[SFDXA] Amateur Radio, Federal Government Engaged in Joint 5 MHz Communication E...
Bill
bmarx at bellsouth.net
Thu Mar 27 17:46:34 EDT 2014
From Chuck W4ROA:
Bill W2CQ
Amateur Radio, Federal Government Engaged in Joint 5 MHz
Communication Exercise
*
*
03/27/2014
Amateur Radio operators and federal government stations are engaged
in a 12-day nationwide test of their capability to communicate with
each other on HF in the event of an emergency or disaster. The High
Frequency Interoperability Exercise 2014 (*HFIE-2014*
<http://hflink.net/hfie2014/>) is running concurrently with the
federal National Exercise Program (*NEP*
<http://www.fema.gov/national-exercise-program>) 2014. Activity is
taking place on two of the five 60 meter channels. The primary
center-frequency channel is 5358.5 kHz, and the secondary
center-frequency channel is 5373.0 kHz. Amateur Radio is secondary
to government users on the band. The joint readiness exercise that
began March 27 will continue through April 7 and include all areas
of the US. Participants will use Automatic Link Establishment (*ALE*
<http://hflink.com/automaticlinkestablishment/>), a standardized
digital selective calling protocol, to establish communication
between stations.
“The HFIE has been a semi-annual exercise for some years,” explained
HFIE-2014 Coordinator Bonnie Crystal, KQ6XA. “Previously, HFIE has
been a ham-only exercise. This year, we scheduled HFIE so it
coincides with the NEP.”
Participation in the interoperability exercise is open to all
ALE-capable federal government radio stations and to all ALE-capable
US Amateur Radio stations. The FCC has granted permission for radio
amateurs to communicate with federal government stations for the
duration of the exercise.
Crystal said ALE signaling “sounds like turkey gobble,” adding that
ALE calls last about 15 seconds. Stations listening “may also hear
the operators then start talking on USB voice,” she said. “The
signals can be up to about 40 seconds long, if there’s texting
riding on it, using a very rapid type of ARQ [automatic repeat
request] handshaking.”
“Once someone links with another station, they have the choice of
using SSB voice or sending/receiving up to about 80 characters of
text,” Crystal said. “Or they can switch to some other mode, such as
CW or PSK or PACTOR.”
ARRL Regulatory Information Manager Dan Henderson, N1ND, said the
exercise offers an excellent opportunity for those amateurs with ALE
capability. “It is a good exercise that highlights one of the key
elements under which US amateurs were granted secondary status on
the 60 meter band,” he said. The amateur community's ability to
participate in an interoperability exercise with governmental
communications is a great way to assess where things stand in this
area — and to explore the next steps to take. We encourage those
amateurs familiar with the ALE protocols and have the station
equipment to participate in a meaningful way to do so.”
Crystal said that in past years some hams who work for federal
government radio systems have participated in HFIE during their
off-hours as Amateur Radio operators. “We got together with some of
them and worked out a way to enable federal stations to do some ALE
interoperability testing on the 5 MHz channels with hams, since they
already are authorized on the exact same channels as hams.” Crystal
said it was just a matter of getting the National Telecommunications
and Information Administration (*NTIA* <http://www.ntia.doc.gov/>)
and the *FCC* <http://www.fcc.gov/> to allow hams and government
stations to communicate. The Special Temporary Authority (STA) was
approved on March 24.
Federal government station HF radios stations have the ALE
capability built into the hardware. Amateur Radio operators
implement ALE protocols using computer software with their ham gear.
“The STA allows for on-the-air testing of interoperability between
the hardware and software-generated ALE implementations,” Crystal said.
The HFIE is a semi-annual ham radio readiness exercise coordinated
by the *HFLINK* <http://hflink.com/> organization and the *Global
ALE High Frequency Network* <http://hflink.net/> It is open to all
ALE-capable ham radio stations. Technical and operational
*guidelines* <http://hflink.net/hfie2014> for ham and federal
government stations are available on the HFIE-2014 website.
The National Exercise Program is a complex emergency preparedness
exercise with activities sponsored by government departments and
agencies, designed to educate and prepare the whole community for
complex, large-scale disasters and emergencies. As part of the
National Preparedness Goal, it enables a collaborative, whole
community approach to national preparedness that engages
individuals, families, communities, the private and nonprofit
sectors, faith-based organizations, and all levels of government.
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