----- Original Message ----- From: "MC Carpenter" <[EMAIL PROTECTED]>
To: "Bob W7AVK" <[EMAIL PROTECTED]>
Sent: Saturday, November 27, 2004 3:04 PM
Subject: Re: [Elecraft] directional antenna


yes you got it on the nose, I'm surprised so many people remember that stuff, I had a directional radio finder on my first boat, I just found out that the beacons still exist all along the coast at almost all the inlets. plus we used to home in on AM broadcasts like 1520 AM or 670 AM on the dial. I have a short wave radio so I thought it would be fun to build a directional antenna. But this ancient technology does not seem to have any "today's" directions. I went back to my oldest HAM BIBLE but its a 1987 so its not much help. thanks Mike


----- Original Message ----- From: "Bob W7AVK" <[EMAIL PROTECTED]>
To: "MC Carpenter" <[EMAIL PROTECTED]>
Sent: Saturday, November 27, 2004 1:02 PM
Subject: Re: [Elecraft] directional antenna


MC - Not sure of your question.

!] Are you looking for information about the LF Beacons and the antennas they used in the old days?

They weren't directional, but got beams by phasing several verticals. Also modulation techniques were used for the A and N ranges.

2] Are you looking for data on how to build an antenna for DFing in the LF band?

For this one I'd suggest you google loop stick antenna or Ferrite Core Antenna. Like what were in the solid state raidos of old.

Good luck,

73  Bob  W7AVK



MC Carpenter wrote:
does any one know where I can get the instructions for a good directional antenna for 150 to 281 kHz., code beacons used for air and marine.
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