K5CM FMT - August 19, 2008 Results


Transmit frequencies in Hz


    160 Meters -  1846258.624 (10 pm CDT)

    80 Meters  - 3567028.163 (9:45 pm CDT)

    40 Meters - 7067009.939   (9:30 pm CDT)



      80 Meters - 3565165.528 (10:50 pm CDT) 

      40 Meters - Equipment problems (10:30 pm CDT) 




Although I don't usually make note of speed in submitting results, it is interesting to see how fast some report results. K8JQ submitted 3 good readings 4 minutes after the end of the 160m run. N8OB submitted 3 good readings 9 minutes after the end of the 160m run.   

Stations submitting readings on all possible bands (4):




Stations copying  2 readings to 10 millihertz or better in the last six FMT's:



Stations copying  2 readings to 10 millihertz or better:


A look at all readings 10 millihertz or better:


WA1ABI RI 1846258.624 1846258.624 0.000 0.00E+00
N7EP WWA 1846258.624 1846258.625 0.001 5.42E-10
VE2AZX QC 3567028.163 3567028.166 0.003 8.41E-10
W9TJ IL 1846258.624 1846258.622 -0.002 1.08E-09
WB9FIP WI 7067009.939 7067009.947 0.008 1.13E-09
WB9FIP WI 1846258.624 1846258.627 0.003 1.62E-09
K1GGI EMA 1846258.624 1846258.621 -0.003 1.62E-09
K6OQK LAX 1846258.624 1846258.620 -0.004 2.17E-09
W3JW VA 1846258.624 1846258.619 -0.005 2.71E-09
W9TJ IL 3567028.163 3567028.153 -0.010 2.80E-09
VE2IQ ON 1846258.624 1846258.630 0.006 3.25E-09
W6OQI LAX 1846258.624 1846258.630 0.006 3.25E-09
VE2AZX QC 1846258.624 1846258.616 -0.008 4.33E-09
K5CM OK 3565165.528 3565165.523 -0.005 1.40E-09
K6OQK* LAX 3565165.528 3565165.521 -0.007 1.96E-09
WA1ABI RI 3565165.528 3565165.518 -0.010 2.80E-09

*K6OQK is in ground wave/direct, range of W6OQI



N8OB OH I never saw so much freq movement on 40M as I did tonite. It scared me with trying to take a reading. Lots of fun as usual.
WA2DVU SNJ good signals to NJ - 160 was the weakest though - s2, others were s9 - 10/9.
WM5Z NM Receiver is an FT-950AT stock. The software I used is FLDigi running in Frequency Analysis mode. My antenna is a multi-element dipole. The signals were very good from K5CM. Very strong on 40 meters equaling around S9 +20. Nearly the same for 80 meters at S9 +10 and 160 meters was right at S9. Nice job! hope everyone did well. This is my first FMT with this group.

