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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

After "fiddling around" with some difficulties, I have it running now. Before XMAS my SDR-IQ RX arrived from the U.S. (RFSpace company). Using the VAC(Virtual Audio Cable) software I got the AF fed into WSPR and it is running very fine now. RXwise only of course.
Anyone else is using the SDR-IQ here ??
GL es 73 de Christoph DF9CY

The 40m low power activity on the XMAS days were fantastic. I found it almost unbelievable, of what my little Softrock_RXTX6.1 is capable TXwise with the 450mW as well as RX wise. I have a high noise level from halogen light switching PSUs here otherwise receiving could be better. Despite my antenna - which is a full size dipole for 40m - is up only about 6m, my signal was heard down in VK7 and ZL. Thanks to all for participating to the activity.
73 de Christoph DF9CY

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

Für weitere Informationen schaut bitte in meinem Spaces

http://dl3xd.spaces.live.com/

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

I started with WSPR the first time today. Using WSPR in a virtual windows machine running on a mac.
Will use my 3 el. for 40m beaming 300 deg (W) with 10 W starting 17:05 UTC Dec. 23rd for a few hours.

For me WSPR is an exciting new approach to study shortwave propagation.
Thanks for this new facet of ham radio to K1JT.

By the way, I just received VE6AXL on 40 m 17:14 UTC great!

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

My first dip into wspr. usually contribute to propnet.org. will try switching to activity frequency later tonight.

Thanks to Vlad, UA6JD, a Russian translation of the WSPR 2.0 User's Guide is now available. A link has been placed on the WSJT/WSPR web site:

http://physics.princeton.edu/pulsar/K1JT/wspr.html

We now have translations of the WSPR 2.0 User's Guide in French, (Brazilian) Portuguese, and Russian. Translations into other languages would be very welcome; if you are interested in doing this and would like a copy of the original MS Word file in English, please let me know.

-- 73, Joe, K1JT

Well here in the Northwest corner of England we are experiencing probably the first spell of very snowy weather since (by my reckoning anyway) 1996.

I think we have about seven inches (18cm) of level snow, and thankfully there hasn't been any wind to whip it up into deep drifts.

No big deal. However ... Not good for loft-mounted antennae!

There appears to be about 3 to 4 inches of snow lying on my roof.

I have documented my most recent project that allows a portable SSB QRP transceiver to transmit WSPR beacons from a portable location without a computer.

The project consists of a simple audio oscillator controlled by a Microchip 16F628 PIC that has the following capabilities:

- Internal timing or NMEA GPS timing for UTC synchronization of WSPR transmissions.
- RS232 input of the WSPR message.
- Line or microphone output.
- Symbol data output available to modulate a VXCO
- Low power consumption allowing battery operation

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