On 4/15/2021 6:21 PM, VE6WZ_Steve wrote:
For 15 yrs at VE6WZ I have used both the MFJ-1026 and NCC-1 to eliminate local
noise at my city QTH.
I show the theory of how these boxes work, and present some tips on set-up and
adjustment to achieve success.
This is a HOW-TO video for those unfamiliar with these devices.
As part of my app note on the VE3DO RX loop, I showed how the NCC-1 can
be used to steer a spaced pair of them, and included response
measurements of the NCC-1 for the range of their settings on ham bands
up to 20M. Measurements are complex (that is, magnitude and phase of the
gain), done with a VNWA-3EC. http://k9yc.com/VE3DO.pdf As described in
the app note, I have two loops oriented to central EU, spaced 5/8 wave
on 160M, which seems to be optimum for that band.
The NCC-1 is a very well behaved unit.
73, Jim K9YC
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