[SFDXA] HAM COMES TO THE AID OF SAN DIEGO WHEN ITS FAIL SAFE COMMUNICATIONS SYSTEM FAILS
WILLIAM MARX
bmarx at bellsouth.net
Fri Sep 16 15:44:21 EDT 2011
From Elliot KB2TZ
RESCUE RADIO: HAM COMES TO THE AID OF SAN DIEGO WHEN ITS FAIL SAFE
COMMUNICATIONS SYSTEM FAILS
A ham radio operator uses his knowledge of two-way radio to supplement
communications when power goes out and a failsafe 800 MHz system fails. Bill
Pasternak, WA6ITF, is in the newsroom with the details:
According to news reports, the power mains problem began near Yuma, Arizona.
Affected by the September 8th black-out were parts on Southern California,
South-Western Arizona and Northern Mexico. All of these areas share the same
power grid and in Southern California alone some 8 million customers lost
electric service. And when the lights went out in San Diego, so did parts of the
regions 800 MHz shared emergency communications network.
The problem that arose was that in some North County service areas mobiles in
the field could not hear their dispatchers. In other places the dispatchers
could not communicate with mobile stations. But thanks to some thoughtful
planning by North County Fire Battalion Chief Don Stevens, KF6ATL, a combination
of ham radio know-how and an ageing commercial VHF radio system, not all was
lost:
KF6ATL: “Probably 15 years ago most of the Fire Departments in North San Diego
County were on the VHF system. Subsequent to that, San Diego County, fot
inter-operability reasons built a regional communications that they call the RDS
system. It’s a Motorola system like other Motorola systems throughout the United
States.
“Before we went to the system we are dispatched on at present, we were one of
the last holdouts to go onto the 800 MHz system. And when we did that, one of
the decisions that a couple of us made was not only to keep our (VHF) licenses,
but also to turn our then remote-base transmitters into repeaters. We felt that
we were not going to do what a lot of other cities did and that was to
completely get rid of their VHF infrastructure all together.”
Stevens tells Newsline that while his department is a part of the county wide
800 MHz system, when the switchover took place he decided to keep the San Diego
North County VHF system as a back-up:
KF6ATL: “We had about 6 or 7 frequencies licensed to what was then the Fallbrook
Fire Department which is now the North County Fire Department, and slowly but
surely I took those licenses and turned three of them into what we call “Command
Channels” or “Command Frequencies” and we strategically located them on
mountaintops throughout North San Diego County.
“One of the first repeaters we put up was at a place called Buffalo Bump. Its on
Camp Pendleton. It was followed by a same-licensed repeater up on Palomar
Mountain and then another frequency located on Red Mountain, all within
eye-sight of Fallbrook.
“And then I have one other repeater that I consider a low level repeater located
in downtown Fallbrook.”
That forward planning by KF6ATL paid off then the power failure hit:
KF6ATL: “I was off on the day that the 800 MHz failure occurred with the power
outage. Luckilly, one of my counterparts who works for the city of San Marcos –
Dave Schloss – recognized that there was a failure – and like myself – he
realized that we needed to do something with our 800 system to have redundancy.
So he reacted quickly and called the Dispatch Center and started moving all the
traffic over to my North County Fire VHF repeaters.”
We asked Stevens if his experience as a radio amateur helped in the pre-planning
of the North County VHF radio back up system:
KF6ATL: “Pretty much everything that I’ve done, Iv’e done myself. I’ve taught
myself how to program repeaters. The only thing that I didn’t do was to hang the
antennas.”
In the end, Stevens hopes other communities will do as his did and make certain
that some sort of back up emergency radio system is in place. This, just in case
the unthinkable happens and the primary system fails.
For the Amateur Radio Newsline, I’m Bill Pasternak, WA6ITF, in the studio in Los
Angeles.
If nothing else, this is another incident that proves putting all emergency
communications eggs into a single, supposedly fail-safe system can very easily
fail is not a very good idea. (CGC, ARNewsline™)
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