K5CM FMT - Sept 16, 2009 Results


Transmit frequencies in Hz



    Wednesday evening run

     80 Meters - 3578621.008  (9:45 pm CDT)

    40 Meters - 7078604.007  (9:30 pm CDT)

    20 Meters  - 14058705.427  (8:00 pm CDT)


    Thursday morning run

     80 Meters - 3578573.108 (6:30 am CDT)

     40 Meters - 7078147.969 (6:45 pm CDT)

The Thursday morning run proved to be a little different than most of us were use to. . Doppler effects are reversed in the morning hours. Typically in the morning the F layer is moving down causing an apparent increase in frequency. The 80 meter run provided no sub 100 millihertz readings. It will be interesting to see the results of future morning runs.


The distance award again goes to Hisami copying both the 20m run and the Thursday morning 40 meter run in Tokyo. 


   Thanks to all that participated.

Stations submitting readings on all possible bands (5):





A look at all readings 10 millihertz or better:


N3FG EPA 3578621.008 3578621.01 0.002 5.59E-10
W3JW VA 3578621.008 3578621.002 -0.006 1.68E-09
KMZ KS 7078604.007 7078604 -0.007 9.89E-10
K6HGF LAX 7078604.007 7078604.015 0.008 1.13E-09
K7TT WWA 14058705.427 14058705.42 -0.009 6.40E-10




WD4GYN TN Extremely week signal for me; most of the time down in the mud....can't stay up for the 80 & 40 meter tests....Had fun Thanks,SteveWD4GYN
W6OQI LAX 20 meters east S9, west S9+15 with minimal Doppler, 40 meters S8 with a lot of Doppler,  80 meters S7 with medium Doppler here in Southern California
W0PHD MN could hardly hear 20 meter signal 40 was strong but lots of multipath in evening nice for the fellows to allow FMT on 80 in evening normal signal jumping around at sunrise on Thursday morning.
WA4FJC VA HP 3586B with GPS 10 Mhz reference.  Low Dipole antennas. Sorry to have missed the 20 M run as I got home after it was over.  Appreciate the efforts to schedule these runs.  Keep up the good work.  73 Gordon
KMZ KS Thanks, Connie, for the FMT.  I missed the 20 meter time.  The 40 meter evening signal was very weak, less than S-1.  The 80 meter evening signal was S7 with some QSB.  The morning 80 meter signal was less than S-1 but readable while the 40 meter morning signal was barely out of the noise so I had to match the BFO pitches with pitch memory instead of zero beating so that one is probably way off.
W9ZB IN Evening 20M sigs here were deep in the mud. 40M not so good, either.  80M ok.  Morning 40M sig not so good, 80M ok.  Most of my readings on the weak sigs were just guesses.
K5BTK MS The 80m signal was fair on an otherwise pretty dead band. What surprised me was how weak the 40m signal was. I faintly made out the "QST" in the call-up, but was never able to make out any of the remainder of the code. The signal was inaudible most of the time and visible only intermittently on the waterfall. I left it to Spectrum Lab to dig out whatever it could!
N2CUA WNY ok .. new rig .. FT-897D .. TXCO .. Thought I would give it another try .. I am assuming the run 2's are the AM runs on the 17th.  I wasnt going to submit, and just do the measurement and check when the results were posted, then figured, why not .. Had to figure out how to use the spreadsheet again. Not so sure about that 20 meter one ..lol 73's  Randy - N2CUA
N5DM STX Weak signals on 20/40 meters. QRM/QRN problems on all bands.TS-480S + DigiPan.
W9TJ IL 20 mtr sigs vy poor 40% copy East 30% copy West.  40 eve poor weak, fast QSB sig gone 30% of time.  80 eve sigs S9+20 some QRM. 80 morning sigs S9+20 with increase of 0.13 HZ during the run.  40 morning vy vy weak poor sigs, could not copy callup, got a few whisps of signal during run, less than 5% of sig usable. Interesting run with lots wild Doppler.  Thanks again for chance to participate.  
K6BZZ AZ 80 meter signals 4-3-9 with qsb, other sigs 5-7-9. Thanks for running the test. It will be fun to see if you get any overseas reports.
K6HGF LAX Both E & W 20 meter signals 20+ over here.  Very bad (intentional?) QRM on 80. Large error likely.
WA1ABI RI Good signals on the evening run. 40 was good in the morning and 80 was fair. My 80m morning capture was rather unusual and hard to decipher. Tnx Connie, and welcome back Marvin. 73.
KD2BD NNJ Despite a Kp index of 3, nighttime 80-meter signals appeared to be quite stable and got considerably stronger toward the end of the keydown period.
N5LUL WTX There was one certain station who must have heard the continuous tone and decided to "tune-up" with you. QRM was bad.   Will keep plugging along. Brad
K7TT WWA Solid signals on 20M but the two runs looked different. Will send captures. 40M strong but moving around. Interesting run. Nothing heard except noise on 80M.
N3FG EPA 20M signal very weak here.  40M and 80 M OK.  TNX agn for  a fun event.
AA0CL MO First time player. Good copy on all but the 2nd round on 40m in the morning (heard the announcement but lost the test tone). Unaided Elecraft K3, Butternut vertical. St. Louis, MO. 73
KA!BQP RI Added a Lucent RFG-M-RB rubidium standard to my IFR-1500/S. Signals were very good except 80 where they were just above the noise. Saw a very interesting spike on the 80 meter AM run just below the main signal. Tnx Connie.
AF9A IN Signals were pretty good Wed. night on 80M.  40 and 20  were in the noise. 
K6APW/7 OR East and west 20M both S9, slow QSB. The 40M signal also S9 with slow but sometimes deep QSB, plus some Canadian SSB. Challenge on 80M with S6 signal 120 Hertz away from S9+20 Idaho-Montana Net.
VE2IQ ON 80M run 2 was S7 but huge spread - took a guess
W3JW VA Tnx fer the test Connie. Signals on all runs were good with the 20 meter signal being the lowest (particularly when you turned the beam west!  Hi). While plenty of doppler effects were present, the massive spreads (mostly on 40 and 80 M), noticed earlier this summer, were much reduced.
K1GGI EMA K5CM was 20 over on 20, S7 on 40, and S4 on 80 for the evening runs. Missed the morning session. Thanks Connie, always look forward to these.
W6IHG VA 20m run very weak. Jerry, W6IHG
K9KK OK Used GPS disciplined RF signal Generator and SL.  Was not prepared for Doppler shift. 
7L4IOU DX 20M signal were good, better than August.  80M, I could not find signal.   40M signal strong enough.Thanks again for the chance.



