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Old 4th June 2005, 02:47 PM   #1
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Default Tube FM -- Armstrong's first bdcst commemorated

the following appeared in this week's ARRL Email blast, for those of you who don't have a 42.8MHz FM receiver the broadcast will be streamed over the web:

==>SPECIAL COMMEMORATIVE BROADCAST TO MARK DEBUT OF FM

Broadcasting history buffs mark your calendars! A special commemorative FM
broadcast Saturday, June 11, at noon EDT will mark the 70th anniversary of
Maj Edwin H. Armstrong's first public demonstration of wideband frequency
modulation (FM).

The broadcast will emanate from Armstrong's 400-foot-tall experimental tower
in Alpine, New Jersey, overlooking the Hudson River. An area landmark that
also served several New York City broadcasters in the wake of the September
11, 2001, terrorist attacks that destroyed the World Trade Center, the
gigantic structure now is owned by CSC Management Inc, headed by Charles
Sackerman Jr. He and Steve Hemphill, WA3ZAE, owner of Solid Electronics
Laboratories--a Pennsylvania broadcast equipment manufacturer--have secured
a Special Temporary Authority (STA) from the FCC to conduct the FM broadcast
on Armstrong's original frequency of 42.8 MHz at a power of 250 W ERP.
They'll use the experimental/STA call sign WA2XMN, reminiscent of
Armstrong's W2XMN call sign.

The program itself will consist of David Ossman's dramatic production of
"Empire of the Air," based on the book by Tom Lewis. They also plan to air
excerpts from a 1941 test broadcast between member stations of the original
New England Yankee Network, featuring actual voice recordings of Armstrong,
Yankee Network Chief Engineer Paul deMars and others. They'll also
rebroadcast the final signoff of Armstrong's pioneer FM station
W2XMN/KE2XCC. The station went silent February 25, 1954, following
Armstrong's death by suicide.

For those lacking an FM radio that can tune to 42.8 MHz, the broadcast will
be simulcast via WFDU(FM) 89.1 MHz, which also will provide a streaming
webcast <http://alpha.fdu.edu/wfdu/wfdufm/index2.html>. The entire program
will be rebroadcast on the Web at 7 PM EDT on June 14 and 16. A recording of
the complete broadcast will be available for download at
<http://www.cscmgt.com>. Additional information about the commemorative
broadcast and the Alpine tower site is available on the CSC Management Web
site <http://www.cscmgt.com/index.html>.
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Old 5th June 2005, 08:46 PM   #2
dhaen is offline dhaen  Europe
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Default Not a trick question, I'm just curious...

.
.

Does anyone know why the US decided to use 75us emphasis while others settled on 50us?
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Old 6th June 2005, 03:54 PM   #3
amperex is offline amperex  United States
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Default RCA robbed that Man

Armstrong was transmitting crystal clear programs in NY area in the late 1920s. RCA was responsible for killing FM as they invested heavily in AM. You can thank RCA for delaying FM quality broadcast for a few decades.

RCA was the most nasty & vicious company ending up robbing Armstrong of millions of dollars.
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Old 6th June 2005, 05:45 PM   #4
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Default Re: RCA robbed that Man

Quote:
Originally posted by amperex
Armstrong was transmitting crystal clear programs in NY area in the late 1920s. RCA was responsible for killing FM as they invested heavily in AM. You can thank RCA for delaying FM quality broadcast for a few decades.

RCA was the most nasty & vicious company ending up robbing Armstrong of millions of dollars.
but Sarnoff was viewed as a visionary -- don't forget that Edison did his best to try and crush Tesla --

oh, how about Watson, the founder of IBM -- when he worked for National Cash Register he would sabotage machines used by mom and pop grocery stores -- breaking a gear or wheel when they weren't looking so as to sell them a service contract
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