Return to KLUBNL.PL main page

rsgb_lf_group
[Top] [All Lists]

LF: decca 5501

To: "rsgb" <[email protected]>
Subject: LF: decca 5501
From: "mal hamilton" <[email protected]>
Date: Wed, 13 Jun 2012 18:29:44 -0000
Reply-to: [email protected]
Sender: [email protected]
MF
Now that MF is shaping up with DL permits and others. If you can find a DECCA sub unit 5501 it takes less than a couple of hours to modify/ adapt for the 472 Khz band. In round figure values all that is needed is a 22uH in series with 5 nF C. Adjust L for frequency of interest of centre of band. A matching transformer is then required to match approx 5 Ohms to 50 Ohms and LPF to the antenna.
I use an old tube TV LOPT and it works  well with good efficiency.
A couple of hours work and you can be on the new 473 band. A loaded inv L antenna and you are in business.
73 de mal/g3kev
 
 
 
<Prev in Thread] Current Thread [Next in Thread>