 K5CM 80 meter readings ( 3578621.008Hz)


N3FG EPA 3578621.01 0.002 5.59E-10
W3JW VA 3578621.002 -0.006 1.68E-09
K1GGI EMA 3578620.99 -0.018 5.03E-09
VE2IQ ON 3578621.027 0.019 5.31E-09
WA1ABI RI 3578621.029 0.021 5.87E-09
KA1BQP RI 3578621.036 0.028 7.82E-09
W0PHD MN 3578621.055 0.047 1.31E-08
K6HGF LAX 3578620.957 -0.051 1.43E-08
WA2DVU SNJ 3578620.95 -0.058 1.62E-08
KD2BD NNJ 3578620.95 -0.058 1.62E-08
K8JQ WV 3578621.07 0.062 1.73E-08
AF9A IN 3578621.09 0.082 2.29E-08
WA4FJC VA 3578621.1 0.092 2.57E-08
N5DM STX 3578620.91 -0.098 2.74E-08
W9ZB IN 3578620.902 -0.106 2.96E-08
AA0CL MO 3578620.9 -0.108 3.02E-08
W9TJ IL 3578621.12 0.112 3.13E-08
K6BZZ AZ 3578620.885 -0.123 3.44E-08
K9KK OK 3578620.713 -0.295 8.24E-08
KMZ KS 3578621.5 0.492 1.37E-07
K6APW/7 OR 3578620.4 -0.608 1.70E-07
W6OQI LAX 3578621.715 0.707 1.98E-07



 K5CM  40 meter readings (7078604.007 Hz)


KMZ KS 7078604 -0.007 9.89E-10
K6HGF LAX 7078604.015 0.008 1.13E-09
KA1BQP RI 7078604.024 0.017 2.40E-09
WA2DVU SNJ 7078604.05 0.043 6.07E-09
N3FG EPA 7078604.05 0.043 6.07E-09
VE2IQ ON 7078604.076 0.069 9.75E-09
W3JW VA 7078604.076 0.069 9.75E-09
W9TJ IL 7078603.93 -0.077 1.09E-08
WA1ABI RI 7078604.093 0.086 1.21E-08
WA4FJC VA 7078604.1 0.093 1.31E-08
K1GGI EMA 7078604.1 0.093 1.31E-08
W6OQI LAX 7078604.119 0.112 1.58E-08
K6APW/7 OR 7078604.125 0.118 1.67E-08
K6BZZ AZ 7078604.131 0.124 1.75E-08
K8JQ WV 7078604.21 0.203 2.87E-08
W0PHD MN 7078604.229 0.222 3.14E-08
K7TT WWA 7078604.26 0.253 3.57E-08
K9KK OK 7078603.447 -0.560 7.91E-08
N5DM STX 7078604.71 0.703 9.93E-08
AA0CL MO 7078604.9 0.893 1.26E-07
N5LUL WTX 7078605 0.993 1.40E-07
W9ZB IN 7078615.725 11.718 1.66E-06




 K5CM  20 meter readings ( 14058705.427  Hz)


