On Wed,7/8/2015 6:22 AM, Roger Parsons via TowerTalk wrote:
I have a SARK110. It is beautiful!
Here's what I've been using for about 3 years.
http://sdr-kits.net/VNWA3_Description.html
Note that it's a full Vector NETWORK Analyzer, and that it goes to 1.3
GHz! I have the 3E, which has a two-channel USB sound card. All the
processing is done in the computer. The 3E gets its power from the USB
bus. It saves data in Touchstone format, so it can be imported by
modeling programs like SimSmith and AC6LA's ZPlots and TLDetails.
Because it's a full NETWORK analyzer, you can do a LOT more with it. You
can, for example, measure and tune filters while simultaneously looking
at the frequency response, the VSWR, and the return loss. You can
measure the isolation between antennas, the characteristics of preamps,
and so on.
I paid about $720, shipped to my door, with a carrying case and
calibration kit. If I were doing it again, I would skip the case. The
unit is VERY well supported in a Yahoo Group both by the vendor in the
UK and the German prof who designed it. Software and firmware is under
continuing development, and has been bug free.
73, Jim K9YC
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