[HamWAN PSDR] VOTE: 900MHz service experiment
cory at nq1e.hm
Fri Mar 6 11:19:09 PST 2015
I also vote YAY on the contingency that you get caught up on the
paperwork. I still don't have the invoices on file from your last two
That makes it unanimous, so I guess the voting is complete.
On Fri, Mar 6, 2015 at 10:49 AM, Ryan Elliott Turner <ryan.e.t at gmail.com>
> Thanks, Bart. I vote yay.
> On Fri, Mar 6, 2015 at 12:47 PM, gary.k7ek at yahoo.com <gary.k7ek at yahoo.com>
>> I'd be interested in experimenting with 900 mhz gear at my Spanaway
>> residence, and possibly at my Graham Hill repeater site. I believe 900 mhz
>> would provide better overall results than 5 Ghz, which proved to be
>> marginal to barely usable during our recent site survey.
>> Best regards,
>> Gary, K7EK
>> Sent from my Verizon Wireless 4G LTE Smartphone
>> ----- Reply message -----
>> From: "Bart Kus" <me at bartk.us>
>> To: "Puget Sound Data Ring" <psdr at hamwan.org>
>> Subject: [HamWAN PSDR] VOTE: 900MHz service experiment
>> Date: Fri, Mar 6, 2015 10:38
>> 5.9GHz is awesome when it works. The speeds are great, and it carries
>> as far as the eye can see with very low ambient noise floor. It does
>> however have problems when it needs to penetrate trees and buildings.
>> To alleviate this, I'd like HamWAN to offer a slower but deeper
>> penetrating 900MHz service. 900MHz is the lowest frequency ham band
>> without bandwidth or modulation rate restrictions. Before we deploy a
>> full cell site, I'd like to get some real-world experience with 900MHz
>> penetration, propagation and ambient noise conditions. Here's the
>> cheapest appropriate hardware we can use for this:
>> 1x Vpol omni antenna @ $79.50/ea = $79.50
>> 2x 9HPn modem @ $108.00/ea = $216.00
>> 1x Shipping @ $UNKNOWN (quote not showing?! Need to call them.) =
>> $40.00 ???
>> Total: $335.50
>> I already have a 900MHz high gain Yagi-Uda in my inventory and can use
>> that to do various field tests. These can be directly compared against
>> 5.9GHz performance since the gear will be deployed to one of our
>> existing 5.9GHz cell sites. The results of such comparisons will give
>> us a good idea of how well 900MHz might do for HamWAN.
>> Disclaimer: These may not be the right modems or antennas for us
>> long-term. A real deployment might use Ubiquiti Rocket M900 with their
>> sector antennas. These Ubiquiti items are far more expensive though,
>> and their software doesn't integrate as easily into our network, so for
>> the purposes of the test I believe the set of hardware I proposed will
>> do well at deploying fast and keeping costs down.
>> NOTE: If both the votes are approved, I will combine shipping from
>> Baltic to save money.
>> PSDR mailing listPSDR at hamwan.orghttp://mail.hamwan.net/mailman/listinfo/psdr
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>> PSDR at hamwan.org
> Ryan Turner
> PSDR mailing list
> PSDR at hamwan.org
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