[600MRG] Fwd: TM1LY and TM100LY Lafayette Stations on the Air.

[Bart Lee]

Repost ##
---------- Forwarded message ---------
From: Bart Lee <bart.lee.k6vk at gmail.com>
Date: Sat, Dec 19, 2020 at 5:48 PM
Subject: Fwd: [600MRG] TM1LY and TM100LY Lafayette Stations on the Air.
To: Staples John <john at w6bm.com>, John Stuart <j.w.stuart at comcast.net>,
Gilles Vrignaud <gillesvrignaud at yahoo.com>, Dennis Monticelli <
dennis.monticelli at gmail.com>, Robinson Scott <spr at earthlink.net>


The 15 KHz antenna at the Lafayette megawatt federal arc in about 1920; see
pix.

73

##
-- --
Bart Lee

---------- Forwarded message ---------
From: Bart Lee <bart.lee.k6vk at gmail.com>
Date: Fri, Dec 18, 2020 at 9:34 PM
Subject: Re: [600MRG] TM1LY and TM100LY Lafayette Stations on the Air.
To: D.J.J. Ring, Jr. <n1ea at arrl.net>
Cc: Posting 600m 600mrg <600mrg at mailman.qth.net>


Correction to previous post:

DR, A photo at the bottom right shows the antenna for the megawatt arc at
Bordeaux circa 1920+.  It looks like a radiating vertical lead system, a
narrow "V" --  into the leading edge of a large rectangular capacity hat,
like a Marconi [inverted]  "L" but spread out. So the towers look to be
isolated from ground and so did not radiate. The direction of emission
would be to the observer (and camera). For U.S. Mid-Atlantic (*e.g.*,
Annapolis, MD), the direction would be East-NorthEast of Bordeaux
(great-circle). This could be verified if there were a lay-out map
available of the transmitter and antenna, but that's what it looks like in
the small diagram. There had to have been a very large ground-screen under
the antenna system.

73 de Bart, K6VK ##
-- --
Bart Lee

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