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Re: LF: Re: WSPR-2 on 630m this night

To: [email protected]
Subject: Re: LF: Re: WSPR-2 on 630m this night
From: Stefan Schäfer <[email protected]>
Date: Sat, 22 Jun 2013 01:06:18 +0200
In-reply-to: <36CA453D050E4596BD3499301A9D99BB@p1800>
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Hi Federico,

Thanks for the summary.
I think that 2...3 UTC is a bit late for a QSO, or a bit early, as you like to see it ;-)
This night is more realistic for SNR measurements as there are less lightnings on the path. I was running the TX during the complete day so if you left the RX running, there will be more decodes and so we will see.
I've been outside with some friends but now i'm here near the shack. My CW signal is stronger than my WSPR signal, so maybe there will be a chance. So if you like to try, even NOW, just give me a note here in an email. There is some QRN from the east though.

I saw no notes in the DX cluster about G100RSGB and i don't see anything on my grabber in the moment, so i'll stay QRV in WSPR-2 and will monitor the grabber  ( http://www.iup.uni-heidelberg.de/schaefer_vlf/DK7FC_MF_Grabber.html ) for CW signals from time to time.

73, Stefan/DK7FC

Am 21.06.2013 19:08, schrieb Federico:

Dr Stefan:

On the last night of DK7FC receptions in EA2HB WSPR were distributed as follows:

20h-1 Spot / 21h-4 Spots / 22h-4 Spots / 23h-2 Spots / 00h-6 Spots / 01h-2 Spots
02h-9 Spots / 03h-1 Spot

Spots of the 02 hours, plus the most numerous, were the most consistent in the SNR.

You estimate, reasonable use the Slot 02-03 UTC to try QSO, or perform a new test WSPR tonight to confirm trends?

The Slot 00-01 with 6 spots has not been bad, but the SNR was worse.

I hope your stories before you lose an hour of sleep to no avail.

73 Federico EA2HB

----- Original Message -----
Sent: Friday, June 21, 2013 1:32 PM
Subject: LF: WSPR-2 on 630m last night

MF,

To my big surprise there were 2 decodes at WD2XSH/17 last night on 630m. The QRN was terrible last night and there was a LOT of rain so the losses were high, hence the ERP was quite low!

Timestamp Call MHz SNR Drift Grid Pwr Reporter RGrid km az
 2013-06-21 01:18   DK7FC   0.475683   -27   0   JN49ik   1   WD2XSH/17   FN42pb   5927   294 
 2013-06-21 01:12   DK7FC   0.475683   -30   0   JN49ik   1   WD2XSH/17   FN42pb   5927   294 

It is the 21st of June, which is the shortest night in the year here! Anyway there was a propagation like in winter! Interesting. Could be due to the small area in darkness in the northern hemisphere? Once again, another example that shows it is alway worth to expect miracles!
BTW it's winter in VK! :-)

630m to Spain:

Also successful detections at EA2HB with best an SNR up to -19 dB, average about -23 dB. The database shows that the best time is arround 0 UTC. But due to the QRN, this night is not very representative. Anyway, promising!

Timestamp Call MHz SNR Drift Grid Pwr Reporter RGrid km az
 2013-06-20 22:30   DK7FC   0.475687   -19   0   JN49ik   1   EA2HB   IN93ah   1063   234 


73, Stefan/DK7FC


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