|HF Interoperability Exercise
ALE On-The-Air Week
| International ham radio HF Interoperability Exercise (HFIE) also known as ALE On The Air Week (AOTAW) is sponsored by HFLINK and HFN.
Ham operators use the same standards as non-governmental and government organizations worldwide for
interoperable HF communications. Interoperability training during this
EMCOMM readiness exercise covers
standard ALE (Automatic Link Establishment), NALE (Non-Automatic Link
Establishment and SELCALL (HF Selective Calling).
Ham operators are invited to participate at any time during the 10 days
of this free and open informal training. Operators get real-world
experience and become proficient in HF Interoperability communications.
They initiate and respond to ALE calls and soundings, link up with fellow operators
for text or SSB voice QSOs on HF, and share helpful information
about setting up ALE stations.
Join the growing thousands of amateur radio operators worldwide with ALE-capable
stations. Participants discuss, learn, and ask questions using the HFN ALE COMM CENTRE chat room.
The experience gained by operator participation in this readiness exercise
is useful for HF Emergency/Disaster Relief communications.
All operators are reminded to be courteous and operate only on the
recognised International Amateur Radio ALE channels and standards.
AOTAW is not a competition. AOTAW is intended to provide a way for more
operators to gain valuable practical knowledge and expertise in the
operation of an Amateur Radio ALE station.
All operators are encouraged to send ALE soundings (station ID) hourly on the data channels.
CQ - NETCALLS
ALE netcalls are to be used as the general CQ calls for the event.
DATA channels Netcall = HFN
VOICE channels Netcall = HFL
RECOMMENDED ALE QSO PROCEDURE AND MODES
How to call CQ: Transmit a CALL> NETCALL to either the "HFL" net on
the voice channels or "HFN" net on the text/data channels. Wait at
least 1 minute for responses.
2. How to call an individual station: Transmit an INDIVIDUAL CALL to the callsign. It may
be necessary to first add the station's callsign (address) to your ALE
3. Upon linking on a VOICE channel, use USB Voice for the QSO.
4. Upon linking on a DATA channel, send a short AMD message to the
station you are linked with. Receive any AMD message in response.
5. When QSO is completed, transmit the CLEAR LINK signal.
STANDARDS FOR TEXT MESSAGE QSO = AMD
initial ALE link on a DIGITAL channel, use only the universal short
text message for ALE, called an AMD. An AMD message request to the
other operator can optionally ask for other digital text keyboarding,
QSY, or a voice QSO. ALE AMD: is the "universal" ALE text message
system common to all ALE software and hardware, also known as Orderwire
Message, or Automatic Message Display.
Amateur operators who use ALE for government and non-governmental
organisations may be especially interested in participation, for it
provides more chances to work with ALE linking and greater
understanding of the system. It is a chance for operators to explore
the various operational aspects of ALE that may not be utilised
otherwise in a more structured organisation ALE network. The 10 days of
AOTAW enables operators to participate as they can, for any amount of
time in the event, and to experience ALE operation under various
ionospheric propagation conditions.
ON THE AIR SUPPORT
Use the ALE COMM CENTRE chat room for real-time support with other ALE operators.
The HFLINK forum provides information exchange, help with ALE equipment setup, and advice for ALE operators.
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