Why would you shift a commercial licence 100 kHz? Surely the only
reason would be to make room for another licence above it?


--- In LPFM_Radio@..., Dave Smith <radiopegasus@...> wrote:
>
>
> .....And to add to all of this... recently THE EDGE was moved from
89 to 88.9 here in Christchurch.
>
> To: LPFM_Radio@...: happydayradio@...: Fri, 12 Sep 2008 12:44:30
+0000Subject: [LPFM] Re: Just one question ...
>
>
>
>
> Yeah, I'm aware of RSM looking to close the adjacent channel
spacingto 400 kHz. That isn't an issue, they've already proved that
it's nota big problem.As for the top end of the band, I doubt they'll
ever allow anything on108.00 - that's a guard frequency - ie, off
limits. Added to which,they get real twitchy the closer you get to 110
(aircraft navigationalinstrumentation).Under the current system, and
with reference to 106.5, I would haveexpected the licence to be on
106.3 - 400 kHz away from 106.7The only thing I can surmise from this
is they plan to shift the lowerend of the upper guardband from 106.7
to 106.9. This may be mirroredby a corresponding shift at the top end
from 107.7 to allow 107.9 tobe used.. but heck, I just don't see THAT
happening.We've got Mai FM 88.6 sitting right on a low power frequency
(with anEIRP of 10 kW), commercially licenced networked stations also
usingLPFM for areas where they can't get a commercial licence, now we
have106.5 in use in CHCH - with things in such disarray as this, I
reallythink the re-hashing of 2011 can't come soon enough.--- In
LPFM_Radio@..., "Richard Phelps" <richard@>wrote:>>
89.0fm is currently the lowest allowable licenced FM frequency in ANY>
market. ( ..current exceptions here: http://tinyurl.com/88-6-88-9 )> >
What RSM is testing, are the ideas of changing the default spacing>
from 800khz to 400khz across the board, and also tabling the idea of>
extending the licensable spectrum downward to make 88.6fm the lowest>
allowable licensed frequency in any market, and no higher than>
106.65fm the highest allowable licensed frequency in any market.
Thats> a mouthful, so lets abbreviate these to LALF for lowest, and
HALF for> highest, for the purposes of this post.> > Co-channel
concerns:> Conclusively, the 400khz raster results are positive -
including> co-channel frequencies in neighbouring markets - like
93.8fm in> Auckland vs 93.8fm Waikato. Co-channel is totally
achievable. Consider> the successful 89.8fm splitoff from Te Aroha a
few years back, to> local 89.8fm Tauranga and 89.8fm Waikato masts. No
problems. NZ's> geography comes in very handy.> > Extending the
spectrum concerns:> Having 88.6fm as the LALF in all markets would
eliminate the anomolies> like 88.6fm in Auckland and those noted at
the top of this post, and> potentially create new licensable
frequencies in every other market at> both ends of the spectrum.> >
Effects on LPFM:> The lower LPFM range would simply be moved down. If
88.6fm goes ahead> as the LALF, and assuming RSM include 400khz
separation applicable to> the gap between the LALF/HALF and LPFM, then
the lower guardband would> range from (possibly) 87.5fm to 88.2fm, and
the upper band from> 107.0fm to (possibly) 108.0fm> > Remember, that's
the point of the Guardband - to exist on the edges of> licensed
spectrum. The guardband would simply move further to the edges.> >
Thats as simple as it gets, and is to the best of my recall. I
welcome> and appreciate any corrections to this.> > cheers all!> >
Richard> > > > > > --- In LPFM_Radio@..., "Ross Levis"
<ross@> wrote:> >> > It is common to have 300khz separation from the
lower LPFM band but> I've not> > seen 200. It's a worrying trend. We
have 89.0Mhz here in Tauranga,> with> > 88.7 the highest LPFM band
frequency. It's not too bad at 300, but> 200 is a> > nightmare.> > > >
> > > > We were assuming the new lower LPFM band will be 87.5 to
88.3,with the> > first licensed frequency at 88.6, but it could end up
at 88.5 in> some areas> > if this case is the norm. That will
effectively make 88.3 useless.> > > > > > > > Ross.> > > > > > > >
From: LPFM_Radio@...>
[mailto:LPFM_Radio@...]> > On Behalf Of wireless.radio>
> Sent: Friday, 12 September 2008 8:51 p.m.> > To:
LPFM_Radio@...> > Subject: Re: [LPFM] Just one question
...> > > > > > > > Ok, but that still doesn't explain how or why RSM
would allocate a> > commercial licence on a frequency that's inside
the back door of a low> > power frequency?> >>
>
>
>
>
>
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