[HamWAN PSDR] Haystack coming up as a 2nd gen site

[Bart Kus]

Just as an update, I have 0 volunteers so far.

--Bart


On 07/29/2014 11:58 AM, Bart Kus wrote:
> Just got word the deploy will be Saturday.
>
> --Bart
>
>
> On 7/28/2014 11:26 PM, Bart Kus wrote:
>> Hello,
>>
>> After some discussion we decided to deploy Haystack as a 2nd 
>> generation site.  It has a huge view of the Puget Sound, it will have 
>> a very fast uplink (via the new Queen Anne facility), so it will do 
>> well with the extra throughput capacity.  What this means is:
>>
>> 1) The sector modems are dual-channel (MIMO, RB911) instead of 
>> single-channel (SISO, Metal).  This, in theory, doubles speed while 
>> still using the same bandwidth.
>> 2) The sector antennas are dual-polarity, and higher gain to (mostly) 
>> compensate for the power loss of going to the lower-powered MIMO modems
>> 3) The sector antennas and dishes feature shielding materials to 
>> minimize interference between the radios
>> 4) All the modems are in metal enclosures to prevent any stray 
>> radiation and interference
>>
>> This 2nd gen architecture is fully compatible with 1st and 2nd gen 
>> clients.  Going to a 2nd gen client may not actually be the speediest 
>> thing for you!  The 1st gen client setup (Metal 5SHPn + Poynting 
>> 30dBi grid) offers better gain + EIRP than a typical RB912 + 2ft dish 
>> 2nd gen client setup.  That added signal power may actually prove to 
>> achieve faster speeds than the added 2nd channel of dual-polarized 
>> MIMO signals when your signal levels are low.  If your signal levels 
>> to the site are high, then switching to a 2nd gen client should be 
>> beneficial.
>>
>> I have footed the $601 bill (shipping included) for the upgrade. I 
>> have also allocated one of my personal MIMO sector antennas (~$150 
>> value) to the cause.  If someone feels like raising a vote to 
>> compensate me fully or partially, that'd be awesome.
>>
>> The reason for the rapid action is I got word our site sponsor would 
>> like to deploy this weekend.  I'm not sure if the hardware will make 
>> it in time at this point, but at least I tried.  If it doesn't make 
>> it, we'll do a 2nd round of deployment later. There's plenty of work 
>> to be done at the site with installing the mounting points and solar 
>> power system.
>>
>> BTW, if you'd like to volunteer your time and energy, the deployment 
>> is sometime this weekend.  The mountain is near Sultan, WA.  I don't 
>> know which day(s) we're going up.  Let me know if you'd like to help.
>>
>> Thanks,
>>
>> --Bart
>>
>>
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>
>
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