CGC #1196

by CGC on April 7, 2013



                        THE CGC COMMUNICATOR

                              CGC #1196

                       Sunday,  April 7, 2013


                  Robert F. Gonsett, W6VR,  Editor

    Copyright 2013, Communications General® Corporation (CGC)



  o  Confirming rumors, Julius Genachowski will soon step
  down from his post as Chairman of the FCC:

  o  Commissioner Robert McDowell joins Chairman Genachowski
  in exiting the FCC:

  o  The FCC has issued a First Report & Order, Further Notice
  of Proposed Rule Making and Notice of Inquiry (one document)
  dealing with various aspects of the human exposure to radio-
  frequency emissions standard, including an inquiry into
  possibly rejiggering the standard itself.  Big news:

  o  Media Bureau announces limitations on the filing and
  processing of full power and Class A television station
  modification applications, effective immediately, and reminds
  stations of the Spectrum Act preservation mandate:

  o  NAB tells the FCC that its proposed changes to OET-69
  methods for calculating TV coverage areas and interference
  are "plainly unlawful:"

  o  The FCC will hold a public workshop May 3 to discuss
  its proposed band plan for broadcast and wireless spectrum
  holders following its planned incentive auctions:

  o  Media Bureau announces an April 8 - 17 filing window to
  permit amendment of Auction 83 Noncommercial Educational
  FM translator applications:

  o  The FCC provides clarification on the preclusion
  showings that must be filed to permit the continued pro-
  cessing of certain Auction 83 FM translator applications:

  o  Work is underway to harden EAS:

  o  Internet video closed captioning rules went into effect
  March 30, 2013 for live and near-live programming:

  o  FCC Report & Order focuses on "New 800 MHz Band Plan
  for U.S.-Mexico Sharing Zone:"

  o  FCC to showcase technology that prevents Distracted



  o  FM translator K238AY, Rio Linda, is busted for failure to
  post required written information "on the structure supporting
  the transmitting antenna, so as to be visible to a person
  standing on the ground at the transmitter site:"



  o  The FCC is throwing the book at Fifth Street Funding, Inc.
  for (in part) failure to mark and light their Los Angeles tower
  structure as required.  FCC records indicate that the structure
  is located at 541 S. Spring Street and is said to be a
  "building with tower:"

  o  Apparent unauthorized use of 2390 MHz (for wireless AV)
  at the residence of Julius Magos in Mojave creates interference
  to NASA telemetry:

  o  Impact Radio allegedly acquired three antenna structures
  in Riverside in 2005 but failed to immediately notify the FCC
  of the change in ownership.  A structure painting violation
  was mentioned in one of the cases:

  o  Joseph Loiacono, Lakewood, has been issued an NOV for
  "engaging in extended one-way transmissions which resulted
  in intentional interference to other CB stations:"

  o  Acumen Communication, Rancho Palos Verdes, has been taken
  to task for hogging a shared channel, failure to I.D. and
  apparently not using trunking as required:

  o  Bearcom, Los Angeles, busted for programming un-
  authorized land-mobile transmit frequencies and unauthorized
  use of trunking:

  o  Mobile Relay Associates, Malibu, dinged for hogging two
  land-mobile frequencies and causing interference:

  o  Mobile Relay Associates, Pasadena, cited for hogging a
  shared channel and not using trunking when required:

  o  San Gabriel Transit, Palos Verdes, cited for hogging a
  shared channel, failure to I.D. and use of an unauthorized

                           RANDOM NOTES


  o  As part of its work to develop a next generation
  broadcast standard, the Advanced Television Systems Committee
  (ATSC) has issued a call for proposals for the "physical layer"
  or core transmission system that would be the basis of a new
  nationwide TV standard known as ATSC 3.0.

  o  CTIA's proposal to repurpose broadcast auxiliary spectrum
  for commercial use continues to draw heavy fire:

  o  For the first time at an NAB Show, mobile TV devices will
  be available for sale at the show store located in the Grand
  Lobby of the Las Vegas Convention Center:



  o  Here is some excellent thinking by Ben Dawson and Ron
  Rackley on ways the FCC could improve its AM radio technical

  o  A new AM antenna monitoring system using fiber optic
  cables is described in this article:

  o  Reducing stereo separation (without it being noticeable
  to the listener) is a claimed way to reduce FM multipath:

  o  RF engineering consultant Fred Volken gives us an update
  on his research into the AM-band RFI caused by the Metro Gold
  Line light rail system operating in Pasadena and vicinity.
  Fred can be reached at fred.volken (at)

  o  A company called Digital PowerRadio claims to have
  technology that will improve AM & FM HD Radio reception as
  well as TV reception (both broadcast & cable), but there
  are technical doubts on the HD side:

  o  Seven steps to AM revitalization, a succinct summary:

  o  HD Radio: By the (disputed) numbers:

