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

[Bart Kus]

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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