[amsat-bb] Re: Antenna Analyzer
tom.k3io at gmail.com
Sun Mar 6 21:59:21 PST 2011
In addition to the other alternatives described by WA4SCA, Let me also
suggest another nice VNA (Vector Network Analyzer) -- the Mini-VNA and
Mini-VNA PRO made in Europe and available in the US from
I got my Mini-VNA PRO last year at Dayton from W4RT and I find it to be
a most interesting widget. It is a full 2-port VNA covering the entire
0.1-200 MHz range. It is intended to be used with a Windoze computer (my
Lenovo Netbook is more than adequate) and normally connects via USB. The
USB port provides DC power, either to run the unit or to charge its
internal LiPO battery.
It is battery powered and can also interface via a wireless Bluetooth
serial port. One nifty thing here -- you can put the entire VNA at the
feedpoint of an antenna (very useful with an HF wire), hoist it into the
air and measure the intrinsic feedpoint impedance with NO cables
attached, making all measurements using the wireless Bluetooth connection.
Another useful additional function is that the PRO has two independent
DDS generators, one associated with each port. They can be programmed to
use as separate programmable test oscillators.
The Mini-VNA and PRO are of German origin and marketed by Wimo:
There is a nice writeup on the original Mini-VNA in the British magazine
that describes use of the VNA.
73, Tom K3IO
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