[Lowfer] WD2XES 10 mw WOLF

Mon Oct 11 09:43:31 EDT 2010

Yes I had no success hr either
Lloyd

On Mon, Oct 11, 2010 at 1:35 PM, Bill de Carle <ve2iq at magma.ca> wrote:
> At 02:55 PM 10/10/2010 John, W1TAG wrote:
>>Per Bill's suggestion, I dropped the sound card output level by 7 dB,
>>which should give 10 milliwatts from the exciter, as everything is quite
>>linear.
>>
>>Reports are welcome!
>
> Thanks for the test signal John.
> There were no successful decodes at this power level.
>
> As expected, WOLF made its best attempt right around sunup after the
> static subsided.  It found your signal but was unable to gather up
> enough energy to bring out the message.  One has to feel that with
> some tweaking of the settings it might have worked.  I'm not sure I
> have the optimum integration period.  If we assume 1 part per billion
> frequency offset between Rx, Tx, at 137.45 Khz it would take one hour
> to produce a 180-degree phase shift.  With BPSK MS100 it only takes
> +/- 90 degrees to reach the point where adding in older data results
> in more harm than benefit: half an hour or about 19 WOLF frames.  On
> the other hand it would appear the QSB bright-ups early in the
> evening are quite short (less than half an hour), so a shorter
> integration time would be beneficial as it would be less likely to
> contaminate the coherent integration with extraneous noise.  The
> fixed integrate-and-dump blocks in WOLF's current implementation are
> troublesome because the odds of having a full integration period
> coincide optimally with when the SNR peaks are not
> favorable.  Indeed, I got up in the middle of the night to restart
> WOLF in the middle of a block, trying to shift the end of the last
> 3168-second block so it would more favorably overlap the expected SNR
> enhancement around dawn.  I didn't guess all that well on the timing,
> hi!  IMO, the best strategy for making sure you get optimum overlap
> is to use a moving or sliding average instead of a fixed
> integrate-and-dump average.  That's what we did with COHERENT/AFRICA
> and it worked well.
>
> In Stewart's early notes on WOLF he envisioned using the reference
> channel for something more than just establishing
> synchronization.  One thing we might want to try is selectively
> including past frames: keep the ones which improve SNR for the
> frequency we're trying to receive and throw away the others.  Another
> thing is to track the duration of QSB bright-ups for the signal of
> interest and dynamically adjust a sliding average interval for
> optimum enhancement.
>
> Great test, thanks again.  Now I'm kicking myself for not recording
> the overnight run so I'd have something to play with today, hi!
>
> 73,
> Bill VE2IQ
>
> P.S.  In the last block below (covering the dawn enhancement),
> interesting how WOLF prefers a different jm-index value at each end
> of the brightup period.  Any thoughts on why that happens?
>
> 2010-10-11 03:52:30 >WOLF10  -r 8100.024 -f 799.983 -t 0.1 -w 0.0000
> t:  24 f:-0.095 a:-1.0 dp: 90.5 ci:11 cj:334 *I47VJBU7/MRKK8 ?
> t:  48 f: 0.080 a: 1.0 dp: 88.3 ci: 8 cj:327 B2 49ISV3W78EBU ?
> t:  96 f:-0.015 a: 1.4 dp: 86.8 ci:11 cj:373 5/TRD9UL63E21ER ?
> t: 192 f:-0.020 pm:40.06 jm: 34 q:-13.1 -7.4 JKGD.Z YLD044F9 ?
> t: 288 f:-0.107 pm:42.87 jm:266 q:-11.7 -8.1 5J5MOUNQE6P.R7L ?
> t: 384 f: 0.039 pm:45.10 jm:153 q:-10.5 -7.4 QSY*8 B9EMCZLQM ?
> t: 480 f:-0.098 pm:50.10 jm:589 q:-10.1 -8.1 Z7A???X5P???EFZ ?
> t: 576 f:-0.020 pm:60.45 jm: 91 q: -9.4 -7.4 14A642D/SC09P53 ?
> t: 672 f:-0.059 pm:66.46 jm:836 q: -8.2 -8.8 E2RLUB1I2IZ4X1I ?
> t: 768 f:-0.020 pm:68.46 jm: 91 q: -8.1 -9.6 XKRZCWOW*Y6I47K ?
> t: 864 f: 0.039 pm:70.85 jm:153 q: -7.7 -8.3 750IS91DNEH8OKO ?
