K5CM Day Time FMT Nov 1 2020 1830 UTC (Sunday in North America)
Comments
|
Call |
Section |
Grid |
Comments |
|
KB2HSH |
WNY |
FN02NX |
Thank you, Connie for this special "during the day |
|
WS7M |
CO |
DN70KM |
First time FMT. Unreferenced, Flex-6600 with GPSDO, 80m loop ant @ 30 feet |
|
W4WJ |
STX |
EM00mg |
20m RUFF -120dBm QSB into the noise floor... tough to get a good zero... 40m -80dBm very stable... TNX Connie as always... 73 Don W4WJ |
|
W5LAC |
MS |
EM51 |
Signal on 20 not usable at this QTH. 40 was OK, used Flex 3000 and Fldigi |
|
KD2BD |
NNJ |
FN20xd |
Lots of slow QSB with Connie's signal occasionally dipping below my noise level. The Kp-index was a 3. I used a small vertically polarized indoor loop antenna into a newly improved preamp, driving my homebrew FMT gear using a never-before-used DDS VFO. |
|
K7NG |
ORE |
CN73ui |
40M this time of day was rough to PNW but I did see a steady signal on fldigi waterfall. IC7610 + fldigi |
|
AB2UW |
NLI |
FN30lu |
Tougher with freq change after callup & 30s key down. THANKS for this practice FMT! |
|
W1HKJ |
AL |
EM64QV |
Signal had two heavy QSB dropouts. Signal appeared to have short term FM component compared to a local GPSDO monitored simultaneously |
|
W2TX |
GA |
EM74se |
20M was extremely weak to inaudible. 40M was 10uV (from a 40 ft verticle) with some fading. Thank you, Connie! |
|
WA2DVU |
SNJ |
20 M sig 10/9 solid - virtually no doppler, 40 M sig S6 some doppler. Thanks Connie. |
|
|
VE9DAN |
MAR |
FN65td |
SDRplay RSP-1, FLdigi, and Python. Good signals both bands. |
|
N9KT |
IN |
EM69wv |
Thanks Connie! 756Pro2 with WSJT-X. |
|
AF9A |
IN |
EM69wv |
20m east signal never got more than 10dB above the noise. West was S9+10. 40m was so good I forgot to make note of it. Thanks Connie! |
|
WD4IYE |
KY |
EM78qx |
20 Meters was below my S7 noise level. 40 Meters was S9 and solid copy. LOL I had lots of plans for work around the house today but it can wait. I didn't double check so hopefully I'm within a Hz. Thanks Connie! |
|
VE2IQ |
ON |
FN15nt |
20M east: S9+20, west: S5, 40M: weak. Tnx Connie |
|
W9TN |
IN |
EN60 |
The usual heterodyne method with GPS locked signal generator injecting an RF reference signal creating an AF beat note measured with Spectrum Lab. Managed to mess up the first 20m run, so data is from second. 40m signal very strong. TU Connie! |
|
W7SUA |
AZ |
DM34rs |
got confused here but got 1st 20m keydown and the 40m keydown. I used fldigi's FMT Modem with a GPSDO stabilized SigLent 2042X as the reference signal. Much fun! Thanks Connie de Tom W7SUA |
|
KD5FX |
OK |
EM16lr |
Weak signals on 20 but great signal on 40. |
|
VE3YX |
ON |
FN16fd |
Used the new FMT mode in FLdigi. TS-870 with Bodnar mini for its ref. Ref signal is from Marconi 2018A with a separate 10 MHz GPSDO. Both dir. 20 m signals were strong but 40 was weak. Did not include Doppler compensation. |
|
KA5QEP |
OK |
EM15ni |
|
|
W9INE |
CO |
DM70gi |
FLEX 6700 & FLDIGI |
|
WQ8T |
MI |
EN74hf |
Thanks again Connie. |
|
k2lyv |
WCF |
el88rb |
Just a quick setup. Was busy and only caught the 40M run. |
|
W4VU |
NC |
FM06fb |
HP 3586B Visual observations - took median. 15 min warmup. Not ready with software. Thanks for practice run Connie! |
40 Meters
|
Call |
Section |
Grid |
TX Frequency |
Measured Freq |
Error in Hz |
Error in PPX |
|
W7SUA |
AZ |
DM34rs |
7065252.408 |
7065252.41 |
0.002 |
2.83E-10 |
|
VE3YX |
ON |
FN16fd |
7065252.408 |
7065252.431 |
0.023 |
3.26E-09 |
|
W4WJ |
STX |
EM00mg |
7065252.408 |
7065252.434 |
0.026 |
3.68E-09 |
|
WA2DVU |
SNJ |
7065252.408 |
7065252.377 |
-0.031 |
