[Lowfer] TAG wolf in CT

Lyle Koehler [email protected]
Thu, 25 Dec 2003 08:48:29 -0600


>At 50 Hz separation there's no chance for cross over right?

I have discovered "ghosts" from strong signals in both COHERENT BPSK and
WOLF when I screwed up on my receiver or decoder frequency settings. Perhaps
there's some significance in the fact that 50 Hz is an odd harmonic of the
baud rate. Here's what I decoded from a recording made between 1100 and 1130
UTC today. The receiver was set for 185.825 kHz with a BFO pitch of 400 Hz
in CW-R (USB) mode, which places NC at 425 Hz and TAG at 375 Hz. Nothing
found so far on TAG's frequency, but I'm still trying to re-learn what I
thought I knew about WOLF a couple of years ago. I find that I get better
decoding with the frequency range "wide open" (no -t parameter specified)
than when I limit the decoding range to the known frequency, and I haven't
figured out what that means.

E:\wolf>wolf -q 1225a.wav -f 425
WOLF version 0.61
t:  24 f: 0.134 a: 0.3 dp: 95.8 ci:13 cj:138 * 4D4K1HJB1D TH ?
t:  48 f: 0.432 a: 1.4 dp: 95.6 ci: 1 cj:380  4.???0IPTB99UI ?
t:  96 f: 0.884 a:-0.6 dp: 92.7 ci: 0 cj:143 B2AB67TXTW1FG6S ?
t: 192 f: 0.195 pm:  150 jm:840 q: -5.8 -6.3 LZMLEGNNKHHWG/A -
t: 288 f: 0.195 pm:  336 jm:840 q: -2.8 -4.7 CQ DE NC EM95TG -
t: 384 f: 0.195 pm:  470 jm:840 q: -1.4 -2.7 CQ DE NC EM95TG -
t: 480 f: 0.195 pm:  610 jm:840 q: -0.2 -1.0 CQ DE NC EM95TG -
t: 576 f: 0.195 pm:  707 jm:840 q:  0.5  0.4 CQ DE NC EM95TG -
t: 672 f: 0.195 pm:  856 jm:840 q:  1.7  1.6 CQ DE NC EM95TG -
t: 768 f: 0.195 pm: 1143 jm:840 q:  2.8  2.4 CQ DE NC EM95TG -
t: 864 f: 0.195 pm: 1263 jm:840 q:  3.4  3.2 CQ DE NC EM95TG -
t: 960 f: 0.195 pm: 1430 jm:840 q:  3.8  3.9 CQ DE NC EM95TG -
t:1056 f: 0.195 pm: 1603 jm:840 q:  4.0  4.4 CQ DE NC EM95TG -
t:1152 f: 0.195 pm: 1767 jm:840 q:  4.7  4.8 CQ DE NC EM95TG -
t:1248 f: 0.195 pm: 1893 jm:840 q:  5.2  4.9 CQ DE NC EM95TG -
t:1344 f: 0.195 pm: 2035 jm:840 q:  5.4  5.3 CQ DE NC EM95TG -
t:1440 f: 0.195 pm: 2151 jm:840 q:  5.8  5.7 CQ DE NC EM95TG -
t:1536 f: 0.195 pm: 2191 jm:840 q:  6.1  5.8 CQ DE NC EM95TG -
t:1632 f: 0.195 pm: 2239 jm:840 q:  6.4  6.0 CQ DE NC EM95TG -

Lyle, K0LR