CGC #1159

by CGC on August 14, 2012

__________________________________________________________________

------------------------------------------------------------------

                      THE CGC COMMUNICATOR

                            CGC #1159

                    Tuesday, August 14, 2012

                             ________

                Robert F. Gonsett, W6VR,  Editor
                

    Copyright 2012, Communications General® Corporation (CGC)

------------------------------------------------------------------
__________________________________________________________________


  KEYT-TV TRANSMITTER FAILURE

  Public Press Release:

  Following loss of air conditioning at its mountaintop
transmission site, the KEYT-TV [Santa Barbara] transmitter
suffered a catastrophic breakdown Friday at about noon.  The
transmitter crash caused the over-the-air signal to vanish.
Viewers using an antenna are not able to receive the KEYT-TV
signal on their digital televisions.  Ventura County cable
viewers have also lost KEYT until repairs are completed.

  Cable and Satellite viewers in Santa Barbara and San
Luis Obispo counties are not affected.  Viewers in most of
the City of Santa Barbara may tune to Channel 17 to watch
KEYT over-the-air.

  KEYT engineers are working closely with equipment
vendors to get the station back on-the-air as soon as possible.
Please direct any questions to Chief Engineer Dave Williams at
(805) 882-3928 or by writing to d.williams (at) keyt.com.

  Dave Williams
  August 13, 2012

******************************************************************

  THE INSIDE STORY ON THE KEYT OUTAGE

  KEYT [Virtual Channel 3, RF Channel 27] uses a Harris
Diamond CD digital transmitter with a single exciter and driver.
The driver failed and diagnostics indicated failure of the pallet
amplifier.  In-house repair failed Friday night, so I sent the
driver chassis to Harris in Quincy, Il.  Harris technical is
working on it now (I sure hope).  I should have a prognosis
for repair this afternoon.

  Does anyone know of the existence of a spare driver that
might work or of a place that has LP digital transmitters ready
for emergency rental?

  My cell number is (805) 331-1839.

  Thanks, Dave Williams,
  August 13, 2012

******************************************************************

  NEXT WWVB TEST STARTS AUGUST 21

  NIST Radio Station WWVB will be conducting a test of a
phase-modulated broadcast format beginning at 1800 UTC (12:00
noon MDT) Tuesday, August 21 and ending at 1800 UTC (12:00 noon
MDT) on Friday, August 24,  2012.  During the test period the
broadcast will be randomly switching between the normal WWVB
broadcast and the new phase-modulated broadcast format.

  Radio-controlled clocks and watches will not be affected
by the test.  Phase-locking 60 kHz timing and frequency standard
receivers may lose lock during the test, but will restore during
the normal broadcast period.  For more information, e-mail WWVB
broadcast manager John Lowe at john.lowe (at) nist.gov or
call 303-497-5453.

  (Letter from John Lowe @ WWVB dated August 13, 2012)


__________________________________________________________________

------------------------------------------------------------------

  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 http://www.bext.com/_CGC/
  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: