LAPEER, Mich. ? For the second time in less than a week Lapeer?s tornado sirens have gone off without a tornado anywhere in the county and there was no reason for alarm.
http://thecountypress.mihomepaper.com/n ... again.html
Don't know. Maybe it has to do with the Canadian telecom switch from analog to digital this past year?Oldiesmann wrote:How does the paging system manage to set off the sirens?
I'm also wondering why they need to get permission from officials in Canada to switch over to a digital paging system - Lapeer is a good 53 miles from Canada.
Lapeer County is within the "A" Line, and has to coordinate all radio licensing with Canada. This treaty was implemented years ago, and is designed to prevent harmful interference on radio frequencies on either side of the border.kb4mdz wrote:I'll do some more research for details, but there are certain restrictions for setting up radio frequencies within a certain distance of the Canadian border.
I believe they use the county fire paging frequency, which is 151.130 MHz.kb4mdz wrote: Anybody kmow what radio system is used to set off the sirens?
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