September 06, 2007 Results

   30M run 8:30 PM CDT    40M run - 9:00 PM CDT        80M run -9:30 CDT

West coast run - 10:00 PM CDT 


K5CM TX Frequency :

80 Meters A -  3555501.5 Hz  

80 Meters B -  3555603.747 Hz

Difference -             102.247 Hz

40 Meters -     7055841.677 Hz

30 Meters -   10115074.772 Hz




W6OQI TX Frequency:

40 Meters - 7065545.645 Hz 





Sort by best 80 meter difference reading (102.247 Hz)

                                                               AUDIO                      RF


VE2IQ ON 102.247 0.000 0.00E+00 0.00E+00
W3JW VA 102.247 0.000 0.00E+00 0.00E+00
W6OQI CA 102.247 0.000 0.00E+00 0.00E+00
WB9FIP WI 102.247 0.000 0.00E+00 0.00E+00
W0PHD MN 102.248 0.001 1.27E-05 3.66E-10
K6OQK CA 102.245 -0.002 1.96E-05 5.62E-10
WA1ABI RI 102.245 -0.002 1.96E-05 5.62E-10
VE3OAT ON 102.244 -0.003 2.93E-05 8.44E-10
N5PWG TX 102.240 -0.007 6.85E-05 1.97E-09
KC0VSJ MO 102.210 -0.037 3.62E-04 1.04E-08
WB0LXZ KS 102.187 -0.060 5.87E-04 1.69E-08
N8OB OH 102.100 -0.147 1.44E-03 4.13E-08
K8JQ WV 102.077 -0.171 1.67E-03 4.79E-08
W5UFZ AZ 101.962 -0.285 2.79E-03 8.01E-08
KM1P MA 117.410 15.163 1.29E-01 4.26E-06



Sort by best 40 meter reading ( 7055841.677 Hz)


WA1ABI RI 7055841.639 -0.038 5.39E-09
W1PW AZ 7055841.552 -0.125 1.77E-08
VE3OAT ON 7055841.821 0.144 2.04E-08
N8OB OH 7055841.9 0.223 3.16E-08
W3JW VA 7055841.931 0.254 3.60E-08
WB9FIP WI 7055841.971 0.294 4.17E-08
W5UFZ AZ 7055841.383 -0.294 4.17E-08
WB0LXZ KS 7055841.977 0.300 4.25E-08
K8JQ WV 7055842.04 0.363 5.14E-08
N5PWG TX 7055842.05 0.373 5.29E-08
K6APW CA 7055841.2 -0.477 6.76E-08
W6OQI CA 7055841.033 -0.644 9.13E-08
K6OQK CA 7055841.024 -0.653 9.25E-08





Sort by best 30 meter reading ( 10115074.772 Hz)


W3JW VA 10115074.734 -0.038 3.76E-09
K8JQ WV 10115074.720 -0.052 5.14E-09
VE3OAT ON 10115074.828 0.056 5.54E-09
WA1ABI RI 10115074.614 -0.158 1.56E-08
N8OB OH 10115074.980 0.208 2.06E-08
K6YAZ CA 10115074.528 -0.244 2.41E-08
K6OQK CA 10115074.524 -0.248 2.45E-08
W6OQI CA 10115074.518 -0.254 2.51E-08
W1PW AZ 10115075.089 0.317 3.13E-08
WB9FIP WI 10115074.214 -0.558 5.52E-08
WB0LXZ KS 10115074.120 -0.652 6.45E-08
W5UFZ AZ 10115074.020 -0.752 7.43E-08
K6APW CA 10115073.900 -0.872 8.62E-08




Sort by best West Coast 40 meter reading ( 7065545.645 Hz )

K6OQK CA 7065545.640 -0.005 7.08E-10
W0PHD MN 7065545.520 -0.125 1.77E-08
VE3OAT ON 7065545.790 0.145 2.05E-08
KM1P MA 7065545.500 -0.145 2.05E-08
W1PW AZ 7065545.829 0.184 2.60E-08
WA1ABI RI 7065545.442 -0.203 2.87E-08
W5UFZ AZ 7065545.430 -0.215 3.04E-08
K8JQ WV 7065545.350 -0.295 4.18E-08
KC0JSJ MO 7065545.330 -0.315 4.46E-08
W3JW VA 7065545.305 -0.340 4.81E-08
K5CM OK 7065546.001 0.356 5.04E-08
N5PWG TX 7065546.140 0.495 7.01E-08
WB9FIP WI 7065545.128 -0.517 7.32E-08
WB0LXZ KS 7065551.710 6.065 8.58E-07







