Of course: Leakage, not noise. Thank you. :-)
--
Rune / 5Q5R
On Mon, 14 Oct 2019 at 22:59, Dr. David Kirkby from Kirkby Microwave Ltd <
drkirkby@...> wrote:
On Mon, 14 Oct 2019 at 19:13, Rune Broberg <mihtjel@...> wrote:
Preferably, with a 50 ohm load on both ports. If you only have one, put
it
on "ch1" (port 2 - confusing numbering).
Isolation tries to establish and cancel out the base level of noise in
the
passive channel of the device.
(At least that's how I've been taught it)
--
Rune / 5Q5R
Noise is a random error that can not be cancelled by the calibration
procedure.
The calibration procedure attempts to remove only systematic errors, one of
which is internal leakage between different parts of the VNA, or leakage
externally to the VNA. The isolation measurement attempts to remove the
leakage.
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
