On May 6, 5:12 am, "Ivor Jones" wrote:
,
typed, for some strange, unexplained reason:
: Secondary status means no interference need be
: tolerated by the primary.

I should have been more clear, and qualfied the above as "here in the
USA"

Not always, we're the primary users of 2m over here, but we can't complain

about interference.

: There used to be a 50 watt limit on 420-450 MHz for amateurs due to
: the possibility of interference to radar.

Don't recall we ever had that over here, but I may be wrong.

It was a US restriction a long time ago.
:
: It used to be that we hams were a corps of operators who could
: be pressed into service quickly during a war or other crisis.
:
: That's still the case. But it doesn't mean that the primary users of a
: band have to put up with interference from secondary users.

Ah, but who is the primary user..? Here it's the military. Amateurs have
to put up with anything and everything. On all bands.

Well, here in the USA amateurs are definitely the secondary users of
420-450 MHz.
So while we can complain, we don't have the same "standing", as it
were.

73 de Jim, N2EY

In ,
typed, for some strange, unexplained reason:
: On May 6, 5:12 am, "Ivor Jones" wrote:
:
,
: typed, for some strange, unexplained
: reason:
: : Secondary status means no interference need be
: : tolerated by the primary.
:
: I should have been more clear, and qualfied the above as "here in the
: USA"

I guessed that ;-)

: Not always, we're the primary users of 2m over here, but we can't
: complain about interference.
:
: : There used to be a 50 watt limit on 420-450 MHz for amateurs due
: : to the possibility of interference to radar.
:
: Don't recall we ever had that over here, but I may be wrong.
:
: It was a US restriction a long time ago.

Ok, thought I'd never heard of it.

: : It used to be that we hams were a corps of operators who could
: : be pressed into service quickly during a war or other crisis.
: :
: : That's still the case. But it doesn't mean that the primary users
: : of a band have to put up with interference from secondary users.
:
: Ah, but who is the primary user..? Here it's the military. Amateurs
: have to put up with anything and everything. On all bands.
:
: Well, here in the USA amateurs are definitely the secondary users of
: 420-450 MHz.
: So while we can complain, we don't have the same "standing", as it
: were.

Well of course we can complain, but nobody will take any notice..!

73 Ivor G6URP

On May 6, 4:44�pm, "Ivor Jones" wrote:
,
typed, for some strange, unexplained reason:
: On May 6, 5:12 am, "Ivor Jones" wrote:

: Not always, we're the primary users of 2m over here,
: but we can't
: complain about interference.

Hold that thought...

: Well, here in the USA amateurs are definitely the secondary
: users of
: 420-450 MHz.

Personally I'd rather have, say, 1 MHz of worldwide-exclusive-amateur
allocation than 2 MHz of shared bandspace. But that's a minor thing,
really.

The big problem here in the USA with regard to amateur bands is that
our FCC tolerates too much RFI from unlicensed emitters. For example,
plasma TVs and other consumer electronics are notorious RF
noisemakers. The whole BPL controversy is a classic example of a bad
engineering idea being pushed for the wrong reasons. There's lots
more, but a lot of it boils down to lack of enforcement resources
coupled with the idea that the RF spectrum doesn't need as much
protection from noise pollution.

Recently, there was a particular brand/model of flat screen TV that
radiated significant RF on the emergency-locator frequency. That
caused quite a bit of excitement....

: So while we can complain, we don't have the
: same "standing", as it
: were.

Well of course we can complain, but nobody will take any notice..!

"You want to complain? Look at these shoes; I've only had 'em three
weeks and the heels are worn right through! If you complain, nothing
happens, you might as well not bother....."

73 de Jim, N2EY