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                      THE CGC COMMUNICATOR
                            CGC #522
                    Wednesday,  July 10, 2002
                 Robert F. Gonsett, W6VR, Editor
     Copyright 2002, Communications General Corporation (CGC)
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  A QUIET WEEK AT THE FCC
  This has been an unusually quiet week for FCC engineering
news, so we'll make our own light with a variety of general
interest items.
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  THE MYSTERIOUS WORLD ABOVE 100 GHZ
  Two CGC Communicator readers have asked about the world above
100 GHz, and both wanted to know the frequency of visible light.
  Even though we might think of 100 GHz as being an incredibly
high frequency, visible light is much, much higher.  The primary
"red line" from an ordinary over-the-counter red pointer laser is
448,000 GHz, and the frequency of blue light at the other end
of the visible spectrum about 730,000 GHz.
  Between 100 GHz and the visible spectrum is a vast region,
known as the Tera Hertz Gap, where few solid state devices
produce meaningful power.  A big breakthrough came in May 2002
when a consortium of European scientists announced a 4,400 GHz
solid state laser.  That device could someday provide a mixer
frequency for radio astronomy work, or become an important part
of a new machine to detect skin cancers.
  While the CATV industry uses at least two infrared lasers
for fiber optic feeds, their frequencies are pretty close to
the visible spectrum and not considered to be in the elusive
Tera Hertz Gap.
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                      LOCAL & REGIONAL NEWS
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  GROUND PENETRATING RADAR USED IN SAN DIEGO
  Witten Technologies' radar tomography unit allows city
engineers to survey the urban underground without even breaking
pavement.  Pulled along the surface at one foot/second by a truck,
the device contains nine transmitting antennas and eight receivers.
The antennas beam signals in the 100-400 MHz range downward every
few milliseconds, piercing to a depth of 12 feet.  The system is
employed in New York, Baltimore and San Diego.
  (Wired magazine, December 2001, p44)
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  IBIQUITY Q&A SESSION PLANNED FOR AUGUST 2 - LOS ANGELES
  Los Angeles SBE Chapter 47 is pleased to announce that
Ibiquity's Jeff Detweiler, Broadcast Technology Manager, will
be present at their August 2, 2002 function, from 11:00 AM to
5:00 PM at the Holiday Inn Media Center in Burbank, CA.
Attendees will have ample opportunity for one-on-one discussions
concerning the digital radio rollout process.
  Jeff manages the technical aspects of Ibiquity's Early Adopter
Station Enhancement program which provides free station
assessments for digital upgrades; he also sits on the company's
Advisory Rollout Board.
  For more info, contact Jeff at <detweiler@ibiquity.com>.
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           LETTERS TO THE EDITOR    (NINE LINE LIMIT)
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  RE ALLEGED BIRD KILLS BY TOWERS
  Yesterday, while I was at a communications site, I noticed a
hawk enjoying the height of a tower.  I looked and found no dead
birds at the bottom of the tower/s....
  I have found more dead birds at the bottoms of street lights,
telephone poles and trees (and don't forget large windows) than
I have at the bottoms of towers.  The people that are so concerned
about birds vs. towers need to get a life and leave those of us
who live in the real world alone.
  Burt Weiner
  [The question is, will birds leave us alone?  See:
  http://www.utahbirds.org/BirdStory.htm   -Ed.]
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  ON RED BLANCHARD (W6AG) AND DRAKE-CHENAULT
  [CGC #521] was your best edition yet.  You can't imagine how
many memories both Red Blanchard (I did enjoy my exchange with him
two years ago) and the great Drake-Chenault company brought back!
  All young broadcasters should read about how radio production
was done before digital editing, to appreciate what they've got.
Red was a truly great radio entertainer, and DC's "History of Rock
and Roll" was just the best....
  Russ Jackson
  [Roy Trumbull recalled many of the characters invented by Red,
and a "structural marvel of the western world: a ham tower made
from frozen orange juice tins supplied by (his) audience."  Roy
has also contributed a number of items to Red's website
<http://www.redblanchard.com/>.   - Ed.]
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  ON RF ATTENUATION BY TREES
  Your readers may be interested in checking out a report
prepared by the Department of Defense, Electromagnetic
Compatibility Analysis Center.  It is unclassified and really
gets into modified propagation formulas for predicting loss due
to different kinds of trees.
  The report is: "An initial critical summary of models for
predicting the attenuation of radiowaves by trees."  It was
prepared by Mark A. Weissberger of the IIT Research Institute
under contract to the DoD.  Report TR-81-101, dated July 1982.
