[Lowfer] 1750 meter frequency for Part 5?
Andy - KU4XR
ku4xr at yahoo.com
Wed Oct 28 20:51:41 EDT 2009
--- On Wed, 10/28/09, Bill Ashlock <ashlockw at hotmail.com> wrote:
> If you choose ~183K, for example, you will probably not
> impact the sites receiving my signals at a distance of
> greater than 200 miles from your base
> Bill
I was thinking that exact same frequency. And I don't think
our interference rules would apply to foreign broadcasters,
but if you plan to transmit when Europe-1 is off air, it
wouldn't be an issue anyway. If my thinking is correct,
those who don't have narrow filters could use LSB, and tune
high, and with IF shift; may not be bothered by de-sense
at all. If you plan to transmit while they're on, maybe
187 KHz to get passed their sideband audio, and still be
3 KHz below the band edge. Even running WOLF you wouldn't
put audio of any kind outside the band would you ??
Andy - KU4XR - EM75xr - Friendsville, TN.
LOWfer Beacon " XR " @ 185.29893 KHz ( QRSS-60 )
Coordinates: N: 35* 43' 54" - W: 84* 3' 16"
http://www.myspace.com/beaconxr
--- On Wed, 10/28/09, Bill Ashlock <ashlockw at hotmail.com> wrote:
> From: Bill Ashlock <ashlockw at hotmail.com>
> Subject: Re: [Lowfer] 1750 meter frequency for Part 5?
> To: lowfer at mailman.qth.net
> Date: Wednesday, October 28, 2009, 8:03 PM
>
> Warren,
>
> The 185.3 watering hole has not exactly dried up. I plan to
> resume 24/7 sending of a 1W (input power) Lowfer signal from
> Ellsworth and Andover on 185.300 +/- 0.5 Hz within a month.
> Both antennas and transmitters are still in place so it's
> just a matter of turning on the power. Like last season this
> is an experiment to determine the comparative signal
> properties from two identical E/W pointing loops over two
> quite different soil types. If you choose ~183K, for
> example, you will probably not impact the sites receiving my
> signals at a distance of greater than 200 miles from your
> base, but let's give it a try. The off-shore sites able to
> see your signal might be interested in looking for my
> signals as well.
>
> Bill
>
> > Date: Wed, 28 Oct 2009 11:09:25 -0400
> > From: wd2xgj at gmail.com
> > To: lowfer at mailman.qth.net
> > Subject: Re: [Lowfer] 1750 meter frequency for Part
> 5?
> >
> > Thanks Bill, Jay,
> >
> > I know
> that the dynamic range of sound cards is limited.
> > I was thinking that it would be good enough to
> rely on the i.f.
> > selectivity of the receiver - e.g. 2.1kHz for an Icom
> R75 with the ssb
> > filter.
> > However, the real problem is that Part 15 stations are
> spread around
> > the band and the 'watering hole' has dried up as the
> 'grabbers' have
> > gone away.
> >
> > I would like to operate between 180-186 somewhere to
> take advantage of
> > Europe 1's quiet period.
> >
> > Plan would be to operate from a remote site, probably
> around 100 watts
> > QRSS or WOLF.
> >
> > --
> > 73 Warren K2ORS
> >
> WD2XGJ
> >
> WD2XSH/23
> >
> WE2XEB/2
> >
> WE2XGR/1
> >
> >
> >
> >
> > On Tue, Oct 27, 2009 at 9:54 PM, Bill Ashlock <ashlockw at hotmail.com>
> wrote:
> > >
> > > Hi Warren,
> > >
> > > Hope you can do some comparative sending between
> 137K and 160 -190K that will indicate the relative
> propagations and antenna efficiencies between these
> frequencies. Think you will find that the same loop will
> perform better at the 137K band in terms of antenna current
> but the effect of ground losses on the ERP may represent a
> variable that is hard to predict.
> > >
> > > As far as causing the least amount of trouble to
> 1W lowfers (like ME :), you would be better off sending at
> the lower end of the band. A freq of 160K to 170K for
> example.
> > >
> > > Bill
> > >
> > >> Date: Tue, 27 Oct 2009 10:16:38 -0400
> > >> From: wd2xgj at gmail.com
> > >> To: lowfer at mailman.qth.net
> > >> Subject: Re: [Lowfer] 1750 meter frequency
> for Part 5?
> > >>
> > >> Hello the list,
> > >>
> > >> Sorry 1st message bounced (probably due to
> HTML format)
> > >>
> > >> Looking for suggestions for a good frequency
> in the 160-189 kHz band
> > >> for a Part 5 beacon/station.
> > >> Want to protect the Part 15 stations but
> would like something in the
> > >> 180-186kHz area so the beacon could be copied
> in Europe when the
> > >> station Europe 1 on 183khz takes it's evening
> break at 0000 UTC.
> > >>
> > >> Grabbers are not a consideration now that
> there are NO active grabbers
> > >> for 1750 meters.
> > >>
> > >> 73 K2ORS
> > >>
> > >>
> > >> On Tue, Oct 27, 2009 at 9:30 AM, Mike-WE0H
> <we0h at yahoo.com>
> wrote:
> > >> > Question?
> > >> >
> > >> > Mike
> > >> > WE0H/8
> > >> >
> > >> >
> > >> >
> > >> >
> > >> >> From: k2ors
> > >>
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