ON8DC's blog

Today the beacon OQ8SNW special event beacon was on board a high altitude balloon between 10:00 and 11:00UTC.
see also other post about the beacon.
A special QSL card wil be received if you send report via nureau.
More info on FB group: VTS asgard gip and FB group: Asgard VII

The station OQ8SNW is a special event station to celebrate the 800th birthday of Sint-Niklaas a town in Belgium. For more info and history check Wikipedia (https://en.wikipedia.org/wiki/Sint-Niklaas)

2009-12-28 19:23 switch from 50µW to 1mW
20:36 to 10mW
20:57 to 5 mw
21:47 to 2.5mw
23:00 to 1mw
sorry I had to test with a new local station.
Erik
On8DC

Last night I saw DM3XRF (new wspr menber) spotting me at 1mW with -4dB SNR. I increased my weinschel attenuator to 23dB =50µWatt.
And yes this morning I got 1 spot with-13dB SNR so plenty room to go lower..
Indeed -13dB 304 km gives 6.08 Km/µWatt. 16dB (-29dB min) room so with 2.5µW it could be possible!
Congrats Peter, but pls provide us with details off your bigear.

2009-12-28 07:50 ON8DC 3.594055 -13 0 JO21be 0.001 DM3XRF JN39pi 304 131

final results are listed down. intresting remark "best ear" is DK5AI with 4.47Km/µW 4.4Mi Km/W. If I take into acount that his SNR is -21dB and the best could be -29dB He can theoreticly spot me with 16µW
Same excercise PA0HCK could recieve me in theory with 13µW finally ON7AN with 10µW.

2009-12-26 13:20 ON8DC 3.594069 -25 0 JO21be 0.001 ON7AN JO20ek 85 168
2009-12-26 13:00 ON8DC 3.594069 -24 0 JO21be 0.001 ON7AN JO20ek 85 168
2009-12-26 12:40 ON8DC 3.594069 -28 0 JO21be 0.001 ON7AN JO20ek 85 168
2009-12-26 12:32 ON8DC 7.040053 -25 0 JO21be 0.001 DK3SML JN49sf 443 117
2009-12-26 12:32 ON8DC 7.040055 -29 0 JO21be 0.001 G4ENZ IO81vv 445 283
2009-12-26 12:00 ON8DC 3.594069 -22 -1 JO21be 0.001 ON7AN JO20ek 85 168
2009-12-26 08:00 ON8DC 3.594074 -21 0 JO21be 0.001 DL0TUH JO43xl 471 55
2009-12-26 02:20 ON8DC 3.594077 -28 0 JO21be 0.001 DL0TUH JO43xl 471 55
2009-12-26 01:20 ON8DC 3.594073 -21 0 JO21be 0.001 DL0TUH JO43xl 471 55

I had spots from PA0HCK with 1mW at SNR -10 dB and switched to 100µwatt

2009-12-25 09:20 ON8DC 3.594057 -20 0 JO21be 0.001 PA0HCK JO33ld 291 40
We have to invent new parameter µ watts /km and taking SNR into account.
Merry Christmas to all
Erik

already spoted by "Bigears"
2009-12-24 16:00 ON8DC 3.594065 -24 0 JO21be 0.001 G3YSX IO91wg 296 273
2009-12-24 16:00 ON8DC 3.594056 -20 0 JO21be 0.001 PA0HCK JO33ld 291 40
2009-12-24 16:00 ON8DC 3.594064 -25 0 JO21be 0.001 DC4FS JO33vn 363 42
73's
Erik

40m every 10min 80m every 30 min using si-570 beacon PE1NNZ/QRP2000 with attenuator
I will try tio find out their equipment.
73's
Erik
ON8DC

250µ Watt -6dBm W3DZZ

2009-12-23 12:10 ON8DC 3.594069 -21 1 JO21be 0.01 ON7AN JO20 98 143
2009-12-23 12:02 ON8DC 7.040056 -26 1 JO21be 0.01 G6YEK IO81mi 493 275
2009-12-23 11:50 ON8DC 3.594064 -16 0 JO21be 0.01 G3JKV IO91uf 308 273
2009-12-23 11:30 ON8DC 3.594066 -23 0 JO21be 0.01 G3YSX IO91wg 296 273
2009-12-23 11:02 ON8DC 7.040059 -27 0 JO21be 0.01 G6YEK IO81mi 493 275
2009-12-23 10:52 ON8DC 7.040159 -24 0 JO21be 0.01 DG0OPK JO50gq 453 95
2009-12-23 10:52 ON8DC 7.040160 -28 0 JO21be 0.01 G6YEK IO81mi 493 275

500µ watt -3dBm W3DZZ

2009-12-23 10:10 ON8DC 3.594068 -24 0 JO21be 0.01 G3YSX IO91wg 296 273
2009-12-23 10:10 ON8DC 3.594066 -25 0 JO21be 0.01 G3JKV IO91uf 308 273
2009-12-23 10:02 ON8DC 7.040062 -22 0 JO21be 0.01 DG0OPK JO50gq 453 95

remark big ears SM0FLY DL2ANV they must have low ref noise and excellent antennas.
I am using a PE1NNZ SI-570 Beacon with 10Db att at output into W3DZZ at 10m.
I did not change manually the power in the data base it is 10mW.

1 mWatt +0dbm Test
Timestamp Call MHz SNR Drift Grid Pwr Reporter RGrid km az
2009-12-12 16:34 ON8DC 3.594067 -20 0 JO21be 0.001 G0KTN IO81ti 452 275
2009-12-12 15:58 ON8DC 3.594066 -15 0 JO21be 0.001 DL2ANV JO33tc 320 47
2009-12-12 15:58 ON8DC 3.594068 -23 0 JO21be 0.001 G0KTN IO81ti 452 275

2009-12-12 12:46 ON8DC 7.040058 -23 0 JO21be 0.001 HB9TMW JN36gq 531 160
2009-12-12 12:34 ON8DC 3.594066 -14 0 JO21be 0.001 DL2ANV JO33tc 320 47
2009-12-12 12:16 ON8DC 7.040155 -12 0 JO21be 0.001 DK3SML JN49sf 443 117
2009-12-12 12:16 ON8DC 7.040157 -22 0 JO21be 0.001 HB9TMW JN36gq 531 160
2009-12-12 12:06 ON8DC 7.040058 -24 0 JO21be 0.001 HB9TMW JN36gq 531 160
2009-12-12 11:56 ON8DC 7.040157 -22 0 JO21be 0.001 DL8BB JO41ul 389 83