CGC #1194

by CGC on March 18, 2013



                      THE CGC COMMUNICATOR

                            CGC #1194

                     Monday, March 18, 2013


                Robert F. Gonsett, W6VR, Editor

   Copyright 2013, Communications GeneralR Corporation (CGC)



  o  White Space channels are being unleashed nationwide:

  o  The wireless industry wants more spectrum yet
  and has requested that it come from broadcast auxiliary
  services (BAS) holdings:

  o  On March 20, the FCC will hold an Open Meeting to
  hear a presentation on American Indians entering radio
  broadcasting, and the whole Commission will consider
  improvements to our nation's 911 system:

  o  April 19 is the deadline for FM translator Auction 83
  preclusion showings:

  o  FM translator roulette begins:



  NAB to FCC:  Your TV spectrum incentive auction is "unnecessarily complex,
appears to ignore important engineering considerations and overlooks more
basic and straightforward solutions."  Right on!



  The FCC's Enforcement Bureau has done a terrific job of reorganizing its
Field Actions list into year-by-year pages.
No longer do you have to lease a super-computer to download years of
moss-laden data to see the most recent enforcement actions.

  Congratulations to FCC staff on getting this done.



  o  K238AK (rebroadcasting KRCK-FM, Mecca) was fined $4,000
  for spurious emissions in the aviation band.  Their appeal
  was just denied, so the $4,000 fine stands:

  o  No land-mobile license and spurious emissions on
  151.865 MHz in Julian result in an NAL and a proposed fine
  of $12,000:

  o  NOV issued involving KKYT, Ridgecrest.  EAS equipment
  was not installed and not operational, there was no public
  inspection file and the transmitting antenna was installed
  lower than authorized.  This doesn't look good.

  o  NOV issued involving KPRO(AM), Riverside. "At the time of
  inspection, KPRO did not have records to indicate their [EAS]
  equipment was receiving tests formatted with the Common Alerting
  Protocol (CAP).  Additionally, there were no records to
  determine the cause of failure to receive the CAP tests."

  o  NOUO issued to Ministerios Llamada Final, Bakersfield,
  for operating a pirate station on 107.7 MHz (first adjacent
  channel to KUZZ-FM).  The field strength produced was 5,730
  times the legal limit meaning that said pirate's transmitter,
  in a first-order analysis, was running about 33,000,000 times
  too much power to be unlicensed (5,730 squared).

  o  NOV issued involving KBIG-FM, Los Angeles.  FCC "monitoring
  revealed that the transmission failed to identify the station
  properly by announcing the station's call letters immediately
  followed by its community of license.  The station simply
  identified itself as 104.3 FM...."

  o  NOV issued involving a Cook Telecom 931 MHz pager transmitter
  atop the Sonoma Valley Hospital.  The second harmonic was not
  only excessive, it was degrading AT&T's cellular service at
  1.86 GHz.  Additionally, the "paging service radio station
  failed to identify its assigned call sign."



  The FCC has issued a Notice of Violation ("NOV") to KZPO,
103.3 MHz, Lindsay, CA for a variety of alleged rule violations:
(a) STL operation on 949 MHz without a permit, (b) failure to monitor two
EAS sources, (c) failure to log why KZPO did not receive numerous RWTs, (d)
numerous missing Community Issues and Programs Lists from the Public File
and (e) no Chief Operator designated in writing.  KZPO covers Visalia,
Tulare and vicinity.

                          RANDOM NOTES


  Concerning AM HD Radio, the HD sidebands junk-up the band as many of you
know, and nighttime operation is really plagued when skywave comes alive
(which it does every night).  Today's AM HD Radio is "highly disappointing
radio" because it is a far cry from the interference-free system we were
promised decades ago.

  In the following article, AM HD problems are clearly elucidated.  It is
rare to see such a frank discussion in a sponsor-driven journal (perhaps
that's why the comments appeared in a TV magazine).  Skip down to the
Conclusions section if you are in a hurry, and don't forget to shut off your
AM HD exciter before leaving the building.  Be 'green' and help clean up the
AM band.



  Initial field tests have been completed by operating WBCN, 1660 kHz,
Charlotte, N.C. in the 'all digital' mode.
Judging from the group of engineers in attendance, the testing was done for
one and only one digital system -- HD Radio.
The results have yet to be announced but a paper is planned for the NAB Show
in April.

  The WBCN test was apparently a simple test in the quiet part of the AM
band (1610-1700 kHz) and the station was non- directional (eliminating a
number of problems associated with directional arrays).  Obviously there
wasn't any co- channel interference from other all-digital HD stations
because there are no other all-digital AM HDs in the U.S.

  Hopefully digital modes other than HD Radio were tested but there is no
evidence that this was so.  Modes such as DRM were not even mentioned in the
article that is cited below.  DRM has had fabulous success and widespread
adoption in other parts of the world and is a candidate to become the U.S.
all-digital standard -- if tested.

