K5CM FMT - April 6, 2008 Results
Transmit frequencies in Hz
K5CM
160 Meters - 1846810.432 (10 pm CDT)
80 Meters late - 3569421.185 (9:30 pm CDT)
80 Meters early - 3567510.375 (5pm CDT)
40 Meters - 7077732.856 (4:45 pm CDT)
30 Meters - 10115222.123 (4:30 pm CDT)
20 Meters - 14067631.124 (4 pm CDT)
17 Meters - 18077431.257 (3:30 pm CDT)
W6OQI
80 Meters - 3565160.058 (10:30 pm CDT)
There were a total of 114 readings submitted with 70 readings being better than 100 millihertz. If this trend keeps going I will soon be able to drop the better than 100 millhertz box, every one will be in it! I'm sure Mr. Doppler still has plenty of tricks left in his bag to keep us scratching our heads for a while.
Stations copying 2 readings to 10 millihertz or better in the last three FMT's:
W3JW, WB9FIP
Stations copying 2 readings to 10 millihertz or better in the last four FMT's:
WB9FIP
Stations copying all possible bands and readings (8):
This is indeed a challenge. Congratulations guys!!!
WB9FIP, W3JW, W0PHD, K5BTK
Stations copying 3 readings to 10 millihertz or better:
W3JW
Stations copying 2 readings to 10 millihertz or better:
WB9FIP, W9TJ, N7EP, K6OQK,
A look at all readings better than 10 millihertz:
| Frequency | Reading | Error | ||||
| WA1ABI | RI | 1846810.432 | 1846810.432 | 0.000 | 0.00E+00 | 0.000 |
| W3JW | VA | 3567510.375 | 3567510.375 | 0.000 | 0.00E+00 | 0.000 |
| WB9FIP | WI | 7077732.856 | 7077732.856 | 0.000 | 0.00E+00 | 0.000 |
| W3JW | VA | 18077431.257 | 18077431.257 | 0.000 | 0.00E+00 | 0.000 |
| K6OQK | LAX | 3565160.058 | 3565160.059 | 0.001 | 2.80E-10 | 0.001 |
| W0PHD | MN | 3565160.058 | 3565160.057 | -0.001 | 2.80E-10 | 0.001 |
| N7EP | WWA | 3569421.185 | 3569421.186 | 0.001 | 2.80E-10 | 0.001 |
| N7EP | WWA | 14067631.124 | 14067631.123 | -0.001 | 7.11E-11 | 0.001 |
| VE2AZX | QC | 1846810.432 | 1846810.434 | 0.002 | 1.08E-09 | 0.002 |
| W9TJ | IL | 3567510.375 | 3567510.377 | 0.002 | 5.61E-10 | 0.002 |
| WB9FIP | WI | 3567510.375 | 3567510.373 | -0.002 | 5.61E-10 | 0.002 |
| K6OQK | LAX | 1846810.432 | 1846810.435 | 0.003 | 1.62E-09 | 0.003 |
| W5UFZ | AZ | 18077431.257 | 18077431.260 | 0.003 | 1.66E-10 | 0.003 |
| W3JW | VA | 1846810.432 | 1846810.436 | 0.004 | 2.17E-09 | 0.004 |
| N5LBZ | MS | 3569421.185 | 3569421.190 | 0.005 | 1.40E-09 | 0.005 |
| K1GGI | EMA | 1846810.432 | 1846810.425 | -0.007 | 3.79E-09 | 0.007 |
| W9TJ | IL | 7077732.856 | 7077732.865 | 0.009 | 1.27E-09 | 0.009 |
All readings continue to improve. There were 70 readings 100 millihertz or better. Very impressive.
