On Thu, Oct 10, 2019 at 09:33 AM, Dr. David Kirkby from Kirkby Microwave Ltd wrote:
1) Minimum loss pads can be used to allow calibration with 75 ohm
calibration kits. There are 75 ohm versions of both N and BNC connectors,
and calibration kits for both available. The F connector is only 75 ohms
and calibration kits for F - my company has both mechanical and electronic
kits for F.
David,
Could you give the group a short form on how this is done, and what a NanoVNA user would do and see to measure something like a piece of RG6 or a 75-300 ohm transformer? Not to take away from your sales, but what kind of error would a pad made from 1% carbon resistors introduce, compared to a commercial pad?
Starsekr