Return to KLUBNL.PL main page

rsgb_lf_group
[Top] [All Lists]

Re: LF: Topband Test

To: [email protected]
Subject: Re: LF: Topband Test
From: Andy Talbot <[email protected]>
Date: Thu, 3 Mar 2011 19:14:49 +0000
Dkim-signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:in-reply-to:references:date :message-id:subject:from:to:content-type; bh=pYh32m51s5MtDCFeOXl5oAvmsu56izYPyjbsrUBPjpk=; b=KtqohZoU+2b9Qy+q/IkMJeTMwJTzWDE5FlcnbxZnEn1cDeXYY51PNLwgudAH5X01Fl 8DCCKSKT6T6gpdGRCw95m8rJJBxlLYZN6/m0M4Dczf3D7tkyKiN05jPXG8gT49dBl0nN W+fpxX3PcDDDDP/sv6wWlQ2haY90VeYoBjBHI=
Domainkey-signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :content-type; b=aaYb3kcuu6pWDsyNI8ct86CTR10DfJoaf7BDW8ktUJW4j2xWHVmnDCmtft6zTBmUJc YUnWVyavIUaDc5XvW/wn1Qonej2+SMthg1wywikAOnRg3WQzPqb/yO4LKBsT+LrYuEYP qFMDCiiwKOdSEZ/phGFyUvyQ8KeFl813wcklk=
Domainkey-status: good (testing)
In-reply-to: <6C9E0C3D501744C99E11539B7AFCB120@IBM7FFA209F07C>
References: <6C9E0C3D501744C99E11539B7AFCB120@IBM7FFA209F07C>
Reply-to: [email protected]
Sender: [email protected]
See the article on Dopplergrams published by G3PLX in Radcom some time around 1998 - 2000. (No record of teh exact publication date).   Many plots of low-HF carriers splitting into two.
   
We had to use a separate DSP card to do narrow band monitoring in those days
 
Andy


 
On 3 March 2011 18:55, Chris <[email protected]> wrote:
Hi All,
Yesterday evening Pete, M0FMT, transmitted QRSS on topband for a test. An unexpected effect was noticed with the trace splitting in two. Nothing new or 'earth shattering' I expect, but new to us and worthy of further experimentation.
See the result and conclusion on my website http://qsl.net/g4ayt on the bottom of page 1.
I have never seen this effect on 137, even with quite strong audible signals, maybe others have.
Vy 73,
Chris, G4AYT, Whitstable, UK.

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