Stations copying 7 readings to 100 millihertz or better:
WA1ABI, WB9FIP
Stations copying 6 readings to 100 millihertz or better:
W5UFZ, K5BTK
Stations copying 5 readings to 100 millihertz or better:
W3JW, N7EP, K1GGI
Stations copying 4 readings to 100 millihertz or better:
W0PHD, W6OQI, W9TJ
Stations copying 3 readings to 100 millihertz or better:
VE2AZX, K6OQK
Stations copying 2 readings to 100 millihertz or better:
WB0LXZ, W3CSW, KD2BD, K6APW
Stations copying 1 readings to 100 millihertz or better:
W1PW, N5LBZ, K5CM
| K1GGI | EMA | Another fun time. 20m east and west were a lot closer than other times, .02Hz. Nil on 80 early and 17 west. Lost W6OQI to qsb soon after the beginning. |
| K5BTK | MS | Just like last month, 40m BOOMED in and all other tests were between very weak and extremely weak. A faint "pip" appeared on my waterfall for the 30m test for about 10 secs at 21:36:52 UTC in my S7 line-noise. But I was determined to get a measurement on all frequencies. Your web site made me aware of Spectrum Lab which I used this time rather than Digipan. Thanks for the fun! |
| K5CM | OK | Good signal tonight with some QRN from nearby storms. Marvin, thanks for the West coast run. |
| K6APW | EB | 17M east absolute zero signal; west never a full ID Rcvd... |
| K6OQK | LAX | Sorry I missed the early runs. I was expecting to be home in time for them but..well. Signals were pretty good on the evening runs, with 160-Meters being the weaker but most stable of Connie's signals. I use Marv's signal to warm my shack! As always, thanks to you and Pam for great FMTs and the group's camaraderie. Burt, K6OQK |
| K6OQK | LAX | Sorry I missed the afternoon runs. Family festivities ran longer than expected. Signals were pretty good for the evening runs with 80-Meters being pretty strong but a little Doppler spread. 160-Meters was weaker but only minor spread. Marv's signal - I use it to heat my shack! As usual, thanks to you and Pam for another great FMT and to the group for their camaraderie. Burt, K6OQK |
| K7ZD | AZ | Simple here, IC-746Pro without TCXO.. using my "ears" ref the sidetone HI First time I've run across you 73, Gary K7ZD |
| KD2BD | NNJ | Nothing heard on the early 80-meter run, but the late run provided *VERY* strong signals into NJ with minimal fading. 160-meter signals were noticeably weaker with some deep fades. W6OQI was weaker still, but strong enough to make measurements. The 80-meter readings were taken using a loop filter with insufficient damping. Hopefully no oscillations occurred during test time. The Kp index was 4. |
| N5LBZ | MS | No copy on 17 and the early 80M test again. Into every life a little rain must fall and Friday nite/early Sat we got 51/2 inches with thunderstorms. Unfortunately, I did not realize the storm blew the fuse in mu GPS until I had completed all my readings. So I had to do them all over. I wont be surprised if I messed the mark on all bands. |
