[Scan-DC] Motus wildlife tracking on 166.38 MHz

[Alan Henney]

What's the significance of horizontal-polarized antennas rather than the
typical vertical used by land mobile?

On Wed, May 17, 2023 at 3:55 PM ~Bill <ecps92 at earthlink.net> wrote:

> 166.3800 would be invalid, altho there are some NTIA exceptions for
> Wildlife tracking that allow for freq shifting/Doppler effects
>
> Nearest Voice channel is 166.3750 or +/- 166.3625/166.3875
>
> Also those frequencies are NTIA not FCC
>
>
>
> Bill - N1KUG
> Boston, Mass
> Cruise Ship Frequencies
> http://scanmaritime.com/
>
>
>
> -----Original Message-----
> From: scan-dc-bounces at mailman.qth.net [mailto:
> scan-dc-bounces at mailman.qth.net] On Behalf Of Andrew Clegg
> Sent: Monday, May 15, 2023 12:11 PM
> To: Larry Kumjian
> Cc: scan-dc at mailman.qth.net
> Subject: Re: [Scan-DC] Motus wildlife tracking on 166.38 MHz
>
> Interesting.
>
> I noticed there’s no non-federal allocation for this frequency in the US.
>
> > On May 15, 2023, at 11:21 AM, Larry Kumjian <larry51 at aol.com> wrote:
> >
> > Great antenna pictures; thanks for sharing.
> >
> > I'm wondering if the MOTUS frequency is actually 166.3750. The NTIA
> master file lists that as intermittent nationwide use for the Department of
> the Interior (FX, FL & mob) and also specifically for the Forest Service
> (mob & port).
> >
> > -----Original Message-----
> > From: scan-dc-bounces at mailman.qth.net
> > [mailto:scan-dc-bounces at mailman.qth.net] On Behalf Of Daniel Brown
> > Sent: Monday, May 15, 2023 10:57 AM
> > To: Andrew Clegg
> > Cc: Scan-DC at mailman.qth.net
> > Subject: Re: [Scan-DC] Motus wildlife tracking on 166.38 MHz
> >
> >
> > Check the photo gallery — has some great antenna pictures, but also a
> photo “inside the box” of the hardware they’re using for decoding signals.
> >
> > https://www.northeastmotus.com/photo-gallery
> >
> > And searching on cellular tracking technologies:
> >
> > https://celltracktech.com/collections/digital-radio-products
> >
> >
> >
> >
> >
> >
> >> On May 15, 2023, at 9:34 AM, Andrew Clegg <andrew_w_clegg at hotmail.com>
> wrote:
> >>
> >> I recently came across information about the Motus wildlife tracking
> system. It's a network of receivers (mostly North America but some
> international) that picks up data bursts from tiny transmitters attached to
> migratory animals (such as birds). Motus means movement in Latin. Seems
> pretty cool. I wonder if a receiver set to 166.38 MHz for a while would
> intercept any Motus bursts. They must be pretty weak given the size of some
> of the transmitters.
> >>
> >> https://www.northeastmotus.com/contact
> >>
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> >
> > Daniel Brown
> > daniel.h.brown at gmail.com
> >
> >
> >
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