Storms at KA1GJU QTH

Announce the status of your server(s) here please.
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KA1GJU
Posts: 291
Joined: Tue Aug 11, 2020 2:16 pm

Storms at KA1GJU QTH

#1

Unread post by KA1GJU »

Super station #1, 2, and 4 are offline for now...

#1 may come back in a while, but I will fire up everything in the AM.

73 Kriss KA1GJU
73 Kriss KA1GJU Home of the KA1GJU Super Station SDRC Servers in NH, USA (FN42mw & FN43na)

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KA1GJU
Posts: 291
Joined: Tue Aug 11, 2020 2:16 pm

Re: Storms at KA1GJU QTH

#2

Unread post by KA1GJU »

The ISP’s router blew up in the middle of the storm, so all servers are down at the KA1GJU QTH, ie Super Station #1, #2, #3, and #4 will be off line until I can obtain a new router. Hopefully the ini file with all the opened ports and forwarding IP’s will load.

73 Kriss KA1GJU
73 Kriss KA1GJU Home of the KA1GJU Super Station SDRC Servers in NH, USA (FN42mw & FN43na)

jdow
Posts: 856
Joined: Mon Aug 10, 2020 8:17 pm

Re: Storms at KA1GJU QTH

#3

Unread post by jdow »

That's what God made screen shots for.
{^_-}

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KA1GJU
Posts: 291
Joined: Tue Aug 11, 2020 2:16 pm

Re: Storms at KA1GJU QTH

#4

Unread post by KA1GJU »

Ok, I borrowed the PCARC router up at the clubhouse (KA1GJU@PCARC SDRC Server), flashed it with the init file and everything is back online at the QTH. Damage so far consists of three Ethernet switches, internal Ethernet adapter in Super Station #1 (on WiFi currently ugh!), two IC7300’s and one IC7610, all with dark screens upon power up. :o
Can’t figure out how the Icom’s blew up, power cords unplugged, USB cables unplugged from laptop, antennas disconnected at patch panel at 50’ of coax to panel.

73 Kriss KA1GJU
73 Kriss KA1GJU Home of the KA1GJU Super Station SDRC Servers in NH, USA (FN42mw & FN43na)

jdow
Posts: 856
Joined: Mon Aug 10, 2020 8:17 pm

Re: Storms at KA1GJU QTH

#5

Unread post by jdow »

The patch panel itself may have picked up a nasty potential. How is it grounded?

If it is an array of RF connectors on a metal panel what hits one antenna gets 'em all. You might use a wooden or plastic panel with the connectors several inches apart. Or use that metal panel as the (sole) ground for the rest of the station. That would likely require breaking a few NEC recommendations and requirements. (National Electric Code) Somewhere I have information from Motorola for how they recommend remote base and repeater buildings be constructed and grounded. I'd ask perplexity.ai about this several different ways until you can find that document. (Compared to a Google search perplexity is nirvana. But, do ask it several different ways and insist it check and recheck its results. If the question is obscure it can miss newer websites or make a weak search.)

{^_^}

===8<---
For deploying radio repeaters on remote mountain tops, there are some key design considerations and specifications:
Mountain Top Repeater Design Specs
Shelter/Enclosure:

Fiberglass or insulated metal shelters designed for outdoor use in extreme environments
Cylindrical or dome shape to shed ice and snow buildup
Anchored securely to the ground using rock bolts or guy wires to withstand high winds
Insulated walls and floors to protect equipment from temperature extremes
Battery shelves secured to prevent movement during high winds
Entry ports for coaxial cables and grounding conductors

Power Systems:

Solar panels and battery banks for off-grid operation
Backup generators or wind turbines may supplement power
Batteries sized for extended operation during adverse weather (e.g. low sun periods)

Grounding and Lightning Protection:

Low resistance grounding system using copper ground rods/rings
Coaxial cable entries use bulkhead lightning arrestors
Antenna masts have low impedance ground paths to dissipate lightning strikes

Environmental Ratings:

Equipment rated for wide temperature ranges (e.g. -30°C to +60°C)
===8<---
1) https://www.tempestns.com/products/moto ... -repeater/
2) https://www.aircomm.com/repeater/mtr3000
3) https://forums.radioreference.com/threa ... is.423146/
4) https://cdn.codancomms.com/general-down ... System.pdf
5) https://www.motorolasolutions.com/en_xl ... aters.html
===8<---
That's after two steps of refining the search. Note the lack of fluff.

Ah, a different search turned up: https://lmrsitestandard.com/wp-content/ ... -01-05.pdf
I believe that is the document I was thinking of. I appended "What are the motorola mountain top building specifications for radios?" to the Perplexity query and hit pay dirt: https://www.motorolasolutions.com/conte ... 030112.pdf

You can probably get some good ideas from that document. An all metal building is a really good idea.

{^_^}

{^_^}

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