> t: 960 f:-0.078 pm:76.20 jm:551 q: -6.8 -9.1 8WZ*LVJBLIO.WA6 ?
> t:1056 f: 0.088 pm:81.10 jm:346 q: -6.9 -7.9 ..0G*39GTEM1Q32 ?
> t:1152 f:-0.010 pm:85.72 jm:532 q: -5.7 -6.0 Z4DLNTO4/5C4TA9 -
> t:1248 f:-0.068 pm:97.69 jm:364 q: -7.0 -8.5 H2GE/ZF36M3A5D6 ?
> t:1344 f:-0.068 pm:99.75 jm:364 q: -6.7 -9.2 TBWSIW9ET/TNYGG ?
> t:1440 f:-0.068 pm:107.5 jm:364 q: -6.1 -7.9 VTQ24MD28I4HO91 ?
> t:1536 f:-0.068 pm:109.9 jm:364 q: -6.0 -7.9 V.WM2G08*9E9G0W ?
> t:1632 f:-0.068 pm:110.2 jm:364 q: -5.7 -7.5 V.WM2G08*9E9G0O ?
> t:1728 f:-0.068 pm:116.1 jm:364 q: -5.5 -6.3 MTB83 9PEG8RPOA ?
> t:1824 f:-0.068 pm:121.7 jm:364 q: -5.3 -7.7 MTB83 9QHDDPYI6 ?
> t:1920 f:-0.068 pm:122.4 jm:364 q: -4.8 -7.2 MTB83 9QHDDPYI6 ?
> t:2016 f:-0.068 pm:123.2 jm:364 q: -4.5-10.0 Z*5WIOYN69FUZ6H ?
> t:2112 f: 0.000 pm:143.1 jm:693 q: -3.5 -6.8 *OBNZR*1/P3WV6Q ? <--
> t:2208 f: 0.000 pm:143.1 jm:693 q: -3.4 -8.9 FWA16D 5UHXIK7A ? <--
> t:2304 f: 0.000 pm:144.5 jm:693 q: -3.3 -7.8 8S0.E45PC*DOO0Y ? <--
> t:2400 f: 0.000 pm:145.3 jm:693 q: -2.9 -8.4  I874TF./J1T9HX ? <--
> t:2496 f: 0.020 pm:147.1 jm:786 q: -3.0 -7.6 DZOX AEZHRAYFEX ?
> t:2592 f: 0.020 pm:153.2 jm:786 q: -2.7 -6.0 QHU8R0UTEN0LN3* -
> t:2688 f: 0.000 pm:162.6 jm:693 q: -2.3 -7.4 TWZ8EZ*1/P3WV6Q ? <--
> t:2784 f: 0.000 pm:162.9 jm:693 q: -2.2 -8.0 M.15 L4V09DRAGX ? <--
> t:2880 f: 0.049 pm:168.2 jm:201 q: -2.1 -8.2 0LY.J6S/4XGWQS9 ?
> t:2976 f: 0.049 pm:171.2 jm:201 q: -2.1 -7.3 DIF24DD 9L2*E0R ?
> t:3072 f: 0.049 pm:171.9 jm:201 q: -2.0 -8.6 GEE??? W1JAG ZC ?
> t:3168 f: 0.049 pm:173.6 jm:201 q: -1.8 -7.2 DIF24DD 9L2*E0R ?
> [..]
> 2010-10-11 04:45:31 >WOLF10  -r 8100.024 -f 799.983 -t 0.1 -w 0.0000
> t:  24 f: 0.022 a: 0.9 dp: 90.0 ci:10 cj:478 I2S6QYHNFTZEZ2B ?
> t:  48 f: 0.024 a: 0.7 dp: 88.8 ci:14 cj:146 9*2386W/LBZBE13 -
> t:  96 f:-0.053 a:-0.3 dp: 83.5 ci: 7 cj:  3 M.9URA50O85T 7* ?
> t: 192 f:-0.088 pm:26.33 jm:370 q:-14.6 -9.0 T O8VO39CPEL4/G ?
> t: 288 f:-0.039 pm:39.71 jm:393 q:-12.4 -7.1 E5WY.C.4YYYJR3* ?
> t: 384 f: 0.010 pm:48.87 jm:573 q:-11.2 -7.5  L9W1/0YENR1*TH ?
> t: 480 f: 0.010 pm:49.03 jm:573 q:-11.0 -7.4 MCMN76HI1KJST*0 ?
