Quote:
Originally Posted by Bazz4CQJ
My own FET-based unit does strange things when using it to trim aerials to length. It dips at frequencies which don't make sense and the dips are different (strangely narrow) from its normal behaviour.
|
[Quote slightly edited for brevity].
I assume that you are aware that the extent of the physical coupling from a GDO coil to the cct. under test (in your case, the aerial) will have an impact on the indicated resonant frequency?
Al.