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                     THE CGC COMMUNICATOR
                           CGC #804
                    Monday, August 6, 2007
                            ________
                Robert F. Gonsett, W6VR, Editor
                     <r.gonsett@ieee.org>
   Copyright 2007, Communications General® Corporation (CGC)
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  FCC: MOBILE DEVICES INTERFERE WITH DTV SIGNALS
  The FCC has issued a failing grade in its test of whether the
use of mobile devices in spectral white spaces would interfere
with DTV signals.  NAB spokesman Dennis Wharton commented on the
results saying, "The portable, unlicensed devices proposed by
high-tech firms can't make the transition from theory to actuality
without compromising interference-free television reception."
(NAB)
  http://www.broadcastingcable.com/article/CA6464540.html
  http://hraunfoss.fcc.gov/edocs_public/attachmatch/DA-07-3457A1.doc
  http://hraunfoss.fcc.gov/edocs_public/attachmatch/DOC-275666A1.pdf
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  FCC ISSUES DIRECT-PICKUP DTV INTERFERENCE TEST RESULTS
  FCC: "The tests show that an OFDM [interfering] source operating
at an effective isotropic radiated power (EIRP) as low as 6.3 dBm
can cause interference to cable DTV reception at a distance of 2
meters and that an EIRP as low as 15.3 dBm can cause interference
at a distance of 10 meters...."  The three DTV receivers tested
were Digital Cable-Ready models that were on the market in 2005.
  http://hraunfoss.fcc.gov/edocs_public/attachmatch/DOC-275668A1.doc
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  FCC ISSUES NPRM ON CONSUMER DTV EDUCATION INITIATIVES
  The FCC has released a Notice of Proposed Rulemaking
(NPRM) which seeks comment on potential DTV consumer education
initiatives.  Among other things, the NPRM seeks comment on
requiring broadcasters, multichannel video program distributors
(MVPDs), retailers and manufacturers to take certain actions
to publicize the February 17, 2009 transition to DTV.
  http://hraunfoss.fcc.gov/edocs_public/attachmatch/DOC-275624A1.doc
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  FCC EXTENDS NEXTEL WAVE-4/STAGE-2 800 MHZ NEGOTIATION PERIOD
  The FCC has announced an extension of the negotiation period
between Sprint Nextel and Border Area NPSPAC licensees in Wave 4,
Stage 2 of the 800 MHz band reconfiguration.  The Border Area is
the area within 110 km (68.4 statute miles) of the U.S./Mexican
border and within 140 km of the U.S./Canada border.  From the
Mexican border, 68.4 statute miles reaches up into parts of
San Clemente and Temecula.
  http://hraunfoss.fcc.gov/edocs_public/attachmatch/DA-07-3468A1.doc
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  FCC FORFEITURE WATCH - SELECTED ITEMS
  o  Extreme Leads, Inc. tentatively fined $1,377,000 for
delivering at least 218 unsolicited FAX advertisements.
  o  Mexico Marketing, LLC, tentatively fined $1,133,000
for delivering at least 209 unsolicited FAX advertisements.
  o  Notice of Violation issued to Foothill DeAnza Community
College District, licensee of radio station WPYM650 in Cupertino,
CA.  Foothill's 72 MHz station was allegedly operating on the
wrong frequency, with excessive power and a spur near 80 MHz
that caused interference to KPIX-TV, San Francisco.
  o  KKNT & KPXQ, Arizona, issued Notice of Violation for
failing to monitor the EAS LP-1.  (At least the company has
a technically savy name: Common Ground Broadcasting.)
  o  Falcon Cablevision, Wrightwood, CA, issued Notice of
Violation for excessive VHF cable leakage.
  http://hraunfoss.fcc.gov/edocs_public/attachmatch/FCC-07-131A1.doc
  http://hraunfoss.fcc.gov/edocs_public/attachmatch/FCC-07-133A1.doc
  http://www.fcc.gov/eb/FieldNotices/2003/DOC-275712A1.html
  http://www.fcc.gov/eb/FieldNotices/2003/DOC-275711A1.html
  http://www.fcc.gov/eb/FieldNotices/2003/DOC-275710A1.html
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                       LETTERS TO THE EDITOR
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  NICE IF DELANO COULD BE REPURPOSED LIKE DIXON
  Re CGC #802: "The International Broadcasting Bureau (IBB)
will stop shortwave broadcasting from Delano, California, at
the end of October...."  Another icon bites the dust.
