I have been considering the possibility of making a case for my NanoVNA,
with a size sufficient to take any likely NanoVNA variation.
My plan so far include
* Don¡¯t worry about size - I don¡¯t want to put it in my pocket.
* Using N connectors for the test ports
* Bring decent quality switches and USB port onto the case.
* Use large capacity battery - probably 3.2 A hr.
Just because I can do, rather than any real need, I was thinking of putting
calibration kits on the sides and bottom. Kits I intended including include
N, SMA, APC7, 7-16, F and BNC, although the latter is not something I am
currently in a position to do.
The plan was to have a female N connector on the side for the female
calibration standard, rather just have somewhere to store a male standard.
Using techniques I don¡¯t use on the commercial calibration kits I sell, I
should be able to get reasonable performance to 1.5 GHz without breaking
the bank.
The biggest problem I see with this plan is that it would be impossible to
calibrate anywhere without a cable. I could not calibrate to the female N
test ports with male N standards, if the male N calibration standards are
attached to the side of the case.
Can anyone think of a way around this problem? I was considering the
possibility of putting the calibration standards on a steel plate, which
would inset into the case with magnets, but which could be removed when
wanted. But I don¡¯t like the idea of being able to drop the calibration
standards, which even in 1.5 GHz specification would cost more to make than
the NanoVNA cost.
I am just wondering if anybody can think of a solution to the problem -
other than don¡¯t be so stupid in the first place!
Dave
--
Dr. David Kirkby,
Kirkby Microwave Ltd,
drkirkby@...
Telephone 01621-680100./ +44 1621 680100
Registered in England & Wales, company number 08914892.
Registered office:
Stokes Hall Lodge, Burnham Rd, Althorne, Chelmsford, Essex, CM3 6DT, United
Kingdom
