[HamWAN PSDR] VOTE: Upgrade failing Baldi - Capitol Peak modem to NetMetal

Nigel Vander Houwen nigel at nigelvh.com
Thu Sep 29 14:46:20 PDT 2016

Since this is a repair/replacement expense we can do this without a full
board vote. I will agree to this cost, and we just need a +1 from one
other board member as per our standing policy.

Ryan, Bart, Cory?


> HamWAN board,
> Last weekend I noticed a big crash in the Baldi - Capitol Peak
> point-to-point signal strength:
> [image: Capitol Peak - Baldi - Wireless Signal Strength]We still have not
> deduced the cause of the crash, but investigating it led us to discover
> that one of the MIMO chains on the Baldi end of the Baldi - Capitol Peak
> link is broken. These two receiver levels should be near identical:
> [image: Capitol Peak - Baldi - Wireless Signal Strength]The modem in
> question is an RB912 installed Sep 3.
> I'd like to propose HamWAN purchase a RB921UAGS-5SHPacD-NM to replace the
> failed RB912. Current price is $129 with free shipping via Amazon Prime.
> The Capitol Peak end already has the RB921UAGS-5SHPacD-NM modem, so this
> upgrade will bring the link up to symmetric power levels and 802.11ac
> speeds.
> I already have replacement jumpers to install between the dish and modem,
> in case that is part of the problem.
> The RB912 will be recovered, repaired or warrantied, and put back into
> service at a future site as a sector modem.
> Tom
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