[HamWAN PSDR] VOTE: 900MHz service experiment

[Bart Kus]

Turns out the shipping on that 8dBi vertical is $125.

I'm open to suggestions at this point.

--Bart


On 3/6/2015 11:23 AM, Bart Kus wrote:
> 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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