[HamWAN PSDR] VOTE: 900MHz service experiment

[Bart Kus]

I just sent you all the relevant invoices.

Thanks, board!  I guess I'm placing all the orders now.

--Bart


On 3/6/2015 11:19 AM, Cory (NQ1E) wrote:
> 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 <mailto: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
>     <mailto:gary.k7ek at yahoo.com> <gary.k7ek at yahoo.com
>     <mailto: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 <mailto:me at bartk.us>>
>         To: "Puget Sound Data Ring" <psdr at hamwan.org
>         <mailto: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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>
>
>
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