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                      THE CGC COMMUNICATOR

                            CGC #438

                     Monday,  March 12, 2001

                 Robert F. Gonsett, W6VR, Editor

     Copyright 2001, Communications General Corporation (CGC)

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  LAB SQUEEZES NTSC + HDTV SIGNALS INTO STANDARD TV CHANNEL

  LOS ALAMOS, N.M. -  The Department of Energy's Los Alamos
National Laboratory has announced an encoding algorithm that
squeezes a high-definition television signal into the existing
6 MHz NTSC channel already allocated to TV broadcasters.
Existing analog TVs can continue to receive their NTSC broadcasts
as usual, but HDTVs will be able to decode the embedded digital
information for rendering on progressively scanned 1280 x 720
pixel displays, or so it is claimed.  Of course, the broadcast
industry will need a lot of convincing that this is a robust
and interference-free system, but the announcement is encouraging
and certainly worth reading:

  http://www.eetimes.com/story/OEG20010305S0104 

  (URL forwarded by Bill Wysock, N6UXW)

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  SPECIAL MT. WILSON MEETING CALLED FOR MARCH 19

  A special meeting between USDA Forest Service staff and
Mt. Wilson Broadcast and Communications Operators is scheduled
for Monday, March 19, 2001, from 9 AM to noon on the KCET lot
in the main building auditorium.  Bill Burroughs, Director of
Engineering and Operations, KCET, writes as follows:

  "The main entrance to KCET is on Sunset directly across from
Circuit City.  We're 1/2 block east of Hillhurst, and about 1/2
mile east of Vermont.  The guard will give directions for parking
and meeting location.

  "I'll have the auditorium set up for theater style seating
with a table in front for your panel.  We have a podium with a
mike if needed.  Any recording devices or cameras you need you
should probably plan on providing since most of ours are
generally in use and probably won't be available....

  "KCET has an on-site cafe next to the auditorium for those
who may want breakfast, lunch, snacks and coffee.  If I can be
of further help please call."

  Bill Burroughs, (323) 953-5315, bburroughs@kcet.org 

  [The current Forest Service proceeding is extremely important
from both a technical and a legal perspective.  Operators with
facilities on Mt. Wilson should alert their legal departments
if they have not done so already.   -Ed.]

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  'THE STORY OF MT. WILSON' NOW AVAILABLE ON THE WEB

  "The Story of Mt. Wilson, California," written by Marvin
Collins, is now available on the web.  The following URL will
take you directly to Part 1; look for the hotlinks at the
bottom of each page to access Parts 2 & 3:

  http://www.oldradio.com/archives/stations/LA/mtwilson1.htm 

  Thanks to Gary Stigall and Barry Mishkind for their
considerable work in formatting the story and photos, to Marv
Collins for updating and proofreading the manuscript and to
OldRadio.Com for providing web space for this unique publication.

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  FCC RELAXES MAJOR AM DIRECTIONAL RULES

  The FCC has issued a Report and Order and Further Notice
of Proposed Rulemaking re AM directional antennas which, according
to the Commission, relaxes "our technical rules to the extent
possible while still maintaining the integrity of the service."
This is a long but important document sure to be of interest to
the approximately 1,900 directional AM stations in the U.S.:

http://www.fcc.gov/Daily_Releases/Daily_Business/2001/db0307/fcc01060.doc 

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  CGC's TOWER RIGGER PAGE UPDATED

  CGC has just completed updating its Tower Rigger Page
which lists tower climbers and companies serving the southern
California area.  The new page is available at:

  http://www.bext.com/cgc/ 
  Click on "Tower Rigger Page"

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                           JOB SHOPPE
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  TECHNICAL POSITIONS OPEN AT AZTECA AMERICA

  Azteca America Television Network/KIDN-TV Channel 54
currently has 2 job openings:

  * NT LAN/WAN Administrator  -  Required is experience with
backup systems, Exchange, Citrix servers and Cisco routers.

  * Television Maintenance Engineer  -  UHF transmitter
experience is required.