  o  Nautel will be hosting a DRM & DRM+ reception the NAB
  Show on Tuesday, April 9, from 3-5 PM at the Nautel booth:

  o  As many as 20% of the cars on North American and West
  European roads could be connected to IP networks via apps
  in 2017:

  o  Web-radio is coming to a dashboard near you soon,
  maybe yours:

  o  Ed Rhoads, publisher of Radio Ink, talks about a
  predicted near-future demise of AM & FM radios in cars,
  as amazing and unbelievable as that may seem:

  o  Ford cars are turning into apps on wheels (and, as an
  aside, sometimes producing a lot of RFI in the AM band).
  Here is the inside thinking from Ford:

  o  AM/FM radio continues to be "the king of all media" in
  the car, but expect smartphone connectivity to grow in-vehicle,
  according to Arbitron SVP Marketing Bill Rose:



  CGC #1194 cited an article on HD Radio for the AM broadcast
band elucidating reception problems at night.  We incorrectly
attributed the article to a TV magazine when in fact it appeared
in Radio World and was written by a television editor.  (See
the URL below and check out the vibrant comments.)

  Our statement that "COFDM was never tested on U.S. soil"
was incorrect.  "Adopted amidst great controversy" would have
been more accurate based on trade press reports at the time.

  Also in CGC #1194, we mentioned the recently completed
digital-only tests at WBCN(AM) and said, "Hopefully digital modes
other than HD Radio [such as DRM] were tested but there is no
evidence that this was so."  Thanks to a letter from Geoff
Mendenhall, we now know that only iBiquity's HD Radio system
was tested.

  Geoff:  "The digital only IBOC tests at WBCN were done only
with the iBiquity HD Radio system.  Those broadcasters interested
in the performance of all digital (not hybrid with analog AM)
compared with hybrid AM IBOC, are already broadcasting with the
North American standard HD Radio.  As the number of HD Radio
receivers increases, some AM broadcasters are now thinking about
the coverage and data payload benefits of going all digital on
MW band."

  With all due respect, we note that the number of deployed
HD Radio receivers is relatively small, so there is still time
for a receiver change, should that prove to be in the best
interests of AM broadcasters at large.  We believe the broadcast
industry should invite, welcome and sponsor tests of competing
all-digital AM systems now that the digital-only idea has gained
some momentum.

  Geoff mentioned that HD Radio is the "North American standard,"
so perhaps there is some legal reason why other systems cannot and
will not be tested.  We simply need more information.



  o  POTS (Plain Old Telephone Service) is rapidly dis-
  appearing as people move to various flavors of Voice Over
  Internet protocol, but arcane telco regulations are an
  impediment to a more rapid transition.  Commissioner Ajit Pai:

  o  Free Wi-Fi through high-tech electric meters is available
  to Santa Clara residences:

  o  ...more small theaters will go dark, unable to afford the
  switch from film to digital video.  By 2016, the movie industry
  worldwide will be all digital."  (Kiplinger Letter 3/29/13)

  o  Dog electrocuted by exposed wires inside park utility
  box.  Officials blame vandals who may have been unsuccessful
  in stealing copper wire:

                          HAM RADIO NOTE


  According to the latest Amateur Radio Newsline, Eddie
Bennett, G3ZJO, of Northampton, UK, has used a Raspberry Pi
microcomputer as a 10 mW transmitter and was heard over
2,000 km away in the 7 MHz band.  Here is how to conjure up
a Raspberry Pi transmitter; don't forget to use a low pass
RF filter because the output is a square wave.

                       LETTERS TO THE EDITOR


  The most recent Tech Letters postings include the following:

  o  Roy Trumbull comments on the KCBS(AM) nighttime signal
  in Los Angeles, and discusses the perennial issue of COFDM
  vs. 8VSB as a DTV transmission standard.


  Letters to the Editor of the CGC Communicator should be
posted on the Tech Letters Website.  Here is the URL to see
the most recent postings and to make new postings (all letters
and comments are moderated and are posted after review):

  Please contact the moderator, Steve Blodgett, if you are
having trouble viewing or posting: sblodgett (at)


                            OFF TOPIC



  o  Classic films on the functioning and manufacture of
  electron tubes also called "radio valves:"

  o  Grains of sand magnified greatly, and what a stunning
  view this is:

  o  Thousands using GPS jammers on UK roads pose risks,
  say experts:

  o  Tiny heart repair tools replace surgeon's knife:

  o  Pacific island, bigger than Manhattan, vanishes:

  High Octane Material:

  o  The flying lawn mower (one of various videos on this topic):

  o  At times, life is like an Alpine mono-pipe roller coaster.
  This Austrian downhill coaster is downright terrifying at times
  and there are no brakes.  Hang on:

  o  The modified Volkswagon Bug (jet engine added):

  o  The cell phone turns 40 years of age:



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