[HamWAN PSDR] 902 MHz Band Plan? Hardware?

Ryan Elliott Turner ryan.e.t at gmail.com
Sun Nov 23 14:00:45 PST 2014

I believe we may best be served using 2.5 MHz channel width; that way we
can be certain not to interfere, not to receive interference, and
performance will be maximized. I don't think it's reasonable to expect a
900 mhz solution to support as much throughput as a microwave solution due
to bandwidth limitations, anyway.

c0: 904.0 - 906.5 (first 2 mhz are "Digital Communications", last 0.5 mhz
is "Narrow Band FM Simplex grandfathered system - 25 KHz channels")
c1: 915.5 - 918.0 (overlaps .5 mhz into ATV; the higher 2 mhz are "Digital
c2: 910.0 - 912.5 (Wideband Experimental)
c3: 913.5 - 916.0 (Wideband Experimental)

Note that the "digital communications" parts are considered to be Digital
Packet Simplex Channels. I honestly don't know what they mean by that,
though. I think that we should avoid the FM simplex portion and instead
choose ATV to slightly encroach on, but I don't know what sort of userbase
either allocations has. So, c1-3 is the best I can come up with. Thoughts?

As a whole, it looks like the 902 MHz band plans *greatly* vary by region.
For instance, I believe the PSDR group falls under
I dont know what "Channel 1" and "Channel 2" in that band plan represent,
but assuming you want to avoid it, there is little overlap between your
useful frequencies and our useful frequencies.

The difficulty in finding proper frequencies that work throughout the US
suggests that we adopt region-specific solutions.

On Fri, Nov 21, 2014 at 7:32 PM, Ryan Elliott Turner <ryan.e.t at gmail.com>

> On Fri, Nov 21, 2014 at 7:00 PM, KK4IOH <kk4ioh at gmail.com> wrote:
>> You want to stay out of CW and beacons that is sure to pissed some ppl
>> off. CW is your weak signal folks.
>> 900 can get in a duct very easily and unlike VHF where signals drop over
>> long distances they can actually go up. We have a couple weak signal guys
>> here on 900 and even a rover active during all the contests.  I replied to
>> you because my earlier reply to all was moderated as I'm not in the
>> list-serv.
>> We don't have any Repeater's around on the other split any where in the
>> region. I think everything fm is 927/902 I can look to be sure in the sera
>> book.
> Bringing Michael back in the loop. Michael get on the list ;)
> --
> Ryan Turner


Ryan Turner
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