K7TT WWA 14058705.42 -0.009 6.40E-10
N3FG EPA 14058705.46 0.033 2.35E-09
W3JW VA 14058705.51 0.086 6.12E-09
K6BZZ AZ 14058705.34 -0.090 6.40E-09
K9KK OK 14058705.32 -0.106 7.54E-09
W9TJ IL 14058705.32 -0.107 7.61E-09
K6APW/7 OR 14058705.3 -0.127 9.03E-09
N5DM STX 14058705.58 0.153 1.09E-08
K6HGF LAX 14058705.27 -0.162 1.15E-08
WD4GYN TN 14058705.25 -0.181 1.29E-08
W6OQI LAX 14058705.23 -0.202 1.44E-08
WA1ABI RI 14058705.22 -0.209 1.49E-08
K1GGI EMA 14058705.21 -0.217 1.54E-08
KA1BQP RI 14058705.06 -0.366 2.60E-08
7L4IOU DX 14058705.04 -0.385 2.74E-08
W0PHD MN 14058705.84 0.415 2.95E-08
WA2DVU SNJ 14058704.99 -0.437 3.11E-08
W6IHG VA 14058704.72 -0.710 5.05E-08
AA0CL MO 14058706.2 0.773 5.50E-08
W9ZB IN 14058706.5 1.076 7.65E-08
VE2IQ ON 14058702.85 -2.576 1.83E-07
N5LUL WTX 14058700 -5.427 3.86E-07
N2CUA WNY 14058713.43 7.998 5.69E-07






  K5CM 80 meter readings (3578573.108  Hz)



K6BZZ AZ 3578572.985 -0.123 3.44E-08
W9TJ IL 3578573.33 0.222 6.20E-08
K9KK OK 3578572.779 -0.329 9.19E-08
W0PHD MN 3578573.532 0.424 1.18E-07
W6IHG VA 3578573.589 0.481 1.34E-07
AA0CL MO 3578573.6 0.492 1.37E-07
K5BTK MS 3578573.686 0.578 1.62E-07
W9ZB IN 3578573.765 0.657 1.84E-07
WA2DVU SNJ 3578573.77 0.662 1.85E-07
KA1BQP RI 3578573.78 0.672 1.88E-07
WA1ABI RI 3578573.857 0.749 2.09E-07
W3JW VA 3578573.879 0.771 2.15E-07
WA4FJC VA 3578573.9 0.792 2.21E-07
VE2IQ ON 3578574.349 1.241 3.47E-07
KMZ KS 3578571 -2.108 5.89E-07
N2CUA WNY 3578587.465 14.357 4.01E-06





 K5CM 40 meter readings ( 7078147.969Hz)



K6BZZ AZ 7078147.954 -0.015 2.12E-09
W3JW VA 7078147.996 0.027 3.81E-09
W0PHD MN 7078148.139 0.170 2.40E-08
VE2IQ ON 7078148.231 0.262 3.70E-08
W6IHG VA 7078148.277 0.308 4.35E-08
W9TJ IL 7078148.31 0.341 4.82E-08
K9KK OK 7078147.585 -0.384 5.43E-08
WA2DVU SNJ 7078148.363 0.394 5.57E-08
7L4IOU DX 7078147.539 -0.430 6.08E-08
K5BTK MS 7078148.518 0.549 7.76E-08
KA1BQP RI 7078148.536 0.567 8.01E-08
WA4FJC VA 7078148.6 0.631 8.91E-08
WA1ABI RI 7078148.668 0.699 9.88E-08
W9ZB IN 7078149.2 1.231 1.74E-07
N2CUA WNY 7078131.932 -16.037 2.27E-06
KMZ KS 7078131 -16.969 2.40E-06



Hear a brief audio snippet of Connie's 40 meter signal as copied by WA1ABI






Spectrograph of K5CM'S Thursday morning 80 meter signal as copied by WA1ABI






Spectrograph of K5CM's Thursday morning 80 meter signal as copied by KA1BQP







Transmitting equipment used by K5CM for this FMT:

A HP Z3801 GPS frequency source clocks a HP-3336B. A 10 db transistor amp follows and drives a 12BY7 / pair 6146. Then to the final amplifier, a Tokyo Hy-Power amp running 500 to 600 watts out on 40, and 20 meter early run. Due to amplifier problems 60 watts out on Wednesday evening 80 meters. 200 watts out on Thursday morning 80 and 40 meter runs.  There are no mixers or any device in the chain of amplifiers that might impact the accuracy of the GPS frequency source.  As a reality check,  I periodically log the frequency source against WWV and other GPS referenced sources.  I monitor each transmission with a completely separate receive system to look for any instability or short term drift. The separate system is not locked to the GPS transmitting system.

I typically see considerably less than 1 mHz difference at 10 Mhz when comparing  two Z3801's over a 10 second period. 



80-  Dipole - A 3.5 foot cage made from four wires in a box shape, sloping down from South to North (favors East, West, and North)

 40 - Standard Dipole hanging between two 80 foot towers. (favors East, West)

 20 - 4 element SteppIr 




Current W6OQI FMT transmitting equipment for this FMT:



My Transmitting setup consists of a HP Z3801 clocking a HP 3336B which drives a Johnson Viking I transmitter, the output of which is attenuated by a 6 db attenuator, to then drive an Icom PW-1 amplifier to about 500 watts. The antenna is an inverted Vee which favors north and south from the Los Angeles area.








Note: Because I put the results up quickly, there will be mistakes, so don't hesitate to point them out quickly. 






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