Look attached Files JPG
In the last few weeks I have operated from some places in France using my call and giving the QRA Locator of the spot.
So no I haven't lost my marbles and been giving wrong Locs.
Unfortunately WSPR does not send the full Locator or accept F/G3ZJO so often it appears that I did not move.
Some recent comments have been made regarding false info, I tend to agree that the whole system could be improved, as it is being slowly. At least reports of spots into the future are no longer accepted.
For reference operation was from.
June - Normandy JN091a
July 30 - Montgibaud JN05uu 350m ASL
July 31 - Davignac JN15am 800m ASL and August 1 AM
August 4 - Chastriex JN15im 1065m ASL and August 5 AM
The latter location had a super quiet noise level apart from on the hour when the church bell/clock, obviously solenoid operated, gave an S9 pulse of QRM for each clang of the bell.
August 12 - Nonville near Paris IN18jh 75m ASL and August 13 AM
This this is my first day on WSPR, RX only (for the moment)
So I've been having a listen around the bands.
I've got a question, how can I check the accuracy of my RX/TX frequency ?
Thinking out loud , next week there is a very big meteor shower (Perseid), with some long bursts, It could be an idea have a 'play' on the high bands. The peak is on the morning of the 12th August, But it will be active a few days before and after.
Robert F5VHN (nr Paris)
During the last few days, I have been experimenting on 30 meters with output powers as low as 20 microwatts. No one has spotted my 20 microwatt signal yet, but K8CXM has spotted my 50 microwatt signal at a distance of 553 KM at 2332UTC, 05 AUG 09.
A 100 mW beacon with a step attenuator to an indoor doublet was used for all the tests. All equipment is homebrew and the output power is verified with a HP-432A Power Meter. If you look in the database the power is reported as 0.100 watt because it was too difficult to pull out and reprogram the beacon’s PIC controller chip for each change of power. In any case, there are no provisions to report power levels below 1 milliwatt to the WSPR database.
Other noteworthy spots:
100 uW - K8CXM, 2252UTC, 05 AUG 09, -23 dB, 553 KM
200 uW - AI4SA, 0530 UTC, 02 AUG 09, -21 dB, 333 KM
500 uW - NJ0U, multiple spots 31 JUL & 01 AUG 09, -28 dB to -20 dB, 716 KM
500 uW - K1JT, 1440 UTC, 31 JUL 09, -21 dB, 1215 KM
500 uW - W3HH, 1240 UTC, 31 JUL 09, -28 dB, 764 KM
5 mW – VK6DI, 2232 UTC, 05 DEC 08, -27 dB. 17,858 KM
2009-08-05 15:58 ZS6Y 10.140215 -30 0 KG33wv +37 5.012 BY3A OM89ua 11782
Nice to see Chine fron Africa,
Also being heard by K1JT
I noticed on my pc a few days ago that I was running out of hard disk space despite the fact that I had not installed or saved anything large recently. I tracked the problem back to the folder where I keep the WSPR program.
The problem turned out to be that under the SAVE tag, the option SAVE ALL was selected rather than SAVE NONE. As a result, I had saved 8,300 .wmv audio files @2.3 MB each which took up 21.3 GB!
I'm not sure what the setting is by default when you first run the program? Possibly, I had selected the SAVE ALL when I was inputting my callsign and locator square thinking that I was saving those details?
If you are running the WSPR software for the first time, it might be no harm to check that you have the SAVE NONE option selected before your hard drive fills up ;o)
I have been running +37dBm to a G5RV @ 10M high. I have now dropped my output power to +33dBm and will be running this for the next 24 hours on 30M. Brad WF7T
Whisper with ATS-3b.
I implemented WSPR beacon transmit mode into ATS3bv-1.5 firmware. It is not the very first standalone WSPR beacon implementation, but it is the first WSPR beacon implementation for a stock
transceiver or transceiver kit. For those not familiar with Steve Weber KD1JV ATS-3b creation, it is a tiny 6 band CW/digital transceiver kit fitting into the Altoids tin.
My alternate firmware may be downloaded from
To get your ATS-3b rolling with WSPR, you will need to download ATS3bv-1.5 firmware, replace
beacon messages in the firmware with yours and flash your transceiver with the modified firmware. The beacon messages are generated by wsprgen application. wsprgen is a tiny windows application based on Mark VandeWettering's genwspr Python script.
