Text 28431, 77 rader
Skriven 2012-05-06 03:37:53 av Roy Witt (1:387/22)
  Kommentar till text 28395 av Richard Webb (1:116/901.0)
Ärende: unsullied places, wa
============================
04 May 12 20:30, Richard Webb wrote to Roy Witt:

 RW>> <hmmm>  Remember seeing a ref to it in p97 but don't recall
 RW>> in reference to waht.  That's why I'll have to crack that
 RW>> document again.

 Roy>> 7th Edition, Chapter 4, page 4-6. Describes a line along the 49th
 Roy>> parallel referred to as "Line A" running approximately 50 miles
 Roy>> south of and 50 miles north of (Canadians), then dropping down the
 Roy>> middle of the state of Michigan and around the great lakes to the
 Roy>> east and finally ending at sea east of Maine...

 RW> YEp, that's true.  I'm wondering if my thoughts on the quiet zone
 RW> Dale mentioned weren't to do with emissions elsewhere spectrum-wise.

Couldn't be, since the portion of spectrum shared with radar and
radio-telescope operation is in the 420-450 MHz band.

 RW>> Amateurs may operate in the 421-430MHZ spectrum as long as they do
 RW>> not cause interference to 'land mobile or government radiolocation
 RW>> users'. Additionally, 50-watt PEP apply to amateurs operating within
 RW>> certain circles designated around military installations in the US.
 RW>> I assume, after looking at the Region 2 allocation that this would
 RW>> also apply to the 440-450 spectrum of the FCC's band plan for
 RW>> repeater operation. (I limited the final output of my 449.125 MHZ
 RW>> repeater to 100 watts with a 0 gain omni-directional antenna
 RW>> system.)

 RW> YEah my GE repeater on 444.025 did hafl that, and was, for a brief
 RW> time, at about 40 feet atop a church steeple.  I was working on a
 RW> better site atop the elevator shaft of a 7 story apartment building,
 RW> and then thought i was moving, so I told the rest of the little band
 RW> of fellow travelers that used it to follow up on those negotiations,
 RW> but that site too depended on my remaining in the area as did the
 RW> church. I ended up selling the machine, the duplexers and the rack it
 RW> was in.  Their loss.

B4 leaving California for Texas, I sold the Motorola with everything in
the box for 3x more than I paid for it...due to it's location on a 5600'
mountain top and the ability to radiate more power if the new owner wanted
to go there. Since then, the So CA Repeater frequency allocation entity
has changed up the band-plan to 20 KHz channel spacing, giving more room
to new stations. What was 449.125 is now 449.120 and my friend Monty's
449.350 is now either 449.340 or 449.360...here in Texas, those are input
freqs with the outputs 5 MHz down. And no place to put them on this flat
ground, unless you know a tower owner.

 RW>>> Whatever Pave Paw is/was, it was discussed over 5 years ago in some
 RW>>> ham blogs, but nobody seemed to be worried about it then. They did
 RW>>> mention the east coast 'quiet zone' but that was supposed to be
 RW>>> temporary.

 RW>> YEah I think they may have decided on some other spectrum,
 RW>> but was supposed to impact the upper end of the 440 mhz
 RW>> slice, some sort of military radar iirc.

 RW>> See my message to Paul Quinn and the link provided for PAVE PAWS
 RW>> information.

 RW> YEp, noted that.  Quite interesting, that's kind of waht I
 RW> thought I recalled, but it's been awhile.

Curiosity got the better of me and so I looked it up. In San Diego, you
just put up with the Navy radar installations or went to a different band.
VHF repeaters are a dime a dozen there and so are the 220 and 440
repeaters now.


                R\%/itt


  ... Only those who will risk going too far can possibly
  ... find out how far one can go ~ TS Eliot


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