  Ric Tell, Richard Tell Associates, Inc., rtell@radhaz.com
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  THANK YOU
  Thanks for your great newsletter.  I look forward to it
every week.
  David Zulli, CPBE
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                          MISCELLANEOUS
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  INFINITY BANS EMPLOYEE LEAKS
  Infinity joins a long line of media companies, including
Disney/ABC and Clear Channel Communications, that forbid employees
to speak to or provide any information to the media, whether on
or off the record, according to published accounts.
  http://www.rwonline.com/dailynews/one.php?id=1711
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  POST-IT NOTES CAUSE PROBLEMS
  Warning: The effect of Post-It Notes on archived material is
devastating.  According to the Scripps Institution of Oceanography
Library (UCSD, La Jolla), the glue on Post-It notes eventually
hardens and leaves a film that becomes acidic.  This results in
eventual discoloration and brittleness of the paper.  In fact,
Post-Its left for more than a month or two on already brittle
paper (old books) cause the paper to tear when the notes are
removed.
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  DOWNLOAD THE INTERNET   ;)
  Just in case terrorists succeed in disrupting the Internet,
you won't be caught short if you have a backup copy of everything
on the Internet.  The following site will help:
  http://www.w3schools.com/downloadwww.htm
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           LOCAL ITEMS FROM THE FCC    (FCC TYPOS TOO)
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  LPTV/TV TRANSLATOR - PROPOSED CONSTRUCTION PERMIT
  The FCC has proposed to grant the following application:
  BMAPTTL-20000818AED, K15EI, CH-15, INDIO, C
  GULF-CALIFORNIA BROADCAST COMPANY
  Petitions to deny, if any, must be filed by July 20.
  http://hraunfoss.fcc.gov/edocs_public/attachmatch/DOC-224010A1.doc
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  FM STATION APPLICATION FOR LICENSE TO COVER GRANTED
  BLH-20020415AAG   KRCK-FM  52808  PLAYA DEL SOL BROADCASTERS
                E   97.7 MHZ                 MECCA, CA
  Lic. to cover
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  AM STATION APPLICATION FOR LICENSE TO COVER ACCEPTED FOR FILING
  BL-20020620ABF   KSUR  43937  MOUNT WILSON FM BROADCASTERS, INC.
             P   1260 KHZ               BEVERLY HILLS, CA
  Lic. to cover
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  FM TRANSLATOR APPLICATION FOR ORIGINAL CONSTRUCTION PERMIT
  PERMIT CANCELLED
  BPFT-19971022TE  DK216EJ 89032  PENSACOLA CHRISTIAN COLLEGE,INC.
              P   91.1 MHZ                RIVERSIDE, CA
  CP NEW STATION, PRIMARY STATION WPCS(FM)
  APPLICATION DISMISSED 1/23/98;
  APPL RESUBMITTED 2/2/98;
  REPLY TO OPPOSITION TO JOINT PET TO DISMISS OR DENY PET FOR
  RECON GRANTED 3-11-98; JOINT PET. FOR RECON FILED 8-9-99
  PERMIT IS CANCELLED AND CALL SIGN IS DELETED 7/1/2002 PER
  APPLICANT'S LETTER REQUEST RECEIVED 6/27/2002.  PET FOR
  RECONSIDERATION IS DISMISSED AS MOOT.
  (NO STAFF ACTION LETTER SENT).
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  TELEVISION APPLICATION FOR MINOR AMENDMENT TO A CONSTRUCTION
  PERMIT AMENDMENT RECEIVED
  BPCT-20011217ABM    KVEA  19783   ESTRELLA LICENSE CORPORATION
                E   CHAN-52                 CORONA, CA
  Engineering Amendment filed 07/03/2002
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  FM AUXILIARY TRANSMITTING ANTENNA APPLICATION FOR AUXILIARY
  PERMIT GRANTED
  BXPH-20020517AAC    KDAR  3077    ATEP RADIO, INC.
                E   98.3 MHZ           OXNARD, CA
  CP for auxiliary purposes
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  The CGC Communicator is published for broadcast professionals
  in so. California by Communications General Corporation (CGC),
  consulting radio engineers, Fallbrook, CA.  Short news items
  without attached files are always welcome from our readers;
  letters may be edited for brevity.  E-mail may be sent to:
  rgonsett@ieee.org  or  telephone (760) 723-2700.
  CGC Communicator articles may be reproduced in any form provided
  they are unaltered and credit is given to Communications General
  Corporation and the originating authors, when named.  Past
  issues may be viewed and searched at http://www.bext.com/_CGC/
  courtesy of Bext Corporation.
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