> t: 576 f: 0.010 pm:56.72 jm:573 q:-10.2 -6.1 JY9B49 0HOXKP/O -
> t: 672 f:-0.020 pm:58.58 jm:872 q: -9.6 -8.5 9KHC4Z 5J.PIR7C ?
> t: 768 f:-0.020 pm:63.29 jm:872 q: -9.2 -8.1 YU5 K YGPMANC9X ?
> t: 864 f: 0.088 pm:81.62 jm:893 q: -7.8 -8.1 7RC4PIQ1QUZ8LOL ?
> t: 960 f: 0.088 pm:82.01 jm:893 q: -6.9 -9.2 X9ZD8ASNTSOC*1R ?
> t:1056 f: 0.088 pm:90.42 jm:893 q: -6.7 -8.4 7RCZ99HT0976H X ?
> t:1152 f: 0.020 pm:92.63 jm:147 q: -7.1 -7.8 VGWPYQDXZ*GB2GO ?
> t:1248 f: 0.020 pm:104.5 jm:812 q: -6.6 -8.4 OSWBIXQ6LQSBTQ1 ?
> t:1344 f: 0.020 pm:109.7 jm:812 q: -6.5 -8.2 0UCDOHOIIBKSX84 ?
> t:1440 f: 0.059 pm:120.2 jm:830 q: -5.8 -6.6 DU2OJ981OD680RK ?
> t:1536 f: 0.059 pm:120.3 jm:830 q: -5.8 -6.9 DU2OJ981U*GFHA  ?
> t:1632 f: 0.059 pm:125.6 jm:830 q: -5.6 -7.5 U2W/CD9QDF1*HSX ?
> t:1728 f: 0.059 pm:128.1 jm:830 q: -5.2 -7.1 NPEOJ983CD1T9YC ?
> t:1824 f: 0.059 pm:132.0 jm:830 q: -4.8 -8.1 YOC5R.6MZSJ5R 6 ?
> t:1920 f: 0.059 pm:132.5 jm:830 q: -4.9 -9.2 3LZ3KAIQOI*MO6I ?
> t:2016 f: 0.059 pm:135.3 jm:830 q: -4.6 -8.8 3LZ3KAIQOI*MO6I ?
> t:2112 f: 0.020 pm:135.9 jm:812 q: -4.0 -8.4 VXV6DQUSPBVX.T4 ?
> t:2208 f: 0.020 pm:136.2 jm:812 q: -3.7 -8.3 VXV6DQUSPBVX.T4 ?
> t:2304 f: 0.059 pm:144.0 jm:830 q: -4.0 -7.7 AZNDJLU1ZTC*RIC ?
> t:2400 f: 0.059 pm:145.4 jm:830 q: -3.8 -6.0 C4AIJAJX/TC*RIC -
> t:2496 f: 0.059 pm:147.1 jm:830 q: -3.7 -5.9 C4AIJA1UFL4GRIC -
> t:2592 f: 0.059 pm:148.9 jm:830 q: -3.4 -5.9 C4AIJA1UFL4GRIC -
> t:2688 f: 0.059 pm:159.2 jm:830 q: -3.2 -6.1 C4AIJA1UFL4GRIC -
> t:2784 f:-0.068 pm:165.2 jm:821 q: -3.2 -9.8 LQ2VMLIYV36 E3D ?
> t:2880 f:-0.068 pm:169.9 jm:821 q: -3.0 -8.4 WGLT3NM5OLTSL * ?
> t:2976 f: 0.059 pm:173.5 jm:830 q: -2.8 -7.7 1425*NA9/TC*RIC ?
> t:3072 f: 0.000 pm:183.6 jm:307 q: -2.8 -7.9 WSKIKHZGRW4RSCJ ? <--
> t:3168 f: 0.000 pm:187.7 jm:307 q: -2.6 -5.9 *..T7/89CCD*W7D - <--
> [..]
> 2010-10-11 10:52:10 >WOLF10  -r 8100.024 -f 799.983 -t 0.1 -w 0.0000
> t:  24 f: 0.006 a:-0.5 dp:108.5 ci:12 cj: 72 TTI80PHCKHXV??? ?
> t:  48 f: 0.002 a:-0.2 dp:106.4 ci: 7 cj: 49 X74B*O3.BSW3*Q5 ?
> t:  96 f: 0.093 a:-0.6 dp:103.8 ci:10 cj: 32 /7E15*MVQ7ZU8V  ?
