Return to KLUBNL.PL main page

rsgb_lf_group
[Top] [All Lists]

RE: VLF: SAQ Test

To: <[email protected]>
Subject: RE: VLF: SAQ Test
From: <[email protected]>
Date: Sat, 29 Sep 2018 11:42:29 -0400
Dkim-signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=comcast.net; s=q20161114; t=1538235751; bh=uh2tqaiAQiBHdpNSX2whLOIGyrVJ50S9vJ/ux+WKUYY=; h=Received:Received:From:To:Subject:Date:Message-ID:MIME-Version: Content-Type; b=eq1w833ZklEpsEN1ZyIvKd9U//UASy3BPT9BuJGgKej3If0anP9eN/g7rF3mi9uIo ajSn4UrKkzTlUi0w6I8cUwsO13Hh+wGyXGxA5fsKF41JgB9x1f+HbwzAa0njLAwe/1 0/3j1NAurAM2XOJrc09g1BVdahMW1WYaTQSPATM+NO6K5F0JkliFbqCMOszsRMsmLc My/ZsykcM9LSppwjqgbMYTZunB3s7lzQxiJ0H41xr84AqK0+O9nf6bC+Yr/fLotOA2 6EX+9QG25p0NonFcXXqpdlVI2IKqlIsUT0/VJ+mywM/K8DpyrQHPdS2tYyk8nTwI26 gfnH+DPIuDR8Q==
In-reply-to: <[email protected]>
References: <[email protected]> <[email protected]>
Reply-to: [email protected]
Sender: [email protected]
Thread-index: AQHJqGctHst4bhN9xPr8udp6RiEIa6Uct6bQ

Markus,

 

Thank you, a fine plot of a great machine at work.

 

Nice captures by Peter and Romero.

 

LWPC says ~ 1.8fT in Moonah (180928 1630) per root-watt ERP, nice work Edgar and SAQ.

 

73,

 

Jim AA5BW

 

From: [email protected] [mailto:[email protected]] On Behalf Of Markus Vester
Sent: Saturday, September 29, 2018 3:35 AM
To: [email protected]
Subject: Re: VLF: SAQ Test

 

Good point.

During tuneup, the speed of the alternator is manually adjusted using motor resistors and a frequency counter, but it is never perfectly constant. I have temporarily shifted the zoom on my grabber from NML to SAQ's frequency (see attached screenshot, with colours swapped from blue to green for better visibility). Between several sudden frequency excursions we can see a general upward trend, perfectly matching that in Edgar's spectrogram.

Jan Steinbach from SAQ has sent an email confirming the Sep 28 test transmission.

Best regards,
Markus (DF6NM)

.

-----Ursprüngliche Mitteilung-----
Von: hvanesce <[email protected]>
An: rsgb_lf_group <[email protected]>
Verschickt: Sa, 29. Sept 2018 5:06
Betreff: RE: VLF: SAQ Test

It looks like the SAQ received signal frequency ramps upward ~ 25 Hz (over the 16:25 – 16:45 UT period) at Edgar’s QTH.

On Peter’s spectrogram I can’t see a frequency change but the resolution of the spectrogram appears to be 100 Hz.

Was the transmitter frequency probably ramping during the test?

 

73,

 

Jim AA5BW  

 

 

From: owner-[email protected] [mailto:[email protected]] On Behalf Of [email protected]
Sent: Friday, September 28, 2018 6:42 PM
To: [email protected]; [email protected]; [email protected]
Subject: AW: VLF: SAQ Test

 

Yes Edgar thats it, a dash at the right time and frequency.

73, Markus 


------ Originalnachricht------

Von: Edgar

Datum: Sa., 29. Sep. 2018 00:35

An: [email protected];[email protected];

Betreff:Re: VLF: SAQ Test

May be?



Regards, Edgar
Moonah, Tasmania.

 

<Prev in Thread] Current Thread [Next in Thread>