Re: LF: 509KHZ CAPTURE Z and BL 25-01.jpg

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Re: LF: 509KHZ CAPTURE Z and BL 25-01.jpg

from [Roelof Bakker]

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To:	[email protected]
Subject:	Re: LF: 509KHZ CAPTURE Z and BL 25-01.jpg
From:	"Roelof Bakker" <[email protected]>
Date:	Mon, 25 Jan 2010 12:06:51 +0100
In-reply-to:	<6B20C5A86EA54AF3A298CCA35D49282B@ns94d01ae4d850>
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Hello Henny,

I see on your sceenshot that BL-410 has an extra "E".
This indicates that it is operating on its back up transmitter.

All NDB's have a back up transmitter that automatically is switched on
when the main transmitter develops a fault.

Monitoring stations will spot the "E" and have some maintenance personel
directed to the transmitter site.

73,
Roelof, pa0rdt

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