I am just getting started with WSPR after reading about it in Radcom (journal of RSGB). I have receive only working at the moment using my FT-817 and SGC-2020. I will experiment with the different bands and see how I get on.
The 17m 3ele co-linear with ribbon feed for multiband operation was a disaster and the RG174 I used rather than RG58 for part of the radiator (because I had it and it's low-profile) stretched (!). So I cut out the coax sections and spliced the wire - Now resonant on about 11.5 MHz with 10.4m 300 ohm ribbon, then coax to shack. Covers 80-6m with tuner, 10 and 60 without. Seems to be quite alive with signals. losses appear fairly low on all but 12 and 80m. Will try day-about bands for a while, then re-trim to resonance at 10.14 and try again. (It's getting too dark right now for antenna trimming.)
I finally bit the bullet and applied for a new callsign - N6TTO, my call for more than 20 years, was a handful on CW and voice - takes awhile to say! So I opted for a shorter call - both in CW and phonetics!
N6TTO is now K6TU.
I think it's amazing !
I was testing today with 0,5W on 20m. After been spotted bij VK0 I was spotted by ZL2IFB. Unfortenatly my RX is not so good in the evening on 20m. Lots of noise here at the moment. Still very surprised by the results using WSPR just a few days.
I will be on 0,1W testing tomorrow on 20m.
After reading my friends blog,PE4BAS,i also wanted to try out WSPR.
First try out was yesterday and it was really nice.
Got W1XP here and he also did read me with 1watt output on 20M.
Nice program and nice way to find out in what area the propagation is.
73's and Good DX
DMC #1161 - EPC #3647 NL01 - HF #1508 - BCS #412 - OBC#131 - PODXS 070 #951
QSL via LoTW , Buro , Direct , eQSL
Thanks to Maurice M5ADZ for his help in setting WSPR up and to K1JT for an excellant bit of amateur software.
Cannot wait for first posting to group of low power contact.
Busy preparing rig and computer.
After having received reports with VK, VU2, CX2 and other DX stations, not only once, but at several times within a few weeks - which never happened to me before in my 33 years of experience as a ham operator - I got a report on my 20m signals from VK0BP at Antarctica, with 5W from my FT897 to a vertical dipole in a pine tree...
2009-07-29 03:56 SM0GXZ 14.097162 -23 0 JO99fd 5 VK0BP MC81xk 14983 154
Tnx Bob, for this first report from a new continent.
Antennas down - Landlady pruned the tree holding the 30m dipole up. Was working for a while on a sloper with ground-scattered counterpoise, but saw sense and dismantled it and put up a 3 element horizontal colinear for 17m. Which unfortunately doesn't work. As the feedline was routed through the shack door while in residence, I'm QRT until I hook something up to the old feedline for the 30m dipole.
Not yet tried this mode but intend to do so shortly.
As I had to update my Tom Tom navigation on the internet I had some time left at the same time to
install WSPR. At first I had some problems to get the RX noise level at 0dB as the built in RX/TX volume controls
do not work here in Vista. I had to adjust the volume at my modem. Then I was surprised and impressed that with only 1W I was received in India at 30m. This is really worth more investigation.
My blog: http://pe4bas.blogspot.com
For this activity period, I left the receiver on the 80m frequency from the afternoon of the 22nd to about 08:00 utc on the 23rd.
Antenna : A very low dipole only 4-5 metres above ground level.
As expected, lots of EU stations. Most running several watts so nothing special. 2 exceptions were G3NFP running 100mW (~440 kms) and G0VAX running 20mw (~390 kms).
To the East, VK6POP (10w) was heard twice which was a big suprise! This was about 90 minutes before my local sunset (20:38 utc)
Timestamp Call MHz SNR Drift Grid Pwr Reporter RGrid km az
2009-07-22 19:14 VK6POP 3.594118 -25 0 OF88bd 10 EI7GL IO51tu 15057 314
2009-07-22 19:02 VK6POP 3.594118 -26 0 OF88bd 10 EI7GL IO51tu 15057 314
To the West, 2 stations in the US were heard...K1JT (FN20) and W1BW (FN42).
The last spot for K1JT was approx 90 mins after any other European station. W1BW was running only 0.5w.