Re: [IRCA] SDR-14 remote update

[markwa1ion@xxxxxxx]

Craig - The experiments sound encouraging if you can work out the kinks.

I think that if I had the receiver at a site that is obviously "juiced" 
towards one DX target or another (Latin America in the case of your 
south-facing shore site at WNBH), I'd do some RF recordings that could 
be offloaded from the remote-site PC drive in person at a later date or 
maybe sooner via Internet FTP (but the files might be too huge for 
that, though).

A top-of-hour +/- 3 minutes swing at 530-720 kHz and one at 720-910 
should get the ball rolling.  These tend to be Latin America happy 
hunting grounds: more apt to be aurorally-affected than the higher 
segments of the band.  You should be able to pull a gaggle of ID's out 
of a few of these 6 minute RF captures.

Much of it will be "just those dang Cubans" later into the evening, but 
you may occasionally stumble into something more exotic, especially a 
bit after sunset.

Keep us informed.  I used to have access to family houses in West 
Yarmouth and East Harwich that would have been perfect for this stuff, 
but the technology happened about 10 years too late.

Mark Connelly, WA1ION - Billerica, MA

-----Original Message-----
From: Craig Healy <bubba@xxxxxxxxxxxxxxxxxxxx>
To: badx@xxxxxxxxxxxxxx; AM-DX List <am@xxxxxxxxx>; Mailing list for 
the International Radio Club of America <irca@xxxxxxxxxxxxxxxx>
Sent: Wed, 14 Nov 2007 8:03 am
Subject: SDR-14 remote update



I've been working on setting up the SDR-14 so it can be accessed 
remotely.
Right now it's set up in New Bedford at the WNBH-1340 transmitter site.
Just a simple antenna for the moment, a ferrite loop on a tripod 
sitting on
the workbench.  It's turned to null the tower (15m/50' away).  There's 
also
a notch filter and this has brought 1340 down to equal levels with the 
1420
station a mile away.  I could hear stuff on 1360 last night.

So far the SDR server program has produced only very choppy and unusable
audio.  I have been able to run it by using the regular Spectravue 
program
through PCAnywhere.  Audio is delivered by a streaming audio encoder.

For a simple inside loop, results from that site have been *very*
interesting.  SS on about every channel from 530 to 820, including way 
over
WABC-770 and WOR-710 and under/over CKAC-730 among others.  The loop is
nulling NYC as well as the local tower, it seems.

I'm working with some people to try to resolve the audio and control 
glitch.
If it can be made to work, this could be a real bonus.  Picture one
permanently at Grayland or Newfoundland...

Craig Healy
Providence, RI



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