  Please e-mail your resume and cover letter to
<danbissett@email.com> or you may mail them to:

  Daniel Bissett, Chief Engineer
  KIDN-TV
  17715 Chatwsworth Street #202
  Granada Hills CA 91344

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  OSCAR MEDINA CHANGES JOBS - RANDY MICKLER NOW 'DOE' @ KNSD-TV

  Oscar Medina, formerly with KNSD-TV (NBC 7/39), San Diego,
has gone to work for a company called "Rock Architects" which was
hired by NBC to help with the design and implementation of KNSD's
new studio facilities at 225 Broadway.  Oscar writes, "I'm in
charge of the infrastructure and technical portion of the project;
integration, microwave towers, remote annex, fiber interconnects,
etc.  The techie stuff."  Randy Mickler has been promoted to the
post of Director of Operations & Engineering at KNSD.

  CGC wishes these gentlemen every success in their new positions!

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                     LETTERS TO THE EDITOR
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  THE 1136 KHZ MYSTERY

  A mysterious signal on 1136.4 kHz has been haunting the
AM broadcast band.  Fred Vobbe writes,

  "Most of the time it's a solid tone with 3 bursts per second,
about the speed of an old AP machine.  However, at times this
signal has relayed the Las Vegas station at 1140, which leads many
of us to think that whatever it is resides between Las Vegas and
Los Angeles....  Anyone who lives in the SW can help by listening,
and if possible give a bearing on the signal."  The signal is
apparently not on the air all of the time, and tests indicate
that it is not a spur from 1140/Las Vegas.

  Fred may be reached at: fredv@nrcdxas.org 

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  NOTES FROM KCRW

  1) KCRW has filled the engineering position opening with
John Lewis formerly of KROQ.

  2) For a little more than a year, a signal similar to video
carrier buzz has been emanating from West Hollywood at or around
89.7 MHz.  For a period of a couple of months it stopped, but has
now returned.  It's most noticeable along La Cienega between
Fountain & Hollister (between Sunset Blvd & Santa Monica Blvd)
and can be heard as far as the Santa Monica Freeway & La Cienega.
Listeners to KCRW have complained to me but we've been unable to
identify the source of this interference to date.

  Steve Herbert, steve.herbert@kcrw.org 

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  PIRATE STATION IN THE EL CAJON AREA?

  While I was out driving in Fletcher Hills scanning around
the dial, I came across a station on 104.9 airing programming
from WWFV or The Genesis Communications Network.  Does anyone
know the (location) of this station?

  David Tanny, davidtan@cts.com 

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  REAL PROGRESS ON THE KFMB MASTER FM ANTENNA SYSTEM

  KFMB has hung the combiner hardware in preparation for
next month's scheduled inauguration of its community antenna
on San Diego's Mt. Soledad.  At five tons, the combiner hanging
by Rick Bosscher, John Congdon and John Rigg was no trivial
project.  Up to nine FM stations will be able to use the system.
Take a peek. Click on the photo to see an enlargement.

  http://www.sbe36.org/2001/0304_communityant.html 

  Gary Stigall

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                          MISCELLANEOUS
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  COMMENTS ON RADAR HITS AFFECTING C-BAND SATELLITE RECEIVERS

  Three readers commented on the article entitled "C-Band
Radar Hits - Direction Finding Scheme Proposed" which appeared
in CGC #436.  One writer observed that hit-timing information
from a number of receiving sites must be gathered in order to
obtain a meaningful directional bearing.

  A second writer cautioned that digital satellite receivers
will delay the appearance of a radar hit and therefore throw the
whole 'relative timing scheme' into question.  This person prefers
to find the culprit by using triangulation with a horn antenna but
adds that, "The source of the interference (is) inevitably either
"out at sea" or "in the air"; it's not the same as finding Mrs.
Smith's radiating TV booster amplifier."  The writer, an
experienced broadcast consultant, adds that, "In investigating
literally dozens of radar interference cases, I've never found the
radar to be at fault.  It's always an overload problem at the
affected receiver.  The best fix is to put a bandpass filter in
front of the LNB and be done with it."

