Return to KLUBNL.PL main page

rsgb_lf_group
[Top] [All Lists]

VLF: India 16.3 kHz long path

To: [email protected]
Subject: VLF: India 16.3 kHz long path
From: Markus Vester <[email protected]>
Date: Sun, 15 May 2016 14:55:38 -0400
Dkim-signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=mx.aol.com; s=20150623; t=1463338539; bh=XMHOONoA2WPsfrNla6LJTqIFVnFPYu8vbImjLEDM+h0=; h=From:To:Subject:Message-Id:Date:MIME-Version:Content-Type; b=yUgc1/77J/+LqY1j/sXDwYLUy6n/kvKu9YWui0nwU5zuHDbVYE3wCrpgS8TUbzBzp t8vIwFATOYd4/+ic/9FUG8ODPDC9emDVX+YyQeh8CGbUxhmZ1Q/KPd2Ehix+S51+NH efn8gzh1mZZvhZL/VaZ+ExYwLjWg0qTODidWMetw=
Reply-to: [email protected]
Sender: [email protected]
Moving the zoomed section of my VLF wideband spectrogram to 16.3 kHz, I noticed the familiar interference stripes from the superposition of short and long path signals. The periodicity is about 11.8 Hz here, corresponding to 25.4 megameters path difference (7.3  Mm direct vs. 32.7 Mm long path). The same effect is visible every day on 19.8 kHz, NWC from Australia (12 vs. 28 Mm).

Best 73,
Markus (DF6NM)

Attachment: vtx1_160515_2x.png
Description: PNG image

<Prev in Thread] Current Thread [Next in Thread>
  • VLF: India 16.3 kHz long path, Markus Vester <=