  If DRM wasn't tested at WBCN, everyone will wonder why.
That would remind us of how the U.S. killed COFDM as the HDTV modulation
standard by making sure COFDM was never tested on U.S. soil.  Hopefully
future tests will be fair and all- inclusive.



  o Geoff Mendenhall, W8GNM, has left Harris as VP of
  transmission research and technology and has opened an RF
  systems engineering consultancy with Harris as his first client.
  Geoff is a very bright guy and we wish him the utmost success:

  o  Harvard's summary report on Teens & Technology is
  fascinating and easy to read:

  o  The number of people reached by HD Radio remains small:

  o  An historic KHJ(AM) radio tower is demolished in this
  video while the other tower is prepared for demo.  Caution:
  This URL is very troublesome at times:

  o  All about KRKD, 1150 kHz, Los Angeles:

  o  Remembering the Gates Radio Company:



  KBRT, 740 kHz, Costa Mesa, is now on the air full time from its new Oak
Flat transmitter site in the Santa Ana Mountains; "fulltime" means with
night service which is something new for the station.  Although night
coverage is limited, it is certainly better than no night coverage at all.

  In response to an inquiry from CGC, Cris Alexander, KBRT's Director of
Engineering, adds: "We are indeed running KBRT at night with 205 watts input
power.  Amazingly we provide interference-free night coverage to all of
Corona and a good bit of Irvine and Anaheim.  Of course, this is bound to be
highly variable as skywave propagation of KCBS is up and down, but so far,
so good, much better than I expected!"



  Moving KBRT(AM)'s transmitter from Catalina Island to Oak Flat on the
mainland was a monumental undertaking.

  Now, Cris Alexander has added two new offerings on the station's photo
gallery page.  First is a written account of the move; second is a radio
interview where he and Don Crawford (owner of KBRT) discuss the project from
beginning to end (the audio file has been broken into 12 minute segments
with breaks for ease of listening).



  The monopoly powers of two of Mexico's richest businessmen are coming
under fire with a broad set of new laws that aim to open up the
telecommunications and television businesses (e.g.
Grupo Televisa and TV Azteca) to competition.  Wall Street Journal
subscription required for the first URL:



  CGC #1190 carried the following story:

  o  Inept spoken advertisements [in English] have been
  coming from south of the U.S./Mexican border, a strange
  and bizarre situation that tarnishes the image of Mexico:

  The following Spanish language document sets out to fix the problem.  The
first URL is the original Spanish version of the document, the second is
Google's automated English translation of same:



  The CGC Communicator will continue to be published on an intermittent
basis as we work toward possibly transitioning the newsletter to a new
distribution platform.  We appreciate the many kind letters received.

  The transition has not been easy so far and there is no assurance that the
Communicator will continue or continue in its present form.

                      LETTERS TO THE EDITOR


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  o  A tribute to Newcomb Weisenberger, a former long-time
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                           OFF TOPIC



  o  Why Chinese products cost less.  You only need watch
  the first two minutes to get the drift:

  o  How the Internet works in an easy-to-understand way:

  o  The next generation aerial surveillance camera:

  o  Audi-Piloted driving, the zombie car in action:

  o  Examining our roots - America in color, 1939-1943:

  Just for Fun:

  o  Alberta, Canada promotional video, nicely done:

  o  The 1949 Mercury Dwarf Car, amazing workmanship:

  o  Why paper will never die.  Understanding French is
  not necessary:
****************************************************************** ONE VERY SIGNIFICANT BIT OF DATA How cool is this. In our age of broadband wireless and optical fiber, the Vatican only needed to transmit one bit of information to the faithful who were waiting outside: Was a new Pope elected or not? The Catholic church used -- as tradition would have it -- a smoke signal to convey that solitary bit of data. And not any ordinary smoke was used. To eliminate past complaints of ambiguous grey colored puffs, 21st Century chemistry was applied. This year the white smoke was really white and the black was really black. __________________________________________________________________ ------------------------------------------------------------------ The CGC Communicator is published for broadcast engineering professionals in so. California by Communications GeneralR Corporation (CGC), consulting radio engineers, Fallbrook, CA. For subscriptions to the CGC Communicator, or to cancel subscriptions, or to change your e-dress already on file, send mail to . Manually edit the address so it reads, "cgc@cgc333...." CGC Communicator articles may be reproduced in any form by non-commercial publications provided the articles are unaltered and credit is given to the CGC Communicator. Past issues may be viewed and searched at courtesy of Bext Corporation. Letters to the Editor are not being accepted by the CGC Communicator at this time but may be sent to the companion publication Tech Letters. See CGC #999 (fourth story) for instructions on how to access Tech Letters. To go directly to CGC #999: . Typographical errors originating in FCC material are reproduced in our newsletter without speculative corrections. The views expressed in our newsletters do not necessarily reflect those of Communications GeneralR Corporation, Bext, or the newsletter editor. ------------------------------------------------------------------ _________________________ End _________________________________

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