K5CM FMT - October 1, 2008 Results


Transmit frequencies in Hz


    160 Meters -  1846007.432  (9:45 pm CDT)



 K5CM FMT - 160 meter readings ( 1846007.432 Hz)


K1GGI EMA 1846007.55 10/1/2008 9:50:45 PM
W3JW VA 1846007.425 10/1/2008 9:51:18 PM
W9TJ IL 1846007.46 10/1/2008 9:51:33 PM Winner of first entry to be within 100 millihertz
W1PW AZ 1846007.53 10/1/2008 9:52:21 PM
W0PHD MN 1846007.777 10/1/2008 9:52:27 PM
W0HBK IA 1846007.5 10/1/2008 9:52:41 PM
WB3AKD VA 1846007.622 10/1/2008 9:53:38 PM
N7EP WWA 1846007.51 10/1/2008 9:55:35 PM
K6APW EB 1846007.86 10/1/2008 9:55:39 PM
N8OB OH 1846009.131 10/1/2008 9:55:49 PM
K8JQ WV 1846007.6 10/1/2008 9:56:19 PM
K8JQ WV 1846007.68 10/1/2008 9:56:48 PM
WA2DVU SNJ 0 10/1/2008 9:57:08 PM
N8OB OH 1846007.561 10/1/2008 9:57:22 PM
W6OQI LAX 1846007.36 10/1/2008 9:57:37 PM
K6OQK LAX 1846007.435 10/1/2008 9:58:00 PM
W3JW VA 1846007.426 10/1/2008 9:58:31 PM
WA1ABI RI 1846132.561 10/1/2008 10:00:23 PM
VE2IQ ON 1846007.437 10/1/2008 10:01:23 PM
W3JW VA 1846007.432 10/1/2008 10:02:18 PM Winner of absolute accuracy within 30 minutes
WB0LXZ KS 1846007.538 10/1/2008 10:05:13 PM
K9KK OK 1846007.583 10/1/2008 10:05:18 PM
W1BW EMA 1846007.575 10/1/2008 10:05:20 PM
WA3BDV EPA 1846006 10/1/2008 10:06:13 PM
W0CNN CO 1846007.431 10/1/2008 10:09:14 PM
W0CNN CO 1846007.446 10/1/2008 10:11:53 PM
W0CNN CO 1846007.438 10/1/2008 10:13:23 PM

Sort by as received.

The above list shows the entries as received. Notice that W3JW would have been the first to submit an entry within 100 millihertz, but since he submitted multiple entries with the last one counting, he improved his reading, winning the "best absolute accuracy", but giving up his "better than 100 millihertz" position to W9TJ.  Also notice that K1GGI made his submission almost 2 minutes before the end of the FMT, but missed the 100 millihertz cutoff by 18 millihertz.




 K5CM FMT - 160 meter readings ( 1846007.432 Hz)


W3JW VA 1846007.432 0.000 0.00E+00 10:02:18 PM
K6OQK LAX 1846007.435 0.003 1.63E-09 9:58:00 PM
VE2IQ ON 1846007.437 0.005 2.71E-09 10:01:23 PM
W0CNN CO 1846007.438 0.006 3.25E-09 10:13:23 PM
W9TJ IL 1846007.46 0.028 1.52E-08 9:51:33 PM
W0HBK IA 1846007.5 0.068 3.68E-08 9:52:41 PM
w6oqi LAX 1846007.36 -0.072 3.90E-08 9:57:37 PM
N7EP WWA 1846007.51 0.078 4.23E-08 9:55:35 PM
W1PW AZ 1846007.53 0.098 5.31E-08 9:52:21 PM
wb0lxz KS 1846007.538 0.106 5.74E-08 10:05:13 PM
k1ggi EMA 1846007.55 0.118 6.39E-08 9:50:45 PM
N8OB OH 1846007.561 0.129 6.99E-08 9:57:22 PM
W1BW EMA 1846007.575 0.143 7.75E-08 10:05:20 PM
K9KK OK 1846007.583 0.151 8.18E-08 10:05:18 PM
WB3AKD VA 1846007.622 0.190 1.03E-07 9:53:38 PM
K8JQ WV 1846007.68 0.248 1.34E-07 9:56:48 PM
W0PHD MN 1846007.777 0.345 1.87E-07 9:52:27 PM
K6APW EB 1846007.86 0.428 2.32E-07 9:55:39 PM
WA3BDV EPA 1846006 -1.432 7.76E-07 10:06:13 PM
WA1ABI RI 1846132.561 125.129 6.78E-05 10:00:23 PM
WA2DVU SNJ 0     9:57:08 PM

Sorted by most accurate readings.


I first thought I would run this FMT on 80 meters, but after talking to Burt we decided that 160 meters offered the least amount of Doppler, thereby making this FMT more about speed than Doppler. After reading some of the comments it appears the Doppler was as bad as anyone can remember on 160 meters last evening.... oh well.... Even so, there were still four readings better than 10 millihertz, with Jeff hitting the nail on the head, followed by Burt, Bill, and Reid.


It seems everyone had fun with this new format so I'm sure we will be doing more, at least similar to this one. Maybe next time I will not hose up the "comments" by making a last minute fix hi hi.......





Rules used in this FMT:


This FMT will be a little different. Focused at not only accuracy but speed as well.

You must submit your entry within 30 minutes after the start of the run. You can submit your entry as soon as you hear the first dit of the transmission if you want. Keep in mind that I may change frequency after I send QRL (is the frequency in use) if someone is using the frequency.


A certificate will be given to the station posting a reading nearest the transmission frequency within the 30 minute reporting period. 


A certificate will also be given to the first station posting a reading within 100 millihertz.


Up to three entry's will be allowed, but only the last one counts. You can try for both certificates, but again, only one entry is allowed (the last).  I will leave it to you to maximize your chance with multiple submissions. If you should accidentally submit more than three times, the third entry will count.



Because we are still experimenting with this format there will not be a West coast run this time.




Transmitting equipment used by K5CM for this FMT:

A Trimble Thunderbolt 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 Dentron 2500 running 500 watts on 160m. 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 WWVB.  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 but calibrated by the GPS system before the FMT.


160 - Vertical

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

 40 - Dipole (favors East, West)




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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