Re: LF: RE: 500kHz tonight

[Roger Lapthorn <rogerlapthorn@gmail.com>]

Thank you for the very interesting statistics Rik. 

My 500kHz WSPR beaconing has not been 24/7, so some of the times when you did not hear me may have been when the TX was off-air, usually during the daytime. When in the shack and not on another band I often put the 500kHz WSPR transverter on. Typically I am TXing at around 20-30% from around teatime until just after breakfast time, although I have not been on every night through the night until the last couple of days.

73s and thanks again.
Roger G3XBM

2010/1/8 Rik Strobbe <rik.strobbe@fys.kuleuven.be>

Hello Roger,

I have been almost 24/24 receiving wspr over the past days, a monitoring period of 126 hours between Jan 2nd 17UTC and Jan 8th 09UTC, what produced some interesting facts:

- over this a period of 126 hours I had 437 "hits" in your call, assuming you are transmitting at 33% cycle (ie 10 transmit periods per hour) this is 437 out of 1360 or 32%
- in the same period during darkness (between sunset+1h and sunrise-1h) I had 322 hits during 74 hours monitoring (= 322 out of 740 or 44%)
- in the same period during daylight (between sunrise-1h and sunset+1h) I had 115 hits during 50 hours monitoring (= 115 out of 500 or 23%)
- on Jan 3rd you faded out at 08UTC, I missed the fade in because I was QRV in CW till 20UTC
- on Jan 4th you faded out at 08UTC and faded in at 16UTC
- on Jan 5th you faded out at 10 UTC and faded in at 18UTC, some sporadic hits between 11UTC and 12UTC
- on Jan 6th you faded out at 10 UTC, missed the fade in because I was QRV in CW till 22UTC
- on Jan 7th you faded out at 09:30 UTC and faded in at 17:30UTC, a distinctive daytime peak between 12UTC and 14UTC
- best propagation seems to be between 07UTC and 08 UTC (average of 63% copy, based on 10 transmission/hour)

73, Rik  ON7YD - OR7T

At 10:15 8/01/2010, you wrote:

Let me update group members on the results to date with my 1mW ERP 500kHz WSPR station so far....

Since starting on 500kHz a few months ago with what is, by any measure, a TINY station in all respects (see my 500kHz page at http://sites.google.com/site/g3xbmqrp/Home/500k for more details) I've now managed to be received by a total of 63 different stations in 9 countries with the best DX being 960kms. Of these, 61 reports have been for my WSPR signal (all but two via the database) and two for CW contacts with Chris G3XIZ and Mal G3KEV. I much appreciate the SWL reports that have been received.

I'm still trying to beat a personal target of 1000kms but remain 40kms short still.

Whatever your views on WSPR it has been a massive incentive for me to keep experimenting on 500kHz. The on-line database Pete mentioned is so useful to me and other very low power stations as it gives almost immediate feedback on station improvements and propagation. Although I have tried to get a few CW QSOs it has been much harder going at 1mW ERP, as you would expect.

Although I was planning to go back to 28MHz, I'm staying on 500kHz for a few more weeks, not least as the antenna and roof are frozen, so there is no chance of taking it down to make changes!

Thanks for all the support and, if you are >1000kms from JO02dg I hope you have a good station and manage to winkle me out one evening soon, HI.

73s
Roger G3XBM




2010/1/8 M0FMT <m0fmt@yahoo.co.uk>

Hi LF

 

For those who don't yet know all the WSPR reception reports by suitably equiped stations are logged on a DATABASE. This is almost real time and can be filtered for BAND (say 500kc/s) and other parameters in the usual database way.

 

URL is ..... http://wsprnet.org/drupal/wsprnet/spots

73 es HNY petefmt

--- On Fri, 8/1/10, g3zjo <g3zjo@npton.plus.com> wrote:

From: g3zjo <g3zjo@npton.plus.com>

Subject: LF: RE: 500kHz tonight

To: rsgb_lf_group@blacksheep.org

Date: Friday, 8 January, 2010, 0:18

WSPR transmissions at the stroke of midnight, 08.01.2010, from various

stations, brought no less than 60 simultaneous reports from all over

Europe.

Eddie G3ZJO

--
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http://g3xbm-qrp.blogspot.com/
http://www.g3xbm.co.uk
G3XBM    GQRP 1678      ISWL G11088

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http://g3xbm-qrp.blogspot.com/
http://www.g3xbm.co.uk
G3XBM    GQRP 1678      ISWL G11088