering M-601C Active Whip antenna
LF Engineering H-800 Active Whip antenna
LF Engineering N-300 Group loop isolator
My questions are numerous, but here are the general ones:
1.) To build a state of the art system, would you recommend up-grading the
SDR-IQ to the Perseus or new WinRadio SDR?
2.) Are there active whip antennas that perform better than the LF
Engineering models? (I have mounted these to my roof vents, painted them
black--and so far, no complaints from the neighbors.
3.) I have a undeveloped drainage ditch next to my home that offers the
possibility of a beverage on the ground antenna that would run N/S for
500-800 feet. What couplers would you recommend for this use?
4.) Anyone tried the LF Engineering M-607 Active Loop antenna? Pricey at
$390 but perhaps worth it?
5.) Any other station accessories that would improve things for me?
Primary interest is in domestic MW DXing, though I don't mind logging TA
signals when they "in" (rare here). Love to DX stations in the Western
part of the country most of all.
Thanks for the advice, and 73,
Les Rayburn, N1LF
Alabaster, AL (Near Birmingham)
--
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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