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

Dean Gibson AE7Q hamwan.stuff at ae7q.com
Thu Jul 31 21:43:03 PDT 2014


I have an Air Force "student" pilot taking an ATP flight check Saturday 
until 3pm, or I'd be there.

If the flight check is scrubbed (30% possibility), I can be with you all 
day Saturday.

I won't know until this time tomorrow evening.

On 2014-07-31 15:46, Bart Kus wrote:
> 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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>>> PSDR at hamwan.org
>>> http://mail.hamwan.org/mailman/listinfo/psdr_hamwan.org
>>
>>
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>
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