[SBE] About WBZ
Henry's dogs and cats
a9xw at cs.com
Sun Aug 7 18:27:40 EDT 2011
NBC NYC originally used a horizontal wire antenna, insulators were
still on the [then] RCA building at 30 Rock when I workled there. So if
nothing else, it would have the directionality of a dipole. Ships at
sea in the 20's relied on distant MW stations for DF navigatrion and
weather informatrion, so I would guess, the famous sign on "good
evening ladies and gentlemen and all the ships at sea" was true, all
the ships at sea that could receive the signals.
From: Tom Bosscher <tom at bosscher.org>
To: sbe member discussion mail list <sbe at sbe.org>
Sent: Sun, Aug 7, 2011 3:35 pm
Subject: [SBE] About WBZ
What this is all about is last week on the net, we were talking
about directional AM's. We all know that WSUN in Florida was the first
station to be licensed by the FCC as a DA. But WBZ, wisely, saw no
reason to have half their RF signal over the ocean. So they have this
simple two tower array that I think was designed in the 20's. Today, it
is indeed licensed as a DA, but my guess is that sometime in the past,
the FCC just simply gave them that designation.
The license does show phase angle and power ratio for the second
tower, and CBS had to get the license modified for a new phase.monitor.
But, do they have monitor points? Again, they were licensed to increase
their main lobe towards the population base. And why would you need
monitor points to the east, were there is no land for 3,000 miles?
I was the one on the net who brought the up the question as to
whether or not WBZ had monitor points. And a second to it, was, why
didn't NBC, and CBS do the same thing in the 20's and 30's to the New
York 50 KW's? I'd rather have 100 kw towards land than 50 KW.
Anyway, tonight at 8pm Eastern, on IRLP reflector 9615 and
tom bosscher K8TB
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