The Weak Signal Propagation Reporter Network is a group of amateur radio operators using K1JT's MEPT_JT digital mode to probe radio frequency propagation conditions using very low power (QRP/QRPp) transmissions. The software is open source, and the data collected are available to the public through this site.

looking for kp4ed here.

My G3020 is finished since some weeks but to get the software in order took some more days. Biggest problem was Windows 7 and the Software, also the driver for the EMU-0202. So I downgraded a laptop to XP again. The software is now fine and since yesterday evening european time the Genesis 3020 is finally receiving. I am QRV at 30m.
If I find the time today I will try to get it also to send some beacon.

UN SALUDO PARA TODOS
73, Rafa EA4CU

I also work in the same office as M0SAR
And he got me interested in WSPR, I'm going try on 10m 14/4/10
and see where i can see.....

73 De G7VQV Allan Nr Southampton

... for getting me interested in WSPR, that is.

The Echelford Amateur Radio Society (Surrey, UK - http://beam.to/ears) was fortunate enough to have Walter as guest speaker last Thursday (8th April, 2010), explaining the ins and outs of using WSPR, in a most entertaining and informative manner. I had to give it a try.

Anyone in Europe on 6M today, I am TXing on 6M 5W,

73
Rob
MW0CVT

Been monitoring and able to hear a few stations here and there.
Has anyone heard any of my transmissions yet?
Only running QRP (2 Watts - ish) I assume that is within the criteria.

I am now testing the "wrong band reported" piece of the data scrubber. A quick check seems to indicate that it's correctly identifying all the cases reported to the forum over the last few weeks, and well as quite a few others.

Some quick statistics on the data filtering based on the last two weeks of data:

Bad calls (bogus decodes): 0.1% of all spots
Bad timestamp: 0.1%
Duplicate reports: 1.7%
Wrong band: 0.6%

So, about 2.5% of spots are being filtered. Duplicate reports include multiple reports of same station in same band by same reporter at same timestamp, so if you are gettting mutliple decodes of same station in the passband because of heterodyning in the rx or tx, this filter will keep only the strongest report.

Since the wrong band percentage is low (<1%), I'm inclined to just delete the incorrect band reports rather than try to fix them in place. The data is always there to do that later if it is somehow important.

Note for stations running simultaneous multiple tx or multiple rx in one band:

These few spots slipped through when I was changing from 30m to 60m at 08:16 on 07 APR 2010

I have (finally) implemented a data scrubber for the spot database. It currently handles several situations:

1) identifying and deleting bogus spots (bad callsigns)
2) bogus timestamps (delete if too old or fix if odd-minute report)
3) remove duplicate spots of same station on same band by a reporter, such as those caused by power line noise in tx or rx (it keeps the strongest report in a given time slot)

2010-04-04 16:16 G6HHP 10.140193 -13 -1 JO01hn 5 ZL2IFB RF80hl 18641 15
A record for this station - would like to make it 2 way , but, in the middle of a town not always possible.
There is hope yet for G6HHP and his 50 W and long wire (running N-SOUTH).

My log

73's from Phil

IN88XM Dinan
West part of France

Here is the text from the database

2010-04-02 17:38 G6HHP 10.140191 -18 0 JO01hn 5 VK2/VK6DI QF55hf 16984 64

I was pleasantly suprised to see this in the database this am.

I run abt 50 w into a lomg wire at 15 m agl - only have a small garden out back so restricted.
Also run an Isotron ant for 40m

Is this Long path or Short path ?

73 de Stan G6HHP / M0CZI SOUTHEND ON SEA , ESSEX , ENGLAND.

I am setting up my 600M receiving station, using a small loop antenna, homebrew pre-amp and my HP3586B Selective receiver. I am also setting up a BC-453 receiver for 500kc as well. (Now you know how old I am) Hertz still sounds funny! The rest of my station is composed of several Swan transceivers, a Yaesu FT757, FT-60, and miscellaneous homebrew receivers/ oscillators/ and other projects.
I am limited in space for full size antennae below 40M, but have my 5btv 18AVQ for those.

More to come.....

Pages