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Author Topic: PocketVNA Any idea what its like?  (Read 13320 times)

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Online Kalvin

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Re: PocketVNA Any idea what its like?
« Reply #50 on: June 26, 2017, 10:07:31 PM »
Everyone seems to be building 2 port VNA's.  My personal view is that this is just because there are now some really nice RF IC's available at low cost, and engineers are thinking "great IC, lets build a 2 port VNA).

Even Pico Technology have just built one.  They certainly have their uses, but most seem to be destined to become posh VSWR meters.

What would be really useful is a USB connected (powered via mains!) 4 port VNA that goes from 300KHz to 6GHz (to replace my aging 8753C).....

This doesn't go down to 300 kHz but nevertheless inexpensive and nice design with detailed explanation:

http://hforsten.com/cheap-homemade-30-mhz-6-ghz-vector-network-analyzer.html

With some improvements:

http://hforsten.com/improved-homemade-vna.html

The design files can be found in the Github.
 

Offline fcb

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Re: PocketVNA Any idea what its like?
« Reply #51 on: June 27, 2017, 05:57:14 AM »
That's a really impressive project - might be very interesting if he does a third version.

300KHz is overkill - but 30MHz still very usable as the bottom end.
 

Offline Wirehead

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Re: PocketVNA Any idea what its like?
« Reply #52 on: August 10, 2017, 06:55:19 AM »
It seems Martin quietly released a beta version of the new pocketVNA software. Much improved calibration screens and methods.. I'll give it a go tomorrow :)
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