"Bob Nielsen" wrote in message
...
On Fri, 31 Dec 2004 20:52:10 GMT, Dale Parfitt wrote:

"Kristinn Andersen, TF3KX" wrote in message
om...
Hi - I am looking for an impedance analyzer. Primarily for antenna
measurements (only 1,8-30 MHz) and secondarily for misc. lab
measurements (L,C,Q measurements, signal generation, etc.). The
possibilities I have been looking at are (in no particular order,
prices approximate):

a) MFJ-259B ($300)
b) MFJ-269 ($220)
c) AEA VIA ($600)
d) Autek VA1 ($200)
d) Micro908 kit from AmQRP ($210)
e) N2PK Vector Network Analyzer project ($150)

Comparing the N2PK VNA to the others is not quite fair as it is in a
league
by itself- like comparing a go cart to a BMW.

Maybe not a league of its own--for another VNA (not out yet, but
hopefully soon), see http://www.tapr.org.

I looked at this at Dayton- from memory, I seem to recall the dynamic range
was nowhere close to Paul's design and software at that time was rather
crude. I'll look again, but for the price, Paul's design is hard to beat-
accuracy right up there with the Agilent 40 Gigabuck units.
Dale W4OP