[UK-CONTEST] Extra 100KHz on 40M - What does Non-interference basis mean?

[Alex G3ZBE]

Extra 100KHz on 40M - What does Non-interference basis mean?

It looks like we may get the 100KHz extension to 40M soon, as a
“Secondary user on a Non-interference” basis (I think that was the
correct phrase).

Yesterday evening at about 20:00z, I tuned across 7.1 to 7.2MHz using my
500Hz CW filter to see where I could conceivably work a fellow amateur.
I could just about kid myself at a couple of points that there was a
space (S7!).  But just what does “non-interference” mean.  I’m sure if I
were to call on one of the aforementioned “spaces” and anyone was
listening to the adjacent broadcast station with a broadcast receiver I
would certainly cause interference to the listener!   Would I then be
failing to operate on a non-interference basis?  I would imagine that
the broadcasters are going to be there for a long time yet. So just what
is the situation?  Or is this one of these questions I shouldn’t ask :0)

Alex

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Member of: RSGB, ARRL, CDXC, GMDX group,
G-QRP, DeMontfort A.R.S.
Remember....It's just a hobby!
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