Bruce,
What 300 khz? 145.5-145.7 Mhz., per your earlier email, is 200 khz.
They are in the simplex part of the band. If you are talking about
Echolink simplex nodes or DVAR Hot Spot or DVAP simplex operation, you
can make an argument that they can live in that spectrum. However, we
are talking about duplex repeater operation here, and that must be in
the repeater portion of the band, as per the FCC, and 146.4 - 146.6 /
147.4 - 147.6 Mhz. are in the repeater portion of the band. Those
segments were misappropriated to simplex in the days when there were
more limited repeater frequencies and many FM radios (often commercial
modified) only operated from 146-148 Mhz. and 1 Mhz. split in 146-148
would create better RX/TX isolation for repeaters.
I totally agree that coordinators need to get their act together and
cleanup paper repeaters and even make highest and best use decisions for
pairs (open and occupied is higher use than closed and quiet - and
ARES/RACES teams don't need "drill only" repeaters, they can take full
use of the repeater during a drill or real exercise and leave it open to
the ham community the rest of the time.) -- however, since they are not
moving aggressively to restructure their own plans and to clean up
allocations, it is legal to put repeaters, albeit uncoordinated, in the
repeater portion of the band.
If we would become good spectrum managers, instead of emotional and
sentimental, we would redesign our band plans and start moving existing
systems around to accommodate new modes such as digital voice (at the
same time we should narrow band FM and require CTCSS or similar
frequency sharing technologies). It has been been done before when
several states went from 30 khz. spacing to 20 khz. spacing.
Again, what is the LOGIC of using limited repeater spectrum for simplex,
when there is, as you say mostly unused, simplex spectrum that could be
used by simplex operators.
bruce mallon wrote:
WHY DO WE NEED MORE REPEATERS ?
You have 300 khz waiting for D-Star and echo-link and not one station
there ....
IF there is repeater pairs not being used or just used on paper go use
them ...
Here in Tampa I'll bet 90% of the repeaters have less that 10 users a
week.
D-Star is 1/10 of the 2 meter users now why not go on 300 UNUSED KHZ
.... ?
--- On *Tue, 5/4/10, John Hays /<[email protected]>/* wrote:
From: John Hays <[email protected]>
Subject: Re: [DSTAR_DIGITAL] US D-STAR band planning and
directories (Was: No DSTAR in South Carolina or Georgia?)
To: [email protected]
Date: Tuesday, May 4, 2010, 8:17 PM
What logic says that when you have limited spectrum for repeaters
that you are allocating some to simplex, when there is spectrum
where repeaters are not allowed and is being under used?
On May 4, 2010, at 4:58 PM, bruce mallon wrote:
NO the problem is we don't need More repeater pairs and we don't
need D-Star/echo- link on the 146.400 -146.600 or 147.400 -
147.600 pair already used by analog stations.
--
John D. Hays
Amateur Radio Station K7VE <http://k7ve.org>
PO Box 1223
Edmonds, WA 98020-1223
VOIP/SIP: [email protected] <sip:[email protected]>
Phone: 206-801-0820
801-790-0950
Email: [email protected] <mailto:[email protected]>