Hey Steve, good to have you in the group, Connie


W2FD WPA Did not hear W6OQI on 40 meters--W6OQI signal on 80 meters weak. Frequency measurements made to nearest Hz.using TS-450S only with TCXO,CW/Reverse CW, 1Hz. frequency step and 10 MHz. WWV for  correction.  Thanks for your efforts producing the FMT Test.
W5UFZ AZ No copy 160 meter sig; nothing heard from W6OQI on 40. W6OQI 80 meter sig very weak and changing freq +/- .25 Hz. Lots of something going on. Thanks for running the test.    .7300 de Dick in AZ
WA1ABI RI Nil from Marvin tonight on 40m - that's a first. Not much QRN for mid-August. Thanks Connie and Marvin & 73.
K6HGF LAX Hope I did better than last time. Thanks for the FMT.
N7EP WWA Very  noisy signals into Seattle tonight. No signal from WC-40M which surprised me as the propagation model looked good?  I used a barrowed HP-Z3801 which sure beats a noisy WWV signal.  Even with the Z3801 I think doing well in a FMT is more of an art than a science.  Thanks for all the work you put into these tests Connie.  They are great sport,  Earl, N7EP 
WA4FJC VA Could not hear anything on 160 M again this time.  Signals on 40 and 80 were good with some slight fading here in VA.  Used HP 3586B.  Lots of fun.
W1PW AZ On 160 meters, some LID tried to jam the FMT signal but it didn't work.  As usual, SL handled the QRM with no trouble.  The WC 40 meter signal was not detectable in AZ, and the 80 meter WC signal had a tremendous amount of Doppler during the test.  This was my first FMT using the Trimble Thunderbolt for frequency calibration.  I hope it helped. Thanks Connie and Marvin for running these tests!
K5BTK MS The conditions were the poorest yet - never heard a trace from the west coast.  A cockpit blunder limited me to the last 40 seconds of the test on 160m. Thanks for the fun!
VE2IQ ON Did not hear WC-40
WB0LXZ KS My 3586 now has error CE-E, no AGC, but still usable. I could not find 40M FMT signals though I heard some other signals on the band. -bill
W6OQI LAX 40 meter signal was S8, 80 meter signal was S9 with a LOT of Doppler.  160 meter signal was S7 with minimal Doppler.  Sorry my 55 year old Viking One intermediate power amplifier failed to work on 40 meters and I was not able to transmit the West Coast 40 meter FMT last night.
W9TJ IL Ionosphere was nervous.  Only stability I saw was on 160.  No West coast signals on 40. 
K6APW/7 OR At local sunset only heard 15 seconds of 160M call up buried in noise. Heard nothing at all of WC 40M transmission. Both 80M measurement periods had very unstable path.
VE2AZX QC I am glad I could find you on 160m this time.  Every new FMT allows me to refine my measurement method. Thanks for another interesting FMT.  Jacques VE2AZX
W3JW VA Signals were moderate to strong and the band conditions were quiet (for Summer!). Plenty of doppler to cause discontent, particularly on 80 meters. I guess I will have to lend Marvin my Ranger II---it's only 46 years old and in the "prime of it's life"--- Hi. Thanks to you both for a great string  of enjoyable FMT's.
KD2BD NNJ Many thanks for another FMT!  Connie's signals were fairly weak on 80 and even weaker on 160.  W6OQI's signals on 80 suffered some interference from a faulty street light.  About 0.3 Hz peak-to-peak of Doppler shift was observed on all signals, with the sumbitted results being averages of all measurements made during the FMT period.
K1GGI EMA Nice sig on 160, S2-3, some qrm. Other sigs were spread over many hundred mHz. Thanks Connie and Marvin for all you do.
K5CM OK I heard Marvin briefly on 40 meters. Good signal on 80 meters.
N5LBZ MS inspite of an S9 noise level I was able to hear connie's signal on 40 and 80M. Unfortunately I am not at home and I was using a different radio than usual as a result the time of the 40M test was up b4 I could get a measurement. I did much better on 80M
K6OQK LAX Connie's 80 and 40-Meter signal were very good but had quite a bit of Doppler spread at my location - the signals had several steady locations. 160-Meters was weak but steady.  I had some initial QRM from a W0 signal but was finally able to pin Connie's signal down and then go to the 20 Hz filter.  I heard Marv tuning up on 40-Meters and then a second or so of the begining of his 40-Meter run and then he was gone.  After a few minutes I called him on the phone to see what I was doing wrong. He was a bit frantic trying to figure out what had croaked in his Viking exciter. Thanks again to all for another great FMT and commeraderie.  Burt, K6OQK
WB9FIP WI It would seem that I have offended the propagation gods.  As I watched in dismay, the fickle ionosphere reeked havoc on Connie's first transmission, shifting it 200 millihertz lower over the first 90 seconds, and splitting into three distinct components.  Then, both Connie's and Marvin's 80 meter runs might just as well have been spread spectrum signals for how they appeared on the waterfall.  I decided to apply different statistical signal processing methods than traditional to derive my estimates.  And, keeping my fingers crossed too.  When I saw a few bits and pieces of Marvin's 40 meter transmission pop in and out, I thought a sacrifice to the propagation gods might be needed to restore harmony, but alas, as we have sadly learned, 'twas only Murphy at work.  Hope the patient recovers soon Marvin!



 K5CM 160 meter readings ( 1846258.624 Hz)


WA1ABI RI 1846258.624 0.000 0.00E+00
N7EP WWA 1846258.625 0.001 5.42E-10
W9TJ IL 1846258.622 -0.002 1.08E-09
WB9FIP WI 1846258.627 0.003 1.62E-09
K1GGI EMA 1846258.621 -0.003 1.62E-09
K6OQK LAX 1846258.620 -0.004 2.17E-09
W3JW VA 1846258.619 -0.005 2.71E-09
VE2IQ ON 1846258.630 0.006 3.25E-09
W6OQI LAX 1846258.630 0.006 3.25E-09
VE2AZX QC 1846258.616 -0.008 4.33E-09
WB0LXZ KS 1846258.644 0.020 1.08E-08
N8OB OH 1846258.600 -0.024 1.30E-08
K8JQ WV 1846258.650 0.026 1.41E-08
K5BTK MS 1846258.650 0.026 1.41E-08
KD2BD NNJ 1846258.677 0.053 2.87E-08
W2FD WPA 1846258.700 0.076 4.12E-08
K6HGF LAX 1846258.800 0.176 9.53E-08
WA2DVU SNJ 1846257.673 -0.951 5.15E-07
W1PW AZ 1846260.224 1.600 8.67E-07
WM5Z NM 1846251.982 -6.642 3.60E-06



