[NLRS] Anybody have experience with multi-band feeds?

[David Palm]

I have been corresponding a bit with WA5VJB about the use of one of his
log-periodic yagis as a multi-band feed for a dish.  (He actually
recommends  using one of his newer Vivaldi PCB antennas, which he says
should be a bit easier to connect and a bit more efficient in this role.)

I realize that this is at best a compromise solution on every band, but it
is extremely attractive to me for a rover set-up to be able to use the same
dish from, say, 2.4 - 10 GHz.  I was thinking that I'd try to build a loop
yagi for 2.4 GHz and try using the multi-band dish on 3.456 MHz and up (if I
get the equipment working in time.)  But you get the drift.

I've read the article that Paul Wade, W1GHZ wrote about this (
www.w1ghz.org/antbook/conf/WA5VJB_LPA_feed.pdf) and the two take-aways from
that were that 1) it should work and 2) it seems best to optimize the system
for the highest band and then just take your lumps on the rest.

I'm wondering if anybody has any experience on this that they could share?
I'm interested in having something ready for the August contest and am
starting to plan now.  If you have other suggestions for multi-band antennas
for the rover, I'd be very interested to hear your suggestions.

73,

David  W9HQ