| N7EP | WWA | I compared the propagation with the VOAProp software and it was right on the money. No signal to Seattle on 17 and 80 meters early. Installed the high stability oscillator in my ICOM 746 and it greatly improved frequency stability. With only WWV as my reference this really helped. The only strong signal I had during the FMT was on 20 m with your beam pointed west. Thanks for the FMT, Earl, N7EP |
| VE2AZX | QC | Very strong sig on 20m. Lots of Doppler below 20m. Thanks for running these FMT's. Jacques VE2AZX |
| W0PHD | MN | 17M all most no copy 20 M QSB to noise floor 80 M late qrm was one of the most difficult FMTs for me as lots of Doppler on all signals here. |
| W1PW | AZ | 17M:East run inaudible. West run S2 up to S6. 20M:East run S9; West run S9+15; 30M:S2 (max) with deep qsb into the noise; 40M: S6; 80M (early) was inaudible; 80M (late) S4-S5 with LOTS of Doppler; 160M: S6 with Doppler, but less than was on 80M (Late). Thanks Connie and Marvin for these tests. |
| W2HV | WNY | agn mni tnx Connie. Keep up the good work. I learn something new with every test! Henry |
| W3CSW | MDC | Very poor props but thanks again for the opportunity to try... |
| W3JW | VA | Strong or medium signals were received on 20,30,40,80L,and 160 meters. Weak signals were received on 17, 80E and WC tests. Significant Doppler spread was encountered on all 80 meter tests and the 160 meter test |
| W5UFZ | AZ | 5-6-9 to 5-9-9 all bands except 80 meter early run where there was no sig here at all. K5CM late 80 meter too much qrm to get reading. My gps freq standard died halfway thru FMT. Great fun, hi! Tnx for the test. |
| W6OQI | LAX | No signal heard on 17 meters. 20 meter signal was very strong. 30 meter signal was weak but OK for measurement. 40 meters was also weak but OK for measurement. Nothing heard on the early 80 meter run. Signal was good for the late 80 meter run. 160 signal was good. |
| W9TJ | IL | No signals 17 or 30 mtrs. 20 east weak QSB some QRM, west more stable. 40 FB sig no fade phase stable. 80 early FB sig and stable. 80 late FB signal but wild phase deviation. 160 good signal but phase wander. W6OQI QRN @ S8, sig weak and phase unstable. |
| WA1ABI | RI | Decent copy on all bands except the 80m early run. Lots of QRN on the late runs. First time I've seen a large Doppler spread on 160. Thanks Connie and Marvin. 73, john |
| WB0LXZ | KS | I am still fine tuning my GPS/OCXO system. Thanks. -bill |
| WB9FIP | WI | Another great FMT! 17 meters is getting tougher --- could only make a visual on waterfall display. Marvin was a nice S7 on 80 tonight. Thanks to all for the fun. |
K5CM 160 meter readings ( 1846810.432Hz)
| WA1ABI | RI | 1846810.432 | 0.000 | 0.00E+00 | |
| VE2AZX | QC | 1846810.434 | 0.002 | 1.08E-09 | |
| K6OQK | LAX | 1846810.435 | 0.003 | 1.62E-09 | |
| W3JW | VA | 1846810.436 | 0.004 | 2.17E-09 | |
| K1GGI | EMA | 1846810.425 | -0.007 | 3.79E-09 | |
| W5UFZ | AZ | 1846810.42 | -0.012 | 6.50E-09 | |
| W6OQI | LAX | 1846810.45 | 0.018 | 9.75E-09 | |
| WB9FIP | WI | 1846810.367 | -0.065 | 3.52E-08 | |
| K5BTK | MS | 1846810.5 | 0.068 | 3.68E-08 | |
| KD2BD | NNJ | 1846810.357 | -0.075 | 4.06E-08 | |
| N7EP | WWA | 1846810.513 | 0.081 | 4.39E-08 | |
