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A comment on Maine County Deploys Wide-Area Emergency Public Radio Service.

Re:Maine County Deploys Wide-Area Emergency Public Radio Ser... by floatingatoll on Friday December 13, 2019 @02:30PM (#21784574)
The press release indicates that they're using RadioSAFE:

http://www.theradiosource.com/products/radiosafe.htm

> RadioSAFE Broadcast Systems have the capability of staging hundreds of preplanned safety messages that can be selected locally or remotely at a moment’s notice and updated minute by minute. Programming can be performed at the station or remotely via telco or UHF/VHF transceiver or by LAN/WAN if optioned. Redundant levels of message control are provided in the RadioSAFE design.

An antenna upgrade is offered:

http://www.theradiosource.com/products/antenna-hpr0990.htm

> 300 Watts, 470-1800 kHz, 20+ Mile Radius Range

Various warnings are noted about requiring an FCC license beyond certain transmission power thresholds.

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Re:Maine County Deploys Wide-Area Emergency Public Radio Ser... by AWildC182 on Friday December 13, 2019 @05:06PM (#21786027)
That's one hell of an inefficient antenna. At a ~1MHz center frequency it's basically just a dummy load (resistor) that happens to radiate a little. 300 Watts at those frequencies on a long run of speaker wire with a matching transformer/unun at one end could get you 100s of miles during the day and 1000s of miles at night.
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Re:Maine County Deploys Wide-Area Emergency Public Radio Ser... by floatingatoll on Friday December 13, 2019 @10:09PM (#21787545)
Speaker wire generally degrades in sunlight, so that might not be a valid comparison for the "disaster-resistant permanent installation" market.
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