Dale Parfitt wrote:
"Peter" wrote in message
. au...
Hi all

I'm looking at purchasing an MFJ269 antenna analyser and keen to hear
experience of others in this group regarding this or similar analysers.
Appears to be ideal if it is as good as MFJ claim.


Hi Peter,

I can highly recommend the Rigexpert AA-200A:
http://www.rigexpert.com/index?s=aa200

Unlike the MFJ unit, this is a full vector analyzer. You can also save plots
and then transfer them to your computer for archiving. The lates firmware
allows measurements at both 50 Ohms and 75 Ohms and I believe one can now
also move the reference plane to the end of the coax. Batteries last
forever, it's about 1/4th the weight, can display data in both graphical and
tabular format.
I've owned the MFJ, Autek, AEA and Timewave- the AA-200A blows them all
away. Oh yeah, the signal source is synthesized and can make a very nice
signal generator that is rock stable.

Dale W4OP




Except that it looks like the RigExpert has an untuned detector, just
like the others. The schematic SUBVHF6.pdf shows a couple of RF
switches and a AD8307 log detector. The PLL synthesizers are up at 1+
GHz, so maybe there's a filter and mixer somewhere else. I couldn't
find a block diagram.