CGC #1130

by CGC on April 2, 2012



                       THE CGC COMMUNICATOR

                             CGC #1130

                      Monday,  April 2, 2012


                 Robert F. Gonsett, W6VR,  Editor

   Copyright 2012, Communications General® Corporation (CGC)



 o  REC Networks reviews the LPFM landscape and notes that
 perhaps eighteen LP-100 channels will become available in Los
 Angeles if second adjacent channel waivers are granted:

 o  Telcordia approved as a TV White Spaces database
 administrator, the second such entity approved by the FCC:

 o  NTIA makes a spectrum swap offer involving the 2 GHz
 BAS band but there are costly complexities making a complete
 swap unlikely:

 o  The FCC, the Department of Education and various vendors
 are intent on transitioning all K-12 schools to digital textbooks
 in five years (which in turn will give bureaucrats the ability
 to amend the curriculum and indeed change written history at the
 push of a button).  Welcome to the "digital textbook ecosystem"
 (FCC's phrase, not ours):



 o  James Collins tagged for operating a 107.3 MHz pirate
 station in Desert Hot Springs:

 o  South Bay Aviation, Inc. at Torrance Airport fined $300
 (reduced from $12,000) for operating on 122.95 MHz without a
 valid permit:

 o  R&R Radio Corp. (KPSI, Palm Springs) -- public file

 o  In Florida, where being a radio pirate is a felony, the
 guilty party in this case will do community service instead
 of jail time:

                      THE MT. WILSON REPORT


 Mt. Wilson had a few electric power hits lately so interested
 parties are going to meet with Southern California Edison (SCE)

 The Cosmic Cafe in the Pavilion is open again on weekends....

 The snakes are coming out so watch your step, and don't forget
 about getting a jump on brush clearance -- important for fire

 That's about it for now from the top of Mt. Wilson.  Stay safe.

 Dennis Doty
 dennisd (at)
 March 31, 2012

                          RANDOM NOTES


 We hope you are enjoying this series on anti-perching
devices that are apparently mandated on southern California
communications sites situated on Forest Service land.  Now we
would like to hear your thoughts before the SCFCC meets with
Forest Service representatives.

 Were it not for the fact that conducting-type anti-perching
devices hold the potential of generating significant long-term
radio frequency interference (RFI) effects, the whole subject
would probably be moot.  Site owners would simply pay X dollars
to have the devices installed and be done with it.  And you can
bet that most site owners would select the least expensive
option to the detriment of all parties involved.

 The communications industry needs to proceed with extreme
caution before adorning their towers and buildings with crowns
of thorns.  These are permanent fixtures that carry real RFI

 Non-conducting spike strips are available; however, an
experienced contractor warns us that these devices do not last
long on sites impacted by snow and ice and have limited life on
other sites.  So, they become a maintenance headache.  Even the
wire-type spike strips inevitably become kicked or mashed to the
point where the wires touch each other and generate RFI.  The
same contractor commented that, "To date I have not seen an
avian fatality because of towers or guy wires."  This is the
same statement that we have heard so often from our readers.

 For archived CGC Communicator stories on "anti-perching"
devices, use the URL below.  You will learn, for example, that
the death of a single condor in the Los Padres forest reportedly
triggered the entire anti-perching campaign.

 Please share your comments and suggestions with us by
replying to the e-mailed version of this newsletter.  All
comments will be forwarded to the SCFCC and may be published
in future Communicator newsletters.  If you would like your
comments "anonymized," start by saying "anonymous comments"
and the editor of this newsletter will personally strip all
identifying information before your material is forwarded
or published.

 Thanks in advance for your input.  By working together,
we may be able to make some progress on this unusual case.



 o  Your station could face a fine if it hasn't turned in
 its report on the results of last fall's national EAS test:

 o  ERI Installations and Indiana OSHA settle tower fatality

 o  Copper thieves steal water pipes and snag a brass water
 meter too:

 o  $30,000 of copper grounding strap stolen from a West
 Palmetto, FL broadcast site:

 o  "The weighted carbon footprint for broadcasting products,"
 one of several talks scheduled for April's NAB Show:



 April's Local Oscillator newsletter from Crawford
Broadcasting is hot off the virtual press.  Cris Alexander
explains the solid progress being made in the KBRT(AM) transmitter
relocation effort despite unexpected setbacks (page 1).  In other
news, Bill Agresta discusses the latest challenges in keeping
KBRT's current Catalina Island transmitter on the air.  With
the random "Island Factor" at work, the unexpected is the
norm (page 8).



 North San Diego County experienced a Magnitude 3.3
earthquake Thursday at 11:09 PM -- a small quake by all standards
but a good reminder to secure equipment in anticipation of "the
big one."

 The X-Y coordinates for Thursday's earthquake are about half
way down South Grade Road on Palomar Mountain.  Click on the Web
address below, then "zoom in" several clicks on the map scale (hit
the plus sign or drag the scale slider upwards) to pinpoint the

 If you put the coordinates listed on the page into your GPS,
you can almost drive to the location -- and if you find a pot of
gold don't forget to share.



 There is a new and fast way to enter text into a mobile
device.  It's called "Gmail Tap" and relies on good old Morse
code.  Only two buttons are needed so you don't even have to
look at the keyboard to enter your message:

 True story or an April Fools hoax?   :)



 Perhaps the best known ranking of graduate schools is
provided by U.S. News & World Report.  MIT has held the top spot
in engineering since 1990 and did it again in the new 2013

 In addition, four MIT engineering departments were ranked
No. 1: chemical, materials, computer and electrical.  Other No. 1
departments at Tech: economics, mathematics, earth sciences,
chemistry, physics, and computer science.

                      LETTERS TO THE EDITOR


 The most recent Tech Letters postings include the following:

 o  Xrey comments on the virtues of wearing hard hats
 at all tower sites where falling ice may be involved:

 o  Mike Worrall notes that Bird-B-Gone makes 100% Lexan
 polycarbonate anti-perching spikes (no metal involved):

 o  Stuart Landau, K6YAZ, explains why protecting the
 GPS bands from adjacent channel interference is difficult:


 Letters to the Editor of the CGC Communicator should be
posted on the Tech Letters Website.  Here is the URL to see
any other 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  Google Maps adds real-time traffic conditions to

 o  About submarine fiber optic cables and the need
 for redundancy and the shortest possible paths in order
 to satisfy high speed market trading:

 o  About opting out of SDG&E's Smart Meter program,
 learning about the existence of the "Center for Electrosmog
 Prevention" and other oddities:

 o  San Diego FLY NAVY bay-front sign becomes an instant

 Shifting Focus to Astronomy, Nature and Rita Hayworth:

 o  Rita Hayworth time-shifted into the disco era:

 o  Stunning slow-motion nature photography:

 o  We occupy a very, very small place in the universe:



 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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_________________________    End   _______________________________

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