4.39E-09 |
|
|
KD2BD |
NNJ |
FN20xd |
7065252.408 |
7065252.441 |
0.033 |
4.67E-09 |
|
W2TX |
GA |
EM74se |
7065252.408 |
7065252.448 |
0.040 |
5.66E-09 |
|
WQ8T |
MI |
EN74hf |
7065252.408 |
7065252.368 |
-0.040 |
5.66E-09 |
|
W9TN |
IN |
EN60 |
7065252.408 |
7065252.359 |
-0.049 |
6.94E-09 |
|
VE2IQ |
ON |
FN15nt |
7065252.408 |
7065252.343 |
-0.065 |
9.20E-09 |
|
WD4IYE |
KY |
EM78qx |
7065252.408 |
7065252.34 |
-0.068 |
9.62E-09 |
|
W5LAC |
MS |
EM51 |
7065252.408 |
7065252.5 |
0.092 |
1.30E-08 |
|
AF9A |
IN |
EM69wv |
7065252.408 |
7065252.281 |
-0.127 |
1.80E-08 |
|
AB2UW |
NLI |
FN30lu |
7065252.408 |
7065252.28 |
-0.128 |
1.81E-08 |
|
W1HKJ |
AL |
EM64QV |
7065252.408 |
7065252.259 |
-0.149 |
2.11E-08 |
|
K7NG |
ORE |
CN73ui |
7065252.408 |
7065252.565 |
0.157 |
2.22E-08 |
|
N9KT |
IN |
EM69wv |
7065252.408 |
7065252.203 |
-0.205 |
2.90E-08 |
|
KA5QEP |
OK |
EM15ni |
7065252.408 |
7065252.66 |
0.252 |
3.57E-08 |
|
K2LYV |
WCF |
EL88rb |
7065252.408 |
7065251.934 |
-0.474 |
6.71E-08 |
|
WS7M |
CO |
DN70KM |
7065252.408 |
7065251.801 |
-0.607 |
8.59E-08 |
|
W9INE |
CO |
DM70gi |
7065252.408 |
7065253.342 |
0.934 |
1.32E-07 |
|
W4VU |
NC |
FM06fb |
7065252.408 |
7065254 |
1.592 |
2.25E-07 |
|
VE9DAN |
MAR |
FN65td |
7065252.408 |
7065248.835 |
-3.573 |
5.06E-07 |
|
KD5FX |
OK |
EM16lr |
7065252.408 |
7065247.938 |
-4.470 |
6.33E-07 |
|
KB2HSH |
WNY |
FN02NX |
7065252.408 |
7065247.905 |
-4.503 |
6.37E-07 |
20 Meters
|
Call |
Section |
Grid |
TX Frequency |
Measured Freq |
Error in Hz |
Error in PPX |
|
AB2UW |
NLI |
FN30lu |
14121411.408 |
14121411.4 |
-0.008 |
5.67E-10 |
|
W9TN |
IN |
EN60 |
14121411.408 |
14121411.394 |
-0.014 |
9.91E-10 |
|
W9INE |
CO |
DM70gi |
14121411.408 |
14121411.423 |
0.015 |
1.06E-09 |
|
WA2DVU |
SNJ |
14121411.408 |
14121411.378 |
-0.030 |
2.12E-09 |
|
|
AF9A |
IN |
EM69wv |
14121411.408 |
14121411.439 |
0.031 |
2.20E-09 |
|
VE3YX |
ON |
FN16fd |
14121411.408 |
14121411.374 |
-0.034 |
2.41E-09 |
|
VE2IQ |
ON |
FN15nt |
14121411.408 |
14121411.372 |
-0.036 |
2.55E-09 |
|
N9KT |
IN |
EM69wv |
14121411.408 |
14121411.359 |
-0.049 |
3.47E-09 |
|
KA5QEP |
OK |
EM15ni |
14121411.408 |
14121411.35 |
-0.058 |
4.11E-09 |
|
WD4IYE |
KY |
EM78qx |
14121411.408 |
14121411.53 |
0.122 |
8.64E-09 |
|
WQ8T |
MI |
EN74hf |
14121411.408 |
14121411.286 |
-0.122 |
8.64E-09 |
|
W7SUA |
AZ |
DM34rs |
14121411.408 |
14121411.535 |
0.127 |
8.99E-09 |
|
W4WJ |
STX |
EM00mg |
14121411.408 |
14121411 |
-0.408 |
2.89E-08 |
|
K7NG |
ORE |
CN73ui |
14121411.408 |
14121412.012 |
0.604 |
4.28E-08 |
|
WS7M |
CO |
DN70KM |
14121411.408 |
14121412.04 |
0.632 |
4.48E-08 |
|
VE9DAN |
MAR |
FN65td |
14121411.408 |
14121407.864 |
-3.544 |
2.51E-07 |
|
W4VU |
NC |
FM06fb |
14121411.408 |
14121416 |
4.592 |
3.25E-07 |
|
KB2HSH |
WNY |
FN02NX |
14121411.408 |
14121416.724 |
5.316 |
3.76E-07 |
|
KD5FX |
OK |
EM16lr |
14121411.408 |
14121404.2 |
-7.208 |
5.10E-07 |
For those interested, the call up frequencies were: 7065244.368, and 14121403.281
Transmitting equipment used by K5CM for this FMT:
A HP Z3801 GPS frequency source clocks a HP-3336B. The output is feed to a 10 db transistor amp which drives a 12BY7 / pair 6146. Then to a AL-1500 running about 750 watts out. 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.
I typically see considerably less than 1 mHz difference at 10 Mhz when comparing two Z3801's or a Z3801 and a Thunderbolt, over a 10 to 10,000 second period.
Antennas:
80 - Dipole. (favors West, North, East)
40 - Standard Dipole hanging between two 80 foot towers. (favors East, West)
20 - TH7 at 80 feet
73,
Connie
K5CM