| W9TJ | IL | 1846810.346 | -0.086 | 4.66E-08 | |
| W0PHD | MN | 1846810.263 | -0.169 | 9.15E-08 | |
| WB0LXZ | KS | 1846810.211 | -0.221 | 1.20E-07 | |
| W1PW | AZ | 1846810.666 | 0.234 | 1.27E-07 | |
| K6APW | EB | 1846810.82 | 0.388 | 2.10E-07 | |
| W2HV | WNY | 1847811.37 |
K5CM Late 80 meter readings ( 3569421.185Hz)
| N7EP | WWA | 3569421.186 | 0.001 | 2.80E-10 | |
| N5LBZ | MS | 3569421.190 | 0.005 | 1.40E-09 | |
| WA1ABI | RI | 3569421.204 | 0.019 | 5.32E-09 | |
| K5BTK | MS | 3569421.160 | -0.025 | 7.00E-09 | |
| K6OQK | LAX | 3569421.160 | -0.025 | 7.00E-09 | |
| W6OQI | LAX | 3569421.150 | -0.035 | 9.81E-09 | |
| VE2AZX | QC | 3569421.236 | 0.051 | 1.43E-08 | |
| WB0LXZ | KS | 3569421.258 | 0.073 | 2.05E-08 | |
| WB9FIP | WI | 3569421.258 | 0.073 | 2.05E-08 | |
| K1GGI | EMA | 3569421.281 | 0.096 | 2.69E-08 | |
| KD2BD | NNJ | 3569421.296 | 0.111 | 3.11E-08 | |
| W2HV | WNY | 3569421.070 | -0.115 | 3.22E-08 | |
| W9TJ | IL | 3569421.341 | 0.156 | 4.37E-08 | |
| K6APW | EB | 3569421.480 | 0.295 | 8.26E-08 | |
| W1PW | AZ | 3569421.497 | 0.312 | 8.74E-08 | |
| W3JW | VA | 3569421.649 | 0.464 | 1.30E-07 | |
| W0PHD | MN | 3569421.920 | 0.735 | 2.06E-07 |
K5CM Early 80 meter readings ( 3567510.375 Hz)
| W3JW | VA | 3567510.375 | 0.000 | 0.00E+00 | |
| W9TJ | IL | 3567510.377 | 0.002 | 5.61E-10 | |
| WB9FIP | WI | 3567510.373 | -0.002 | 5.61E-10 | |
| WB0LXZ | KS | 3567510.359 | -0.016 | 4.48E-09 | |
| W0PHD | MN | 3567510.400 | 0.025 | 7.01E-09 | |
| K5BTK | MS | 3567510.410 | 0.035 | 9.81E-09 | |
| W3CSW | MDC | 3567510.336 | -0.039 | 1.09E-08 |
K5CM 40 meter readings ( 7077732.856 Hz)
| WB9FIP | WI | 7077732.856 | 0.000 | 0.00E+00 | |
| W9TJ | IL | 7077732.865 | 0.009 | 1.27E-09 | |
| K6APW | EB | 7077732.880 | 0.024 | 3.39E-09 | |
| K5BTK | MS | 7077732.830 | -0.026 | 3.67E-09 | |
| WA1ABI | RI | 7077732.820 | -0.036 | 5.09E-09 | |
| W5UFZ | AZ | 7077732.770 | -0.086 | 1.22E-08 | |
| W0PHD | MN | 7077732.760 | -0.096 | 1.36E-08 | |
| N7EP | WWA | 7077732.737 | -0.119 | 1.68E-08 | |
| W1PW | AZ | 7077732.682 | -0.174 | 2.46E-08 | |
| WB0LXZ | KS | 7077732.663 | -0.193 | 2.73E-08 | |
| W3JW | VA | 7077732.652 | -0.204 | 2.88E-08 | |
| VE2AZX | QC | 7077732.642 | -0.214 | 3.02E-08 | |
| W3CSW | MDC | 7077732.589 | -0.267 | 3.77E-08 | |
| W6OQI | LAX | 7077732.570 | -0.286 | 4.04E-08 | |
| N5LBZ | MS | 7077733.200 | 0.344 | 4.86E-08 | |
| K1GGI | EMA | 7077732.474 | -0.382 | 5.40E-08 | |
| W2HV | WNY | 7077690.731 |
K5CM 30 meter readings ( 10115222.123 Hz)
| W3JW | VA | 10115222.108 | -0.015 | 1.48E-09 | |
| WB9FIP | WI | 10115222.102 | -0.021 | 2.08E-09 | |
| K6APW | EB | 10115222.100 | -0.023 | 2.27E-09 | |
| W0PHD | MN | 10115222.090 | -0.033 | 3.26E-09 | |
| WA1ABI | RI | 10115222.076 | -0.047 | 4.65E-09 | |
| W6OQI | LAX | 10115222.060 | -0.063 | 6.23E-09 | |
| N7EP | WWA | 10115222.060 | -0.063 | 6.23E-09 | |
| W5UFZ | AZ | 10115222.190 | 0.067 | 6.62E-09 | |
| W3CSW | MDC | 10115221.950 | -0.173 | 1.71E-08 | |
| K1GGI | EMA | 10115221.949 | -0.174 | 1.72E-08 | |
| W2HV | WNY | 10115221.946 | -0.177 | 1.75E-08 | |
