[Skimmertalk] The Ultimate Skimmer Antennas

[Jeffrey Maass]

Jorge:

Tim has separate Perseus SDRs for each band.

Here is an old photo of the rack, which I guess they updated with new processors.

http://www.k3lr.com/skimmer/


73,  Jeff  K8ND

-----Original Message-----
From: Skimmertalk [mailto:skimmertalk-bounces at contesting.com] On Behalf Of Jorge Diez (CX6VM-CW5W)
Sent: Thursday, November 9, 2017 4:38 AM
To: Bob Wilson, N6TV <n6tv at arrl.net>
Cc: SkimmerTalk Reflector <skimmertalk at contesting.com>
Subject: Re: [Skimmertalk] The Ultimate Skimmer Antennas

Great Bob

And how Tim connect all this antennas to skimmer antenna connector?

All bands are receiving simultaneously or have something that is switching bands every x minutes? 

Thanks
Jorge

Enviado desde mi iPhone

> El 9 nov. 2017, a las 00:30, Bob Wilson, N6TV <n6tv at arrl.net> escribió:
> 
> My friend K3LR has temporarily re-positioned his monster antenna farm 
> in Western Pennsylvania for 6-band skimming (CW only) with the most 
> sensitive antennas imaginable.  If your skimmer picks up something on 
> these bands that the K3LR's skimmers miss, you're doing something right!
> 
> Here is Tim's summary:
> -----
> We are using the same Perseus SDRs – but using new high powered NUC 
> computers – one for each band.
> 
> You can see what K3LR is hearing:
> 
> http://www.reversebeacon.net/dxsd1/dxsd1.php?f=0&c=k3lr&t=de
> 
> The antennas hooked to the SDR RXs are:
> 
> 160- HIZ 8 circle in phase with HIZ 4 square – spaced 500 feet apart – 
> both aimed at Europe
> 
> 80- Two full size four squares spaced 5/8 wavelength – both aimed at 
> Europe
> 
> 40- 4L Yagis:  260 feet aimed at 0 degrees, 190 feet aimed at 45 
> degrees,
> 120 feet aimed at 150 degrees. ALL FED
> 
> 20- 6L Yagis:  230 feet aimed at 0 degrees, 170 feet aimed at 45 
> degrees,
> 110 feet aimed at 270 degrees, 50 feet aimed at 150 degrees. ALL FED
> 
> 15- 7L Yagis: 160 feet aimed at 0 degrees, 120 feet aimed at 45 
> degrees, 80 feet aimed at 270 degrees, 40 feet aimed at 150 degrees. 
> ALL FED
> 
> 10- 8L Yagis:  215 feet aimed at 150 degrees, 80 feet aimed at 90 
> degrees,
> 50 feet aimed at 270 degrees. ALL FED
> -----
> 
> 73,
> Bob, N6TV
> (Who is currently using a single VE3DO loop 
> <http://www.ok1rr.com/index.php/onair/8-qmgr> on all bands, but will 
> soon be experimenting with a short active dipole) 
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