  Dixon closed a long time ago but IIRC Globe Wireless and
ARINC took over the station for their automated marine and
aviation HF data service.
  Phil Kane, K2ASP
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  MORE COPPER VANISHES
  So I get a call about transmitter problems at KDYA 1190 kHz
in Vallejo (days KDYA, nights KDIA 1640 kHz).  Transmitter looked
okay but saw high reflected power.  Walked out to the tower.
Problem obvious -- the ground system was gone!  We are now
replacing it with barbed wire.
  Bill Ruck, ruck (at) lns.com
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  ABOUT THE 1400 & 1500 KHZ APPLICATIONS
  Did you look at the site for the proposed 1400 in Lemon Grove?
It looks like it is in a residential area.  Also did you see the
application for KIEV on 1500 in LA?  They are proposing multiple
towers in the middle of a little league baseball area.
  Anon.
  [The 1400 kHz application mentioned in CGC #802 was discussed
back in CGC #776.  One of our readers used satellite photos and
determined that the coordinates are in the middle of a congested
city block, but there is a large swimming pool that "(tongue in
cheek) would make a great high conductivity tower base..." -Ed.]
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  SO WHERE ARE THE INEXPENSIVE DTV CONVERTER BOXES?
  Regarding the February 18, 2009 switchover to DTV, where
are the DTV converter boxes the government keeps talking about?
I see units like the Motorola DCH200 mentioned in various forums,
but try to easily find one?  And when you do -- even with the
$40 coupon -- you will still be spending a lot more than the
$10 net the government estimates.
  I tried to find a list of converter boxes and who was making
them.  Googled for several hours and came up with two units --
one by Phillips and the other the elusive Motorola unit.  That's
it.  (I looked at places like Sears.com, Circuit City.com, B&H
Photo Video (which is selling the Key-Digital set-top box for a
cool $1,250), Best Buy (only has a Samsung tuner at $279 that
outputs only HDMI - HDCP or baseband - no RF out)...etc.  Found
none of the low priced units Uncle Sam says are out there.
  So I went out and tried to buy one.  Walked in from the street
to several retailers.  None of the sales people even knew what I
was talking about.  Some did not even know there was digital TV!
  Apparently the consumer industry is not interested in selling
no-profit converters when they can make a lot of big $$$$ selling
new TVs.  So, where are the $50 digital-to-analog boxes the
government says will cost $10 net?  I can't find any! Can you?
  Bill Pasternak, WA6ITF, Amateur Radio Newsline
  newsline (at) arnewsline.org
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  EDUCATE CONSUMERS RE DTV
  Whose decision was it to turn off analog TV?  Who generated
the regulations mandating inclusion of DTV tuners in 15.117?
Who established the switchover deadline?
  It is in the best business interests of the TV receiver
manufacturers and retailers to jump in [and educate consumers
about the 2009 DTV cutover].  Maybe retailers should put huge
banners in their stores and notifications in their ads and
catalogs.  In any event, it seems the Feds, again, are abrogating
their responsibility.  After all, it wasn't the broadcaster's
fiat that will make obsolete hundreds of millions of TVs, VCRs
and camcorders.
  Still steaming!
  Assistant TV CE, Los Angeles
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  OLD MICs WANTED
  Can you help me locate some 639a mics either Western
Electric or Altec?  I'm looked for real and maybe repros.
  Allan Sotzsky,  uponair (at) pacbell.net
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  WIDEBAND AM NOISE FROM LOS ANGELES MTA BUSES
  There seems to be a problem with interference from buses
into AM broadcast radios: white noise that wipes out the entire
band.  Has anyone else had this problem?  At this time it has
only been the MTA in LA and their Red Line buses.
  Howard Fine, Howard (at) pactv.com
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  RADIOSURGERY OVERVIEW
  The technology available for radiation treatments is rapidly
evolving.  You mentioned Tomo, and proton therapy.  There's a new
machine just recently out that uses robotic principles.   Anybody
with a tech interest would find the CyberKnife fascinating.
Check out their site at the URL below.  Pretty cool technology.
