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                      THE CGC COMMUNICATOR
                            CGC #615
                  Wednesday, February 18, 2004
                             ________
               Robert F. Gonsett, W6VR, Publisher
                       <rgonsett@ieee.org>
           Stephen H. Blodgett, W7RNA, Letters Editor
                  mailto: steve@earthsignals.com
    Copyright 2004, Communications General® Corporation (CGC)
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  FCC PROPOSES RULES FOR BROADBAND OVER POWER LINES ("BPL")
  The FCC has proposed changes to its technical rules to
foster broadband (Internet) over power line communications,
while hopefully safeguarding existing radio services against
harmful interference caused by signal leakage.  One of the
Commission's ideas is to prohibit the power line data encoding
equipment from operating on certain critical frequencies such
as public safety channels to protect those channels from
interference.
  The trouble with the Commission's protection scheme is that
the results are uncertain.  While the data encoding equipment
might avoid using certain frequencies, it is not at all clear
that harmonics, intermodulation products and other unsavory
effects (caused by non-linear devices that are ordinarily hung
across power lines) will not regenerate signals in the
"protected" spectrum, thereby contaminating the airwaves.
  http://hraunfoss.fcc.gov/edocs_public/attachmatch/DOC-243879A1.doc
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  FCC RELEASES UPDATE OF OET BULLETIN #69
  The FCC's Office of Engineering and Technology has
released an update of OET Bulletin No. 69 entitled "Longley-
Rice Methodology for Evaluating TV Coverage and Interference."
  http://hraunfoss.fcc.gov/edocs_public/attachmatch/DA-04-319A1.doc
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  FCC SIGNS HISTORIC TOWER SITING AGREEMENT WITH TRIBES 
  AND STREAMLINES TOWER REVIEW
  http://hraunfoss.fcc.gov/edocs_public/attachmatch/DOC-243519A1.doc
  http://hraunfoss.fcc.gov/edocs_public/attachmatch/DOC-242000A1.doc
  http://hraunfoss.fcc.gov/edocs_public/attachmatch/DA-04-270A1.doc
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  FCC ADOPTS RULES FOR 5.9 GHz INTELLIGENT TRANSPORTATION SERVICE
  The FCC has added rules for the "Dedicated Short Range
Communications Services" and for "Mobile Service for Dedicated
Short Range Communications of Intelligent Transportation
Services."
  As one CGC Communicator reader put it, "This breaks ground
in a Part 90 service in that the FCC adopted a standard for
communications protocol [for vehicles and roadside data stations].
[This] may well become the vehicular standard for transportation
messages using chipsets that also work on 5.2 and 5.8 GHz using
OFDM.
  http://hraunfoss.fcc.gov/edocs_public/attachmatch/FCC-03-324A1.doc
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  REVIEW OF QUIET ZONE APPLICATION PROCEDURES
  The FCC has adopted rules for streamlining requirements
for applications affecting Quiet Zones, while protecting these
sensitive areas from harmful interference.
  http://hraunfoss.fcc.gov/edocs_public/attachmatch/FCC-04-23A1.doc
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  OPPORTUNITIES FOR CONSUMERS VIA VOICE OVER THE INTERNET
  This Notice of Proposed Rulemaking recognizes not only that
Internet services should continue to be subject to minimal
regulation, but also that mechanisms to implement important
"social objectives," such as public safety, emergency 911,
law enforcement access, consumer protections and disability
access, may change as communications migrate to Internet-
enabled services.
  http://hraunfoss.fcc.gov/edocs_public/attachmatch/DOC-243868A1.doc
  Of course, Internet phones so far have no way of identifying
their location for 911 emergency dispatchers.  Nor can their
messages be bugged by law enforcement authorities (as long as
they stay clear of the old switched network).  Finally, Internet
phone users pay none of the fees imposed on traditional phone
service to subsidize service to rural areas, the poor and
disabled.
  http://sfgate.com/cgi-bin/article.cgi?f=/c/a/2004/02/09/BUGMD4R8I81.DTL
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  FCC'S MICHAEL MARCUS HONORED AS AN IEEE FELLOW
  Dr. Michael J. Marcus of the FCC was recently conferred
Fellow status by the IEEE.  That title is reserved for members
with an extraordinary record of accomplishment.
  Dr. Marcus joined OET in 1979 and currently serves as
Associate Chief for Technology.  His creative vision significantly
advanced policies that led to the deployment of spread spectrum
and Wi-Fi, and the use of upper millimeter wave technologies.  He
received his bachelor's and doctorate degrees in electrical
engineering from the Massachusetts Institute of Technology.