K5CM OK Marvin's signal was strong enough, but the Doppler turned the signal into a snake wiggling up the screen again this week. Thanks for doing the WC FMT run
K6APW CA  30M S6, 1 to 3 second period QSB, 40M S7
K6OQK CA Connie,all signals were pretty stable with the exception of 80-Meters.  Spectrum Lab crashed on me just as Marv started his WC FMT so I had to fall back to the 3586B/3336B combination only.  A good time was had by all on the WC.  Again, thanks to Pam for loaning you to us.
K6YAZ CA Good steady carrier; some difficulty at first because of QRM, but 20 Hz filter took care of that. Used marker provided by 3336 generator and measured delta.
KC0VSJ MO Couldn't hear you at all on 30M, 40M was so strong I wasn't prepared to insert a hot enough pilot.  80M was very weak, I missed the call up but the 100hz two tone was found buried in the noise and was usable. Very fine signal from West Coast tonight.
KM1P MA This will be my last Sudden FMT for a few weeks ... I have to make a sudden move" to a new QTH"
N5PWG TX This was my first attempt to measure the difference in frequency of the two-signal test using AM mode.I was surprised to see the lack of a sharp peak on the spectrum; previously, I measured the frequency of each signal (in CW mode) and subtracted to get the difference.
N8OB OH 80 meters was weak and quite noisy this evening.
VE2IQ ON Used TS850 AM mode. Hard to find: audio way down at 100 Hz, got 3 min.  Used flywheel to measure average freq
VE3OAT ON Some weird Doppler on the 40 m K5CM signal.  Still using the old Sulzer freq standard, manually adjusted with reference to WWVB.  Thanks for the FMT.
W0PHD MN did not read the FMT bulletin until 9:20PM CDT no warm up time again too late for some of the tests and my receiver was drifting on the two tone test.    Suggestion - drop e-mail to regular participants to look at your web page especially when day change.  It was just luck that I even looked at the web page...Thanks again.  Wally"
W3JW VA Conditions were average to above average with QRN . Doppler effects were moderate but  quite noticeable (both on the test signals and WWV). The the two frequency AM mode" waterfall display was nowhere near as clean and quiet as last week."
W5UFZ AZ K5CM signals vy strong all bands. W6OQI 5-6-9. Tnx fer test.......
W6OQI CA 40 meters provided the best signal tonight.  30 and 80 meters were good but not as good as 40 meters.  Over all signals are better than in the past few weeks.  The shorter days are helping.  Also it was nice to have normal 120 VAC line voltage tonight.  The old Viking 1 transmitter keying was OK tonight for the west coast FMT.
WA1ABI RI Conditions were good tonight, but heavy SSB QRM on W6OQI's 40m West coast signal. Thanks Connie & Marvin. 73.
WB0LXZ KS New timebase - bill.
WB9FIP WI Very tough 30 meter run.  Lots of Doppler tonight: over -0.4 Hz 15 minutes prior to 30 meter run.  Thanks again for the tests.





 Audio of K5CM  recorded by VE2IQ with his TS-850 in AM mode.

Audio of W6OQI recorded by K5CM

Audio of K5CM recorded by K6OQI on 80 meters. (I passed the file thru a 300 Hz filter to remove some of the noise)

Screen capture of W6OQI by K5CM. My marker is at zero (7065539 Hz).



Participants are refining their skill on the 80 meter difference measurement, with four stations hitting the "FMT nail" on the head, and more than half reading to better than .01Hz ....... Good going guys!!!


Doppler on 40 meters seemed to be giving everyone problems. Only one station copied K5CM to better than .1Hz and evidently everyone had the same problem with W6OQI, with only Burt coping to better than .1Hz. Burt is only 8 miles from Marvin so we expect him to turn in a close reading with the ground wave signal.



Stations copying K5CM 80 meter difference run to .01Hz or better


    *(zero error)



Stations copying K5CM 40 meter run to .1Hz or better 



Stations copying K5CM 30 meter run to .1Hz or better.




Stations copying W6OQI "West coast run" to .1Hz or better.






Transmitting equipment used by K5CM for this FMT:

A HP-Z3801 GPS clocks a HP-3336B and a PTS-250. A small 10 db transistor amp follows and drives a 12BY7 / pair 6146. Then to the final amplifier, a Drake L4B at 300 watts output except on 30 and 17 meters where the power is 75 watts. There are no mixers or any device in the chain of amplifiers that might impact the accuracy of the HP-Z3801.  As a reality check,  I periodically log the HP-Z3801 against WWVB.  


80 -  Cage Dipole (favors East, West, and North)

40 - Dipole (favors East, West)

30 - Dipole



Current W6OQI FMT transmitting equipment:

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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