  The CyberKnife is being used for prostate cancer treatment by
a local organization and seems to be having good results.  One of
the on-going problems with new therapies is that you really can't
get a solid indication of how they're working without a five to
ten year retrospective period, and the technology's evolving so
quickly that many of the new methods haven't been around that
long.   All the external beam radiation treatments are, though,
essentially the same use of radiation, just aimed more and more
accurately, so the new devices should have results similar to
the old devices with far fewer side effects.
  Jerry Davis
  http://www.accuray.com/
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  HEALTH WATCH
  Paul Wieman, 73, has been in the Intensive Care unit of
Daniel Freeman Hospital in Marina Del Rey since July 12.  He
is reportedly suffering from liver and kidney failure and an
enlarged heart and is not doing well according to his daughter
Sherrie.
  Paul is a well known Mt. Wilson transmitter engineer
and was one of the original builders and owners of the Allcom
communictions facility on Mt. Wilson.  Sherrie would appreciate
your prayers for the whole family.
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  100 WORD LIMIT TO BE RIGIDLY IMPOSED FOR NOW
  We've carried a few fascinating but unusually long letters
over the past week or two, but now it's time to rigidly impose
our 100 word limit (again) on Letters to the Editor.  Letters
longer than 100 words will be regarded as FYI items not
intended for publication.  We generally do not have time to
write stories based on great ideas submitted.
  Thanks  - Ed.
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                          RANDOM NOTES
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  USE A TOYOTA PRIUS AS AN EMERGENCY POWER GENERATOR
  "...I use my Toyota Prius as an emergency generator that can
power my house!  It can deliver 3 kilowatts cleanly, efficiently,
and continuously, and many more kilowatts on peaks as needed for
starting motors in appliances, the well, and the furnace.  As
hybrids become more popular and prevalent, getting emergency
power from your car will be a lot easier and safer than using
the ubiquitous portables."
  Richard Factor, Kinnelon, N.J., commenting in the June 16,
  2007 Science News.
  http://www.sciencenews.org (Subscribers only)
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  SOME LASER PRINTERS MAY POSE HEALTH HAZARD
  Office workers now have reason to think twice before
printing out that report the boss is waiting for.  In a recent
office study, researchers in Australia found that nearly one-third
of laser printers emitted high levels of nanoparticles into the
air, and on average, particle counts during working hours were
five times higher than during non-work hours.  Inhaling these
ultrafine particles may pose a health hazard, experts caution.
  http://pubs.acs.org/cen/news/85/i32/8532news4.html
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  NEWS BRIEFS & CORRECTION
  o  The latest news from KBRT(AM), and its recovery from the
devastating Catalina Island wildfire, is located on page 1 of
the following newsletter:   http://tinyurl.com/357y7f
  o  Radio Since 1996: Fewer Owners, Fewer Listeners,
Higher Rates.  http://www.radioworld.com/pages/s.0100/t.7574.html
  o  Free Amateur Radio repeater locator.  The original idea
was to make it easier to search for repeaters in a given area
for planning a trip. 
  http://k5ehx.net/repeaters/
  o  Correction: The word "prostrate" in Tom Silliman's letter
(CGC #803) should have been "prostate."
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              AM RADIO - LOCAL ITEMS FROM THE FCC
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  AM STATION APPLICATION FOR LICENSE TO COVER GRANTED
  BL-20070405ACN  KCAA  43995  BROADCASTING MANAGEMENT SERVICES...
            P   1050 KHZ               LOMA LINDA, CA
  License to cover.
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              FM RADIO - LOCAL ITEMS FROM THE FCC
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  FM TRANSLATOR APPLICATION FOR MINOR CHANGE TO A LICENSED
  FACILITY GRANTED
  BPFT-20070726AEJ  K238BB  85365  THE ASSOCIATION FOR COMMUNITY
               E   95.5 MHZ               EDUCATION, INC.
                                         PALM SPRINGS, CA
  Minor change in licensed facilities, callsign K240CR.
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  FM BOOSTER APPLICATION FOR LICENSE TO COVER ACCEPTED FOR FILING
  BLFTB-20070725AAF  KSSE-FM1  35114  ENTRAVISION HOLDINGS, LLC
                E    107.1 MHZ              BURBANK, CA
  License to cover.
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