Hi Roelof,bedankt voor je bericht,helmaal begrepen,
73s
henny pa3cpm.
----- Original Message -----
From: "Roelof Bakker" <[email protected]>
To: <[email protected]>
Sent: Monday, January 25, 2010 12:06 PM
Subject: Re: LF: 509KHZ CAPTURE Z and BL 25-01.jpg
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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