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                           JOB SHOPPE
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  TECHNICAL SUPPORT ENGINEER NEEDED
  A broadcast equipment manufacturer is looking for someone to
step into a technical support position.  For a detailed job
description and contact information, please visit our jobs page:
  http://earthsignals.com/jobs/
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                      LETTERS TO THE EDITOR
 (100 Words or Less - Weekly Deadline is Wednesday, 6 PM Pacific)
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  MORE INTERFERENCE FROM MEXICO - "XESS" IS ON THE AIR AT 780 KHZ
  XESS, 780 kHz, is on the air and is likely to make life tough
for the adjacent KABC 790 from Los Angeles.  XESS is the "Pacific
Spanish Network" station operating with 20 kW day and 10 kW night
from near Tijuana - see CGC #613.
  An email acquaintance in Modesto, some 420 miles north of San
Diego, reports that during night hours, he hears XESS under the
signal of news/talk station KKOH in Reno.
  XESS seems to be "testing" at various power levels.  I have
an email from Arizona confirming XESS reception, and while I
heard them myself Sunday and yesterday [a week ago], Greg Hardison
emailed from the San Fernando Valley estimating their power at
5,000 watts maximum.
  Christopher Carmichael, mailto: Chris@sdradio.net
  [Emails suggest that the station may have begun testing during
the first week of February.  However, the power level may be kept
artificially low while the 560 kHz case is simmering.  - SB & RG]
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  CURSORY MEASURED RESULTS TO SUPERSEDE THEORETICAL CALCULATIONS?
  It seems there has been some "progress" with regard to the
interference from XEKTT (XEPE), but I wonder about the way it
seems to be going.  The Denver FCC field office contacted our
Denver market CE to make arrangements for some field tests.
They want to make some "interference measurements" on 560 in
Denver with KLZ on and off the air over a two-night period.
The Mexicans are said to be cooperating and have agreed to go
off the air for one night to allow the FCC here and elsewhere
to make measurements.
  I have some questions about all of this.  First, isn't XEKTT's
signal on 560 in violation of the 1986 Mexican Agreement?  If so,
why are we making interference measurements at all?  Second, how
can the FCC make any meaningful interference measurements in just
a couple of nights since skywave fields vary widely from night
to night and season to season.  To get any scientifically valid
values from measurements, many measurements have to be made over
a long period of time. 
  The way this is being handled, it's beginning to look like
XEKTT may be allowed to operate in spite of our agreement with
Mexico, and that our government is going to allow it to happen.
If that's the case, I can't help but wonder what other new
signals we can expect from south of the border.
  Cris Alexander, mailto: crisa@crawfordbroadcasting.com
  Crawford Broadcasting Company
  [Late breaking news:  The FCC has decided to indefinitely
postpone measurements in Colorado, and possibly other locations
as well, after agreeing that cursory measurements would not be
an accurate way to gauge interference.  Since the U.S./Mexican
AM Agreement has been violated by XEKTT, a diplomatic solution
will be sought.  The entire Denver FCC office has been very
helpful in setting matters straight.  (Synopsis of 2/17/04
update by Edward C. Dulaney of Crawford Broadcasting)]
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  THE FCC FILING BY U.S. STATIONS REGARDING XEKTT'S MOVE TO 560
  You can see the FCC filing by KGO and other stations in
response to the interference from XEKTT on 560 KHz.  It's on the
SBE Chapter 40 web site [a very large document] at:
  http://www.lns.com/sbe/KGO_Interference.pdf
  Tim Pozar, mailto: pozar@kumr.lns.com
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  ADDITIONAL INFORMATION ON THE 500 KV ARC (CGC #613)
  The following web site describes technical conditions that
contribute to the phenomena seen in that most inspiring video.
For more, visit:
  http://www.planetchristmas.com/PullThePlug.htm
  (Thanks to John Reiser for the link)
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  USER REPORT: THE ELECTRIC MATTRESS PAD RFI GENERATOR (CGC #613)
  I own one of those heating mattress pads.  The RFI emitted
by the pad's two power supplies affects the entire spectrum up
through TV Channels 2-6 and the FM band.
  KRLD(AM), Dallas, my home station, lays down 95 mV/m just
outside my house.  But even with that rock crushing signal the
heating mattress pad tears up KRLD reception.
  A solution that helped quite a bit was to plug the pad into an
outlet different from the radios on the bedside.  Also, I bought
a timer to interrupt power to the pad during the day and evening
hours so that it stopped polluting my ham band listening, which
was the worst problem with the mattress pad.
  The FCC needs to take enforcement action against the marketers
of consumer items like this, made in countries such as China,
where they don't care much about technicalities such as Part 15.
