Re: [coldwarcomms] Hardened microwave dish, AT&T Monrovia, MD
- Looking over the site plan for the underground station at Finland, PA
(Finland No. 2), I saw something possibly relevant to the issue you brought
The plan shows what appear to be underground conduits for each of the
two coaxial cables entering the building, plus another conduit (which
could be for power or communications) between the underground building and
the adjacent above-ground microwave station.
I've posted a portion of the plan at:
The red line coming out of the conduit from the NW (upper left) corner of
the building is labeled: Finland "2" - Laurelton "A" Cable. The red line
from NE conduit is labeled: Cherryville - Finland #2 "A" Cable.
The coax conduits are roughly 80 and 120 feet in length, and their distant
ends terminate at rectangular structures labeled "cable headwalls".
It's interesting that the conduits are curved, with their radii noted. I
wonder if this was merely to ensure that the conduits enter the building
walls perpendicular to the wall, or if the curves were intended to give the
conduits some "springiness".
The conduits themselves could been provided merely to avoid the necessity
for cable-installation crews to dig trenches in the immediate vicinity of
the underground building, with the attendant risk of damaging pavement,
landscaping, or the building wall. Or they could have been part of the
blast-protection design (or both).
----- Original Message -----
From: "David Lesher" <wb8foz@...>
Sent: Saturday, July 20, 2002 3:50 PM
Subject: Re: [coldwarcomms] Hardened microwave dish, AT&T Monrovia, MD
> But this raises a question. What level of "give" did the various
> utility egresses have in the undergrounds? And how? It's pointless
> to have a $500K (1971 $) station that survives if the cables get
> crimped at the wall when there's a hit 10 miles away, etc...