Just read the other day that newer EPIRBS have a test frequency that you can
pick up on your FM radio, something like 99.5 MHz. You tune the radio to
that frequency, switch the EPIRB to "test" and you should hear an
oscillating tone if its working properly. Don't know if this is true or
not.

I thought many older EPIRBS had a "test" function that used an LED? Maybe
this just was a test for the battery?

"terry markovich" wrote in message
news
I have developed a 406mhz epirb tester, currently for the aviation elt
market. I am curious about the demand in the marine market?

Terry