| K5BTK | MS | 10115222.330 | 0.207 | 2.05E-08 | |
| N5LBZ | MS | 10115222.719 | 0.596 | 5.89E-08 | |
| W1PW | AZ | 10115220.165 | -1.958 | 1.94E-07 |
K5CM 20 meter readings ( 14067631.124 Hz)
| N7EP | WWA | 14067631.123 | -0.001 | 7.11E-11 | |
| W3CSW | MDC | 14067631.102 | -0.022 | 1.56E-09 | |
| W3JW | VA | 14067631.098 | -0.026 | 1.85E-09 | |
| W9TJ | IL | 14067631.094 | -0.030 | 2.13E-09 | |
| W5UFZ | AZ | 14067631.090 | -0.034 | 2.42E-09 | |
| WB9FIP | WI | 14067631.090 | -0.034 | 2.42E-09 | |
| K5BTK | MS | 14067631.080 | -0.044 | 3.13E-09 | |
| WA1ABI | RI | 14067631.067 | -0.057 | 4.05E-09 | |
| W1PW | AZ | 14067631.186 | 0.062 | 4.41E-09 | |
| K1GGI | EMA | 14067631.043 | -0.081 | 5.76E-09 | |
| VE2AZX | QC | 14067631.041 | -0.083 | 5.90E-09 | |
| W6OQI | LAX | 14067631.040 | -0.084 | 5.97E-09 | |
| W0PHD | MN | 14067631.240 | 0.116 | 8.25E-09 | |
| K6APW | EB | 14067630.830 | -0.294 | 2.09E-08 | |
| N5LBZ | MS | 14067631.750 | 0.626 | 4.45E-08 | |
| W2HV | WNY | 14067587.108 |
K5CM 17 meter readings ( 18077431.257 Hz)
| W3JW | VA | 18077431.257 | 0.000 | 0.00E+00 | |
| W5UFZ | AZ | 18077431.260 | 0.003 | 1.66E-10 | |
| K1GGI | EMA | 18077431.244 | -0.013 | 7.19E-10 | |
| WA1ABI | RI | 18077431.226 | -0.031 | 1.71E-09 | |
| WB9FIP | WI | 18077431.310 | 0.053 | 2.93E-09 | |
| K5BTK | MS | 18077431.350 | 0.093 | 5.14E-09 | |
| W0PHD | MN | 18077431.700 | 0.443 | 2.45E-08 | |
| K6APW | EB | 18077430.620 | -0.637 | 3.52E-08 | |
| W1PW | AZ | 18077428.210 | -3.047 | 1.69E-07 | |
| K7ZD | AZ | 18077480.000 |
W6OQI 80 meter readings ( 3565160.058 Hz)
| W0PHD | MN | 3565160.057 | -0.001 | 2.80E-10 | |
| K6OQK | LAX | 3565160.059 | 0.001 | 2.80E-10 | |
| K1GGI | EMA | 3565160.07 | 0.012 | 3.37E-09 | |
| N7EP | WWA | 3565160.042 | -0.016 | 4.49E-09 | |
| WA1ABI | RI | 3565160.076 | 0.018 | 5.05E-09 | |
| K5CM | OK | 3565160.035 | -0.023 | 6.45E-09 | |
| W5UFZ | AZ | 3565160 | -0.058 | 1.63E-08 | |
| KD2BD | NNJ | 3565160 | -0.058 | 1.63E-08 | |
| WB9FIP | WI | 3565159.9 | -0.158 | 4.43E-08 | |
| W3JW | VA | 3565160.228 | 0.170 | 4.77E-08 | |
| W9TJ | IL | 3565159.863 | -0.195 | 5.47E-08 | |
| W1PW | AZ | 3565160.294 | 0.236 | 6.62E-08 | |
| K5BTK | MS | 3565159.81 | -0.248 | 6.96E-08 | |
| WB0LXZ | KS | 3565159.802 | -0.256 | 7.18E-08 | |
| W2HV | WNY | 3565159.668 | -0.390 | 1.09E-07 | |
| K6APW | EB | 3565160.5 | 0.442 | 1.24E-07 |
Even though Jeff was barely able to copy my call in the 80 meter early run, he managed a very good reading with SL.
Transmitting equipment used by K5CM for this FMT:
A HP-Z3801 GPS 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, 275 watts on 40m, 125 watts on 30m, 325 watts on 20m and 125 watts on 17m. 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. 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.
Antennas:
160 - Vertical
80 - Cage Dipole (favors East, West, and North)
40 - Dipole (favors East, West)
30 - Dipole (favors East, West, and North)
20 - 4 Element SteppIR Yagi
17 - 4 Element SteppIR Yagi
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.
73,
Connie
K5CM