[Lowfer] WOLF!

[jrusgrove at comcast.net]

JA

Tnx WOLF signal. Even with reception off the back of the antenna it's not much of a challange at 
this distance.

t:  24 f: 0.005 a:-0.1 dp: 79.5 ci: 4 cj:278 WD2XES HNY WOLF -
t:  48 f: 0.005 a:-0.1 dp: 81.8 ci: 4 cj:278 WD2XES HNY WOLF -
t:  96 f: 0.005 a:-0.1 dp: 81.9 ci: 4 cj:278 WD2XES HNY WOLF -
t: 192 f: 0.010 pm:61.03 jm:404 q: 14.2 14.0 WD2XES HNY WOLF -
t: 288 f: 0.000 pm:178.3 jm:404 q: 19.3 19.2 WD2XES HNY WOLF -
t: 384 f: 0.000 pm:249.6 jm:404 q: 16.9 16.9 WD2XES HNY WOLF -
t: 480 f: 0.000 pm:322.7 jm:404 q: 21.5 21.4 WD2XES HNY WOLF -
t: 576 f: 0.000 pm:432.9 jm:404 q: 22.6 23.0 WD2XES HNY WOLF -
t: 672 f: 0.000 pm:461.5 jm:404 q: 23.4 23.9 WD2XES HNY WOLF -

Jay W1VD  WD2XNS  WE2XGR/2

----- Original Message ----- 
From: "John Andrews" <w1tag at charter.net>
To: "Discussion of the Lowfer (US, European, & UK) and MedFer bands" <lowfer at mailman.qth.net>
Sent: Friday, January 01, 2016 3:13 PM
Subject: [Lowfer] WOLF!


> As no year should ever go by without someone running WOLF at LF, my 2016 contribution will be made 
> tonight. WD2XES will run WOLF(10) on 137.350 kHz, starting at 2000Z. The setup is rigged to start 
> at the top of each hour, and run for 30 minutes. The second half of the hour will be used for 
> receiving, and for tuning network cool-down!
>
> For those who are new to the subject, WOLF is a BPSK mode, 10 bits per second in this case. It 
> sends a highly error-corrected 15 character message over and over, repeating every 96 seconds. The 
> text of the message is under the xmit operator's control. If you join the half hour in progress, 
> you still probably decode the signal. The point of the repetition is to "build up" the copy over a 
> long period of time, allowing weak signal reception on the order of QRSS60 detection limits.
>
> WOLF GUI software is available at:
> http://www.qsl.net/d/dl4yhf/wolf/index.html
>
> Do NOT dredge up the earlier command-line version on Stewart Nelson's site unless you are a real 
> glutton for punishment.
>
> For casual use with a "big" signal, you may just be able to run the program without any frequency 
> or sampling rate corrections. But nailing down your actual sampling rate will significantly 
> improve your luck with weak signals. Your receiver calibration should be within 1 Hz for best 
> results. Due to some changes at this end, the WD2XES frequency is about 5 milliHertz high, due to 
> DDS synthesizer round-off. The old exciter was more accurate, but is now enjoying a well-deserved 
> retirement.
>
> I'd be happy to answer any questions, and of course to get reception reports. Have fun.
>
> John, W1TAG/WD2XES
>
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