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RE: LF: T/A OPDS ... and more

To: <[email protected]>
Subject: RE: LF: T/A OPDS ... and more
From: Halldór <[email protected]>
Date: Sun, 20 Oct 2013 23:33:30 -0000
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Just got the OPDS working with a big help from Markus, one small backslash missing.

First time I see R7NT in Opera 32. I still have a 0,6Hz freq error.

 

73

Halldór

TF3HZ

 

DF6NM JN59NJ Opera-32 correlation     http://df6nm.bplaced.net/opera/opds.zip

 

   date      time   call   distance  frequency bandwidth  snr    correlation

 

2013-10-20 23:33:08 R7NT    4051km 137591.612Hz   6mHz -49.8dBOp  83% 15.2dB

2013-10-20 23:27:22 DK7FC   2440km 137560.560Hz 143mHz -26.1dBOp 100% 22.3dB

2013-10-20 21:00:30 DF6NM   2549km 137570.634Hz   8mHz    .0dBOp  36% 18.5dB

2013-10-20 20:39:57 DF2JP   2195km 137556.130Hz  20mHz -31.4dBOp  98% 19.2dB

2013-10-20 20:26:26 DK7FC   2440km 137560.498Hz   3mHz -27.8dBOp  81% 21.3dB

 

From: [email protected] [mailto:[email protected]] On Behalf Of Markus Vester
Sent: 20. október 2013 22:31
To: [email protected]
Subject: Re: LF: T/A OPDS ... and more

 

Jay, John, LF,

 

if all stays well here, I intend to start sending one Op-32 sequence on each even hour, ie. 0, 2, 4, 6 UT. This should leave plenty of time inbetween for unobstructed watching.

 

Best 73,

Markus (DF6NM)

 

 

Sent: Sunday, October 20, 2013 11:19 PM

Subject: Re: LF: T/A OPDS ... and more

 

John,

 

regarding Op-32, Europe is currently as active as a lively bee-hive:

 

But anyway, it would be just great if you could insert a few high power transmissions! After all, your transmission on August 27 last year was the one which started the Opera correlation development: df6nm.bplaced.net/opera/xes/xes_correlation_wd2xes_balanced.png

 

Don't know how much it would affect Jay if you ran full throttle. Here I have drawn up a 137560 Hz, 30 dB notch in SpecLab's FFT filter, which attenuates DK7FC just enough to avoid desense but still detects him alright: http://dl.dropboxusercontent.com/u/26404526/notchfilter.png

 

In the future, maybe we can agree on some crude time division scheme, eg. even hours East->West, odd hours West->East ?

 

Best 73,

Markus (DF6NM)

 

 

Sent: Sunday, October 20, 2013 11:03 PM

Subject: Re: LF: T/A OPDS ... and more

 

If any of the EU OP32 stations are active tonight, I will be running a
very QRP signal on WD2XES so that Jay and I can play receiving games. If
there appears to be no transmitting interest at the EU end, I can put a
1W ERP signal on 137.520 or thereabouts.

John, W1TAG/WD2XES

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