 K5CM  80 meter readings ( 3567028.163 Hz)


VE2AZX QC 3567028.166 0.003 8.41E-10
W9TJ IL 3567028.153 -0.010 2.80E-09
VE2IQ ON 3567028.146 -0.017 4.77E-09
K6APW/7 OR 3567028.137 -0.026 7.29E-09
N8OB OH 3567028.116 -0.047 1.32E-08
WA4FJC VA 3567028.100 -0.063 1.77E-08
WB9FIP WI 3567028.045 -0.118 3.31E-08
K8JQ WV 3567027.950 -0.213 5.97E-08
K6OQK LAX 3567027.927 -0.236 6.62E-08
W5UFZ AZ 3567027.896 -0.267 7.49E-08
WB0LXZ KS 3567028.438 0.275 7.71E-08
K1GGI EMA 3567027.855 -0.308 8.63E-08
KD2BD NNJ 3567027.837 -0.326 9.14E-08
W2FD WPA 3567028.500 0.337 9.45E-08
W3JW VA 3567027.783 -0.380 1.07E-07
K5BTK MS 3567027.780 -0.383 1.07E-07
WA1ABI RI 3567027.762 -0.401 1.12E-07
W6OQI LAX 3567027.750 -0.413 1.16E-07
N5LBZ MS 3567027.700 -0.463 1.30E-07
WA2DVU SNJ 3567027.616 -0.547 1.53E-07
N7EP WWA 3567027.444 -0.719 2.02E-07
K6HGF LAX 3567027.017 -1.146 3.21E-07
W1PW AZ 3567029.755 1.592 4.46E-07
WM5Z NM 3567015.664 -12.499 3.50E-06



K5CM 40 meter readings ( 7067009.939 Hz)


WB9FIP WI 7067009.947 0.008 1.13E-09
W2FD WPA 7067010.000 0.061 8.63E-09
VE2IQ ON 7067009.847 -0.092 1.30E-08
W9TJ IL 7067009.821 -0.118 1.67E-08
K1GGI EMA 7067009.800 -0.139 1.97E-08
VE2AZX QC 7067009.790 -0.149 2.11E-08
WA1ABI RI 7067009.757 -0.182 2.58E-08
W5UFZ AZ 7067009.748 -0.191 2.70E-08
K5BTK MS 7067009.740 -0.199 2.82E-08
K8JQ WV 7067009.720 -0.219 3.10E-08
WA4FJC VA 7067009.700 -0.239 3.38E-08
K6APW/7 OR 7067010.187 0.248 3.51E-08
W3JW VA 7067009.681 -0.258 3.65E-08
N8OB OH 7067009.644 -0.295 4.17E-08
W6OQI LAX 7067009.470 -0.469 6.64E-08
K6OQK LAX 7067009.463 -0.476 6.74E-08
K6HGF LAX 7067009.342 -0.597 8.45E-08
WA2DVU SNJ 7067009.260 -0.679 9.61E-08
N7EP WWA 7067010.950 1.011 1.43E-07
W1PW AZ 7067005.753 -4.186 5.92E-07
WM5Z NM 7066984.549 -25.390 3.59E-06





 W6OQI 80 meter readings ( 3565165.528 Hz)



K5CM OK 3565165.523 -0.005 1.40E-09
K6OQK* LAX 3565165.521 -0.007 1.96E-09
WA1ABI RI 3565165.518 -0.010 2.80E-09
W2FD WPA 3565165.500 -0.028 7.85E-09
VE2IQ ON 3565165.607 0.079 2.22E-08
K1GGI EMA 3565165.610 0.082 2.30E-08
K6HGF LAX 3565165.636 0.108 3.03E-08
W9TJ IL 3565165.694 0.166 4.66E-08
K6APW/7 OR 3565165.710 0.182 5.10E-08
KD2BD NNJ 3565165.725 0.197 5.53E-08
W5UFZ AZ 3565165.762 0.234 6.56E-08
WB0LXZ KS 3565165.900 0.372 1.04E-07
WB9FIP WI 3565165.918 0.390 1.09E-07
W3JW VA 3565166.046 0.518 1.45E-07
N7EP WWA 3565159.284 -6.244 1.75E-06
W1PW AZ 3565172.198 6.670 1.87E-06


*K6OQK is in ground wave/direct, range of W6OQI



Spectrograph of Marvin's 80 meter signal as copied by K5CM




Spectrograph of Connie's 40 meter signal as copied by WB9FIP

Brad say's "Never seen your 40 meter signal quite like this". Brads marker is at 7066998.997 Hz




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 400 watts on 160m, 225 watts on 80m, 200 watts on 40m. 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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