> t: 192 f: 0.088 pm:301.5 jm:896 q:-14.5 -7.4 1YCI7ABIN*RP/AX ?
> t: 288 f: 0.029 pm:375.4 jm:737 q:-13.1 -6.1 FL2IRO/INTZK.44 ?
> t: 384 f: 0.029 pm:428.3 jm:737 q:-12.1 -7.5 1XI3734OXX87O O ?
> t: 480 f: 0.000 pm:516.3 jm:507 q: -9.6 -9.3 5/70OYZ.B.CO8AG ? <--
> t: 576 f: 0.000 pm:626.8 jm:405 q: -9.6 -8.9 ID9XVIFDI O7LLI ? <--
> t: 672 f: 0.000 pm:653.9 jm:405 q: -9.6 -8.1 ID9XVIFDI O7S4N ? <--
> t: 768 f: 0.000 pm:684.7 jm:405 q: -8.5 -9.4 QVLLGKA/SIP0OO  ? <--
> t: 864 f: 0.000 pm:698.7 jm:405 q: -8.1 -8.9 ESF4I5S1MORFPY3 ? <--
> t: 960 f: 0.000 pm:714.1 jm:405 q: -7.8 -8.5 V16TFFWO98UZBEW ? <--
> t:1056 f: 0.088 pm:775.5 jm:954 q: -7.1 -8.6 EDR.0R  555UZ3F ?
> t:1152 f: 0.000 pm:791.1 jm:405 q: -6.9 -7.7 V5BEZ*O*QO5652J ? <--
> t:1248 f: 0.000 pm:875.7 jm:405 q: -6.4 -8.0 K5*.F02KANJT8/T ? <--
> t:1344 f: 0.000 pm:890.7 jm:405 q: -6.4 -6.8 BZ7EZ*O*QO5652K ? <--
> t:1440 f: 0.000 pm:893.1 jm:405 q: -6.0 -7.0 YR7L682KANJT8/T ? <--
> t:1536 f: 0.088 pm:905.2 jm:954 q: -5.5 -7.0 MD/.N1PZZBE0G4Q ?
> t:1632 f: 0.088 pm:941.7 jm:954 q: -5.1 -5.8 0BHDFLFBZWBJO9G -
> t:1728 f: 0.000 pm:963.7 jm:405 q: -5.4 -7.7 57BL682I*7USL*R ? <--
> t:1824 f: 0.000 pm:972.2 jm:405 q: -5.1 -7.6 57BL682I*7USL*R ? <--
> t:1920 f: 0.000 pm:997.4 jm:507 q: -4.4 -8.9 5ONMKA5MZWXGI1Q ? <--
> t:2016 f: 0.088 pm: 1026 jm:954 q: -4.3 -7.5 F42*NV2G*R*W4NM ?
> t:2112 f: 0.088 pm: 1042 jm:954 q: -4.1 -8.5 ???G1WUPYVLDHCH ?
> t:2208 f: 0.088 pm: 1060 jm:954 q: -4.0 -8.0 LIPQ/GUPYVLDJG1 ?
> t:2304 f: 0.088 pm: 1069 jm:954 q: -3.7 -8.4 ???G1WUPYVLDJG1 ?
> t:2400 f: 0.088 pm: 1086 jm:954 q: -3.6 -7.7 IE6YYOUPYVLDJG1 ?
> t:2496 f: 0.088 pm: 1089 jm:954 q: -3.5 -8.5 T0J74YQ RK.R/V4 ?
> t:2592 f: 0.088 pm: 1089 jm:954 q: -3.3 -7.7 LAIC76R4ZK.R/V4 ?
> t:2688 f: 0.107 pm: 1178 jm:533 q: -3.3 -7.6 P193GJC0EPLNN7  ?
> t:2784 f: 0.107 pm: 1192 jm:533 q: -3.2 -7.1 J3S3L3LLSE4EMDP ?
> t:2880 f: 0.107 pm: 1203 jm:533 q: -3.1 -6.0 ZR*3F2R.4V8J0OX ?
> t:2976 f: 0.088 pm: 1207 jm:954 q: -2.6 -8.3 YZZFN8UPYVLDHEQ ?
> t:3072 f: 0.107 pm: 1222 jm:533 q: -2.8 -8.0 ???FXL1PCXO/ 15 ?
> t:3168 f:-0.020 pm: 1241 jm:797 q: -1.7 -8.0  NTH19 U*XDHCQS ?
>
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