CGC #1138

by CGC on May 12, 2012



                        THE CGC COMMUNICATOR

                              CGC #1138

                       Saturday, May 12, 2012


                  Robert F. Gonsett, W6VR,  Editor

   Copyright 2012, Communications General® Corporation (CGC)



 o  Whether and how the FCC should adopt a flexible second-
 adjacent waiver standard in order to get more low power
 radio stations on the air in urban areas is a huge bone
 of contention between full-service stations and LPFMs:

 o  Should the FCC eliminate the LP10 class of LPFM
 stations?  Should LP100 stations be allowed to run 250 watts
 of power?  These and other questions are presented at:

 o  On Wednesday, May 16, the FCC plans to explain its FM
 translator processing changes:

 o  The Wireless Telecom Bureau is providing guidance
 on the new environmental notification process for antenna
 structure registration.  Expect additional material to be
 released on or about Monday and a live Webcast demo on the
 changes to the filing system on the following Monday:

 o  NAB president Gordon Smith is asking Congress to order
 an inventory of available spectrum space:

                          RANDOM NOTES


 o  BWWG helps State EAS planners:

 o  An 80-percent budget cut is forcing Radio Canada
 International (RCI) to abandon shortwave and satellite radio
 broadcasting, leaving the Web as RCI's only method of



 This article explains Cognitive Radio from a military
perspective where data bursts, white spaces, interoperability,
encryption, exotic waveforms and other things come together
to create ad-hoc communications networks for our soldiers.
Each radio functions as a "node" or "router" with the goal
of having networks of radios established on the fly.

 One interesting point not mentioned in the article is that
our government now views itself as a "waveform library" -- a
repository of algorithms invented by vendors (such as Harris)
to achieve spread spectrum waveforms.  Two such waveforms are
mentioned in the article, the Soldier Radio Waveform and the
Wideband Networking Waveform.  The library is growing and today
holds a total of five waveforms according to inside sources.

                         HAM RADIO NOTES


 The students at Anacapa School in Santa Barbara have
succeeded in sending a balloon to over 111,000 feet.

 According to Amateur Radio Newsline, the instrumentation
included a GPS, atmospheric sensors, high-definition video,
still cameras, a television transmitter and a Geiger counter.
The payload downlinked live data, video and images during its
ascent.  Two payload capsules tethered to the balloon were
returned to Earth via parachutes on May 5th.

 Anacapa Amateur High-Altitude Balloon 2 was designed and
built entirely by students that included Alex Carlson, KJ6UGF
and Genevieve Hatfield, KJ6UGH.  They, along with non-hams
Grayson Baggiolini, Julio Bernal and Christian Eckert, made
up the construction and launch team that was under the
supervision of faculty advisor Levi Maaia, K6LCM.



 Bill Pasternak, WA6ITF, of Amateur Radio Newsline, has
discovered another classic film featuring the late Lenore Jensen,
W6NAZ, running phone patches to Vietnam.  These were done through
the Military Affiliate Radio System ("MARS") which often used
frequencies just outside the regular HF ham bands.  Overseas
telephone calls were difficult to make decades ago and sometimes
impossible depending on location, so ham radio filled the void
-- all with volunteer effort -- and Lenore was at the forefront
of that activity.

 Bill adds, "The color is faded meaning the film was shot on
the old non-fade-proof Kodak 7381/7383 film stocks we all used
for industrial film making back then."  He dates the documentary
to the late 60s and notes that the phone patch was obviously
simulated for filming.  Did you ever hear noise-free audio on
HF DX, or the public always remembering to say "over?"

 These details aside, the film appears to be accurate overall.
It depicts the way things were done about 50 years ago.  (30 minutes)

                      LETTERS TO THE EDITOR


 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  Induction heating to 2192 degrees F:

 o  UK military to have non-lethal sonic weapon at Olympics:

 o  The Copenhagen Philharmonic flash mob -- delightful:



 The CGC Communicator is published for broadcast engineering
 professionals in so. California by Communications General®
 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 General® Corporation, Bext,
 or the newsletter editor.

_________________________    End   _______________________________

Previous post:

Next post: