To: | [email protected] |
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Subject: | Re: LF: 24.0 kHz sig - NAA? |
From: | John Rabson <[email protected]> |
Date: | Wed, 8 Aug 2018 18:32:28 +0200 |
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How times change. In the late 1960s I received NAA on a hot summer afternoon in the town of Harlow, about 30 km north-east of London. The antenna was an L about 80 m in length and the receiver was an ex-Navy unit which covered from 15 to 750kHz (B29?). 73 John G3PAI F5VLF > On 8 Aug 2018, at 17:49, DK7FC <[email protected]> wrote: > > Hello Genosse Roman, > > NAA should be centered exactly at 24 kHz, like DHO38 is at 23.4 kHz. It can > have strong QSB and appears only a few hours per day. Here it appears arround > 4 UTC these days. > My grabber and all webpages do not work in the moment due to a webserver > problem which may be solved just next week... > These narrow traces are something else, NAA always looks like DHO, about 200 > Hz wide. > > 73, Stefan > > Am 08.08.2018 14:15, schrieb Roman: >> Hello Genossen VLFers! >> >> Pse, look R6LDD screen at russian forum. >> What's a station? NAA or not? >> >> http://136.su/index.php?action=dlattach;topic=393.0;attach=18220;image >> >> The theme: >> >> http://136.su/index.php/topic,393.msg21804.html#msg21804 >> >> > |
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