[TowerTalk] VNA2180 CM Test Jig
Martin A Flynn
maflynn at theflynn.org
Wed Jan 10 06:59:16 EST 2018
On 1/9/2018 9:52 PM, Martin Sole wrote:
> Yet they must be made. Bird, who may well make them for their own use
> mind, uses a 'N' - male 4 hole flange mount on some of it's dry dummy
> loads and maybe other products. I suppose if you really needed them :)
> Martin, HS0ZED
> On 10/01/2018 09:33, Paul Christensen wrote:
>> Owners of the VNA2180 vector network analyzer may have an interest in a
>> simple CM test jig I created using DipTrace PCB software. I recently
>> ordered a set of boards from Bay Circuits and if it works as planned,
>> make the Gerber files available free of charge through my QRZ.com page.
>> The board measures 3.3" x 0.75". A pair of in-line male BNC connectors
>> mount flush to the PC board. These are scarce items but can be found
>> on the
>> auction site. To the best of my knowledge, neither Amphenol, nor any
>> large-scale RF connector manufacturer makes these special connectors,
>> especially in an N style. That forced me to use male BNC PCB connectors
>> which will adapt nicely to a common female BNC-to-Male N between-series
>> adapter. I noticed that G3TXQ did something similar with his jig;
>> he ran into the same issue.
>> The board is single-sided copper and solder-masked with ample pour
>> protection between the BNC center pin and surrounding ground plane.
>> Connector centers are 2.5-inch to match the N connector spacing on the
>> VNA2180. More info after the boards arrive...
>> Paul, W9AC
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