[HamWAN PSDR] VOTE: 900MHz service experiment

[Cory (NQ1E)]

Bart,

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
purchases. ;)

That makes it unanimous, so I guess the voting is complete.

-Cory
NQ1E

On Fri, Mar 6, 2015 at 10:49 AM, Ryan Elliott Turner <ryan.e.t at gmail.com>
wrote:

> Thanks, Bart. I vote yay.
>
> On Fri, Mar 6, 2015 at 12:47 PM, gary.k7ek at yahoo.com <gary.k7ek at yahoo.com>
> wrote:
>
>>  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
>>
>> Hello,
>>
>> 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
>> (http://www.balticnetworks.com/laird-antenna-omni-8dbi-900mhz-n-female-integrated.html)
>> 2x 9HPn modem @ $108.00/ea = $216.00
>> (http://www.balticnetworks.com/mikrotik-metal-9hpn.html)
>> 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.
>>
>> --Bart
>>
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>>
>>
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>
>
> --
>
> Ryan Turner
>
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