  Erik Disen, mailto: EDisen@cbs.com
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  A PROACTIVE STEP
  With e-mail spam filters increasing in complexity but not
always doing their jobs properly, Richard Doering suggests that
CGC Communicator readers take the proactive step of telling their
filters to always let the following addresses/domains through:
  ieee.org
  cvx.algx.net
  rgonsett@ieee.org
  rgonsett.connectnet.com
  This action will hopefully ensure continued delivery of the
Communicator.  Use right-click & Options to view these addresses
on your incoming mail (for MS Outlook uses).  Thanks Richard!
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                          MISCELLANEOUS
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  CEDAR FIRE RECAP PROVIDES CHILLING VIEW OF CONFLAGRATION
  Two veteran fire fighters who helped lead the battle against
the Cedar Fire last fall stood before hundreds of their colleagues
at a San Diego convention recently and somberly related details of
the grim and terrifying ordeal they experienced.  Not only had
they found themselves physically cut off from an escape route
during the firestorm, the loss of mountaintop radios left them
cutoff from communicating their situation.  "Robert E. Lee had
better communications at Gettysburg than we did," CDF Assistant
Chief John Hawkins is quoted as saying.
  http://www.signonsandiego.com/news/fires/20040205-9999_1m5cedar.html
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  THE PIRATE WARS OF SOUTH FLORIDA
  According to a February 9th story in the Palm Beach Post,
South Florida is believed to have more pirate radio stations than
any region in the country.  With the availability of relatively
inexpensive FM transmitters, it looks like pirate stations have
found an easy way to get themselves on the air, no doubt presenting
what must be a real enforcement headache for the FCC.
  See the story at: http://tinyurl.com/2qoea
  [Thanks to Bruce Rogow for alerting us to this one. - SB]
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  WOR-TV AND FM HISTORY PAGE BY JIM HAWKINS
  Well done!
  http://hawkins.pair.com/wor-tv-NBergenNJ.html
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  WIRELESS TECHNOLOGY LOCKS THE WHEELS ON SHOPPING CARTS
  With shopping cart theft costing supermarkets thousands
of dollars annually, two California companies have come to the
rescue with wireless systems that detect specially-equipped carts
as they reach the perimeter of a store's parking lot, then lock
the wheels so the carts can roll no farther.  Each cart costs
about $60 to outfit with the locking device, and one chain of
supermarkets reports that the technology has cut losses by
nearly 100%.
  http://www.usatoday.com/tech/news/2004-02-02-cart_x.htm
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  THE FLAMING CURSOR
  Here's a little gem sure to raise the eyebrows of computer
viewers near and far, the perfect afterglow for the 500 kV video
mentioned two Communicators ago:
  http://bartimus.net/Shockwaves/Flamecursor2.swf
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           LOCAL ITEMS FROM THE FCC    (FCC TYPOS TOO)
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  CALL SIGN CHANGES GRANTED
  KPLS(AM), Orange, to KMXE
  KEYT(AM), Santa Barbara, to KZER
  KUNX(AM), Ventura, to KKOM
  KOCL(FM), Carlsbad, to KUSS
  KFTR(TV), Ontario, to KFTR-TV
  K23EQ, Ventura, to KIMG-LP
  http://hraunfoss.fcc.gov/edocs_public/attachmatch/DOC-243514A1.pdf
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  PROPOSED LPTV/TV TRANSLATOR CPs
  Petitions to Deny (if any) are due within a matter of days:
  CH-27, Bakersfield
  CH-45, 55 and 67, Banning
  CH-12 and 43, Caliente
  CH-43, Palm Desert
  CH-20 and 29, Palm Springs
  http://hraunfoss.fcc.gov/edocs_public/attachmatch/DOC-243575A1.doc
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  PROPOSED CP
  KNLA-LP, CH-27, Los Angeles; Venture Technologies Group, LLC
  Petitions to Deny (if any) are due soon.
  http://hraunfoss.fcc.gov/edocs_public/attachmatch/DOC-243740A1.doc
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  AM STATION APPLICATION FOR LICENSE TO COVER ACCEPTED FOR FILING
  BL-20040126AQL  KXMX 2194  NEW INSPIRATION BROADCASTING COMPANY
            P   1190 KHZ                 ANAHEIM, CA
  Lic. to cover
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  The CGC Communicator is published for broadcast engineering
  professionals in so. California by Communications General®
  Corporation (CGC), consulting radio engineers, Fallbrook, CA.
  Short news items are always welcome from our readers,
  and letters may be edited for brevity and clarity.  Letters
  to the Editor (Job Shoppe included) should be sent to
  mailto: steve@earthsignals.com.  For subscription and change
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  CGC Communicator articles may be reproduced in any form
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  Communicator and the originating authors, when named.  Past
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  courtesy of Bext Corporation.  
  The views expressed in our newsletters do not necessarily
  reflect those of Communications General® Corporation, Bext,
  or the newsletter editors.
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