[UK-CONTEST] Was NFD originally an emergency capability test?

Andy Summers g4kno.mail at gmail.com
Wed Jun 8 03:29:03 PDT 2011


Interesting thread.

Depends on what you define as a 'receiver'. Whilst it's true that the normal
definition of a receiver doesn't preclude multi-signal reception (it's just
apparatus to turn RF into human readable form), I think it then becomes a
nonsense to talk about a second receiver not being allowed in the Restricted
and QRP sections.

Your definition of 'receiver' leads to a definition of 'transmitter' that is
allowed to transmit more than one signal at a time on different frequencies.
I note however that this is specifically excluded in the General HF Rules.

I can see how you can argue your viewpoint, Dave, but I don't share you
certainty.

73 Andy, G4KNO.

On Wed, Jun 8, 2011 at 9:56 AM, Dave Lawley <dave at g4buo.com> wrote:

> > From the rules as currently drawn, it appears local Skimmer use is
> precluded
> > in both the Restricted and QRP sections due to only one receiver being
> > allowed.  (Two in the case of a transceiver with built in second
> receiver)
> > The limit of a single antenna would anyway provide a further challenge.
>
> Not true Bob, as I put in my G3RCV/P writeup you could run a Skimmer
> from the IF of your rig. Pausing from TX for say 30 seconds would give
> it time to find a great number of CQing stations. Further, I suspect
> this capability may become standard in SDRs in a few years' time.
>
> Ironically, a tight first IF roofing filter will limit the range of the
> Skimmer. So, you make it switchable.
>
> 73, Dave G4BUO
>
> _______________________________________________
> UK-Contest mailing list
> UK-Contest at contesting.com
> http://lists.contesting.com/mailman/listinfo/uk-contest
>


More information about the UK-Contest mailing list