CGC #1185

by CGC on January 14, 2013



                       THE CGC COMMUNICATOR

                             CGC #1185

                     Monday, January 14, 2013


                 Robert F. Gonsett, W6VR,  Editor

    Copyright 2013, Communications General® Corporation (CGC)



  While speaking at the 2013 CES, FCC Chairman Julius
Genachowski announced that the Commission will soon kick-off
a government-wide effort to increase speeds and alleviate Wi-Fi
congestion at major hubs, such as airports, convention centers
and large conference gatherings.  In addition, more spectrum
would be provided for Wi-Fi in the home where multiple users
and devices are often on a network simultaneous.

  Mr. Genachowski said that the FCC will take the first
steps next month when it unleashes up to 195 MHz of spectrum in
the 5 GHz band.  This would be the largest block of unlicensed
spectrum to be made available for Wi-Fi expansion since 2003.



  o  FCC's tentative agenda for its Open Meeting on
  January 31, 2013:

  o  A renewed push is being made for 10 watt and even
  1 watt LPFM stations, but these stations cover small areas
  and create interference over wide areas.  New 10 watt Class D
  stations were banned years ago for that very reason.  The
  laws of physics have not changed:



  XO Communications, Concentric and Connectnet will be
dismantling their dial-up Internet access hubs that the CGC
Communicator relies upon as part of our newsletter distri-
bution chain.  If the dismantling occurs sooner rather than
later, the Communicator will vanish from view for all
readers for some time.

  We have asked for additional time beyond the January 21,
2013 disconnect date already announced by XO (see CGC #1184,
fourth story).  Time is needed to update our equipment and
properly transfer the Communicator to a new distribution platform
with a new ISP.  (Connectnet is still unable to deliver e-mails
to Hotmail, MSN and some other domain names as mentioned in
earlier articles, hence the need for a new ISP.)

  We wish Connectnet the best of success as they dismantle
hubs, reshape their business model and hopefully clear the
blockages that have plagued some e-mail deliveries.  We
sincerely appreciate the reliable overall service that
Connectnet has provided us over the years.

  Should the dial-up hubs be taken down before we are ready,
we will let you know on the following Websites:

                           RANDOM NOTES


  o  One interesting feature at the upcoming NAB Show will
  be NHK's demonstration of its Super Hi-Vision TV system (its
  7680 x 4320 video format provides 16 times the number of pixels
  as HDTV).  See the "Futures Park" section of the Show.  (NAB)

  o  Many stories below are intended to complement those in our
  last newsletter by concentrating on Radio World items of
  particular interest published over the past 3-4 weeks or so.
  We are just about caught up on Holiday e-mail.

  o  Here is a synopsis of what's new with HD Radio standards:

  o  All claims by Mission Abstract Data in the re-examination
  of its patents affecting radio automation appear to have been
  rejected by the U.S. Patent & Trademark Office -- but that
  still may not end this case:

  o  Unlikely bedfellows to share spectrum at 3550-3650 MHz,
  possibly combined with 3650-3700 MHz.  A new pecking-order
  is being unleashed for users who share these frequencies, and
  this may be an important model for things to come:

  o  NPR Labs' online propagation mapping system for FM and
  TV is said to be "free and open to everyone:"

  o  Developer plans broadcast spire for 1 WTC in New York,
  but some broadcasters are taking a wait-and-see attitude:

  o  An unofficial history of KMAX Radio by Hank Landsberg:



  Purveyors say the M-EAS system would complement the
recently activated 90-character, cellular-based text emergency
alert system.  M-EAS provides much deeper, multimedia
opportunities with video, graphics, audio and text, and it
does not suffer choke points during high-traffic periods like
cell networks often do.



  Raspberry Pi is something you should seriously consider
purchasing.  Raspberry Pi is a credit-card sized computer that
plugs into your TV and a keyboard.  It's a capable little PC which
can be used for many of the things that your desktop PC does,
like spreadsheets, word-processing and games.  It also plays
high-definition video (e.g. Netflix).  Draws next to no power.

  Model A is $25, Model B is $35.  Originally in very short
supply but now said to be available through Newark and others.

  Google "Raspberry Pi" for much more info.



  For months, dozens of people could not use their keyless
entry systems to unlock or start their cars whenever they parked
near the Hollywood (Florida) Police Department.  However, once
the cars were towed to the dealers, the problem miraculously

  Once a pirate transmitter on 104.7 MHz was silenced, the
problem vanished.  It would not be surprising if the problem
was caused by a harmonic from the bootleg transmitter.

                       LETTERS TO THE EDITOR


  The most recent Tech Letters postings include the following:

  o  RF engineering consultant Fred Volken has devoted quite
  a bit of his person time to investigating RF interference to
  the AM broadcast band caused by the Metro Gold Line Trolley
  (see CGC #1154 & 1155).  His first report is here:

  o  RF engineering consultant Joel Saxberg has found that
  outdoor LED flood lamps are highly unreliable and wonders
  (a) if others have experienced similar failures and (b)
  if there are good long-lasting replacement lamps (LED or

  o  Bob Gonsett, RF engineering consultant and editor of
  this newsletter, reports on the curious temporary use of the
  call sign "WRG3" by a commercial FM broadcast station near
  Washington.  Using WRG3 could be problematic:


  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  Here is one of the best videos we've seen:  A tour of
  the International Space Station by Suni Williams in her final
  days as ISS commander.   Invite the family and grandkids to
  watch this outstanding tour in high resolution mode:

  o Blazing black holes spotted in a spiral beauty:

  o  Roboplow for true armchair snow plowing:

  o  Five piano guys, one piano plus a bit of accompaniment:

  o  Back for a second time: Ray Bethell, a resident of
  Vancouver, B.C., is one of the most famous kite flyers in the
  world.  Here he controls three kites in a beautiful ballet
  set to The Flower Duet:

  o  The button that makes everything okay:



  The CGC Communicator is published for broadcast engineering
  professionals in so. California by Communications General®
  Corporation (CGC), consulting radio engineers, Fallbrook, CA.

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  CGC Communicator articles may be reproduced in any form
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  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 General® Corporation, Bext,
  or the newsletter editor.

_________________________    End   _______________________________

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