  Along the lines that the radar station is not at fault, a
third writer takes us directly to a detailed NTIA report by
Sanders, Hinkle and Ramsey.  The report may be downloaded as a
pdf file at the following URL (scroll down to Report No. 94-313):

  http://www.its.bldrdoc.gov/pub/all_pubs/1990.html 

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  AMATEUR RADIO SPECTRUM PROTECTION ACT OF 2001 INTRODUCED

  The Amateur Radio Spectrum Protection Act of 2001 is now
officially HR 817.  Rep Michael Bilirakis of Florida introduced
the bill on March 1 in the US House of Representatives.  The bill
seeks to amend the Communications Act of 1934 by requiring that
the FCC make no reallocation of primary Amateur and Amateur-
Satellite allocations, diminish any secondary allocations, or
make additional allocations within amateur allocations that would
substantially reduce their utility without also providing
equivalent replacement spectrum.

  http://www.arrl.org/arrlletter/01/0309/ 

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           LOCAL ITEMS FROM THE FCC    (FCC TYPOS TOO)
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  CALL SIGN CHANGES GRANTED

  KACD(AM), Thousand Oaks, to KSSC
  KBCD(FM), Newport Beach, to KSSD
  KVVQ(AM), Hesperia, to KRAK
  KVER-LP, Indio, to KVER-CA

  FCC Report #400

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  FM CHANNEL ACTIONS

  The FCC has amended the FM Table of Allotments for the
  following communities: AVALON, FOUNTAIN VALLEY, ADELANTO,
  RIDGECREST AND RIVERSIDE.  No URL available yet; watch:

  http://www.fcc.gov/Daily_Releases/Daily_Digest/2001/dd010309.html 

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  FM TRANSLATOR APPLICATION FOR LICENSE TO COVER
  ACCEPTED FOR FILING

  BLFT-20010207ABM  K218CP  90737  CALVARY CHAPEL OF TWIN FALLS...
               P   91.5 MHZ              SANTA BARBARA, CA
  Lic. to cover

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  FM STATION APPLICATION FOR MINOR MODIFICATION
  TO A CONSTRUCTION PERMIT GRANTED

  BMPH-20001213AFM   KRCK-FM  52808  PLAYA DEL SOL BROADCASTERS
               P    97.7 MHZ                MECCA, CA

  Mod of CP to chg

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  FM STATION APPLICATION FOR MINOR MODIFICATION
  TO A LICENSED FACILITY GRANTED

  BPED-19981211IB    KLRD   60144   EDUCATIONAL MEDIA FOUNDATION
              P    90.1 MHZ                 YUCAIPA, CA

  Application for minor changes.
  Amended 8/7/2000 for 0.56 kW ERP directional, 1110 meters HAAT,
  34 03 18 NL, 116 53 35 WL
  Informal objection filed 2/18/1999 by Good News Radio (KSGN)
  Informal objection denied and application granted 2/26/2001

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  FM AUXILIARY TRANSMITTING ANTENNA APPLICATION
  FOR MOD OF LICENSE FOR AN AUXILIARY FACILITY GRANTED

  BXMLH-19991013ACC   KYSR  36019   AMFM RADIO LICENSES, L.L.C.
                P   98.7 MHZ             LOS ANGELES, CA

  Modification of license BLH-6311 for auxiliary facilities.
  Granted 2/22/2001

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  FM STATION APPLICATION FOR LICENSE TO COVER GRANTED

  BLH-20010102AAI     KVYY   33567   BIG CITY RADIO-LA, L.L.C.
              E    107.1 MHZ               VENTURA, CA

  Lic. to cover

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  TELEVISION APPLICATION FOR MINOR MODIFICATION
  TO A LICENSED FACILITY ACCEPTED FOR FILING

  BPCT-20010220AAE   KHIZ  63865   SUNBELT TELEVISION, INC.
               E    CHAN-64              BARSTOW, CA

  Minor change in licensed facilities, callsign KHIZ.

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  FM STATION APPLICATION FOR LICENSE TO COVER GRANTED

  BLH-20001201AAY    KJLH   64639    TAXI PRODUCTIONS, INC.
              E    102.3 MHZ              COMPTON, CA

  Lic. to cover

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