View Single Post
  #1   Report Post  
Old March 5th 04, 06:17 PM
peter dingemans
 
Posts: n/a
Default LOG-PER: PCB-layout of LOG-PER by WA5VJB ?

G'day everyone,

(first post on this group)

Awhile ago, I came across a log-periodic antenna (sold by Ramsey
Electronics) for the UHF-range (900-2600 MHz). It was a PCB, with the
shape of a log-per etched in copper. The design was by WA5VJB (Kent
Britain, judging from the 'hits' on google ?)

Anyway, I'm planning on building such an antenna, but can't seem to
find the pcb-layout. Is this because it's 'proprietary' ? (at least
many other Ramsey products are public, like their Doppler RDF, which
is exactly as described in QST).

So, does anyone have a PCB layout for these antenna's (there are 2
designs, for different freq.ranges)? Or, if they're on the net, does
anyone know where? I can't seem to find them...

(or, has anyone built one/bought one, and is it worth the trouble of
making one? Gain of a log-per isn't very high, and a Dipole is quickly
made...)

73,

Peter Dingemans,
The Netherlands.