[TowerTalk] VNA2180 CM Test Jig

[Martin A Flynn]

http://www.cosmtec.com/products.asp?Page=3&pname=N+RF+Connector&pfid=4&flev=2&puid=14&N+RF+Connector.htm

Martin, W2RWJ


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, 
>> I'll
>> 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 
>> other
>> 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; 
>> perhaps
>> 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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