Amateur radio operators help prepare for Ian

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The ARRL said trained hams work with emergency management and relief organizations

Posted: September 27, 2022

Jim Shipley boards his Beach Hardware store as he prepares for the possible arrival of Hurricane Ian on Tuesday in St Petersburg Beach, Florida. (Photo by Joe Raedle/Getty Images)

The amateur radio community helps federal and local emergency management and relief organizations prepare for Hurricane Ian.

The American Radio Relay League website has a story, published today at noon, detailing ham community efforts in front of Ian.

It includes this statement from the NFL Section Emergency Coordinator, Arc Thames, W4CPD, Florida State Amateur Radio Liaison:

“In response to Hurricane Ian, our ARRL leadership team in Florida is in direct communication with Florida State ESF-2 resources, including the Statewide Interoperability Coordinator, since Friday, September 23. Florida’s Division of Emergency Management has requested the activation of HF amateur radio emergency networks, as well as providing resources to staff the various positions needed throughout the state.

“We are asking all amateur radio operators to cede the use of all frequencies used for Hurricane Ian to allow for the smooth flow of traffic between agencies during this activation. Hurricane Ian is expected to have a major impact in much of the state due to high winds and storm surges which will affect the state for an extended period.

He added: “We remind our operators that we are not deploying ourselves. All deployment requests will come directly from the agencies served. »

[Related: “In Puerto Rico, Radio Stations Cope With Fiona’s Aftermath“]

Higher baud rates

The ARRL also requested and received a 60-day waiver from the FCC’s Wireless Telecommunications Bureau for carriers involved in this higher-than-normal baud rate transmission effort.

He asked for a waiver for licensed amateurs who are directly involved in Amateur radio emergency services and other communication support groups working with emergency management officials. Similar waivers have been granted during major storms and past forest fires.

The organization said trained operators must be able to communicate with similar stations “in the United States, possibly with stations based in the Caribbean that are directly involved in hurricane relief efforts, as well as with federal stations on the five channels of the 5 MHz band involved, with the SHARES network and other interoperability partners on these frequencies.

The FCC states, “The waiver is limited to amateur radio operators in the United States and its territories using publicly documented data protocols compliant with FCC rules, except for the data rate limit waived here. , for those directly involved in Hurricane HF. emergency communications.

Current rules limit the symbol or baud rate – “the rate at which the amplitude, frequency and/or phase of the carrier waveform is changed to convey information” – for amateur radioteletype/data transmissions high frequency at 300 baud for frequencies below 28 MHz (except in the 60 meter band) and 1200 baud in the 10 meter band (28–29.7 MHz).

The digital code used to encode the transmitted signal must be one of the codes specified in section 97.309(a) of the commission rules, but an amateur station transmitting an RTTY or data broadcast using one specified numeric codes may use any technique whose technical characteristics have been publicly documented, such as CLOVER, G-TOR or PACTOR.

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