[Lowfer] DSCDecoder Question

[Bill & Becky]

Hi  I finally bought DSCdecoder with a suggested alternate site.  Works well 
on DGPS but as typical here the "Help Files" won't open. My computer will 
not open the "Foreign Source" software Help files.......why?  I have no 
idea.

Your VLF-LF setup antenna is what I'm aiming for.  A Zl501D and Z1203B @ 
25'.  However I have to make 2 Coaxial Chokes.  I'll use a Fair-Rite Closed 
Toroids at 3" OD with a aL of 8200. The coax will be RG-174 because of its 
small diameter.  If I use 25 Turns they will be 2.2K ohm @ 70 Khz  or   34 
Turns for 25 Khz.  To be enclosed in a plastic waterproof housing.

A question Garry  Do I need 3 Chokes?  One on each end of the antenna coax 
to the whip and/or another choke on the output of the Z1203B to the receiver 
input? Not sure about the 3rd choke after the Z1203B output.

Best DX

Bill KB9IV



----- Original Message ----- 
From: "Garry Hess" <k3siw at sbcglobal.net>
To: <lowfer at mailman.qth.net>
Sent: Thursday, March 03, 2011 11:36 AM
Subject: Re: [Lowfer] DSCDecoder Question


> Bill,
>
> I seldom buy software but I did purchase DSCDecoder in 2008. The
> "Verified by Visa" requirement caused some confusion but it was quickly
> straightened out through email exchanges with info at coaa.co.uk. The
> software handles DGPS decodes very well. Weak, noisy signals produce
> occasional false decode but they're obvious. When I bought the software
> MultiPSK had severely time-limited DGPS decode ability. As of Version
> 4.16, it's still a "professional" limited mode unless a license is
> purchased. I considered doing that at one time but found the procedure
> so complicated/unclear (sort of in line with the GUI, hi!) I gave up.
>
> While DSCDecoder has a Navtex choice SeaTTY is the best decoder I know
> of for Navtex. It's wasn't free either but well worth the cost.
>
> 73, Garry, K3SIW, EN52ta, Elgin, IL
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