Cy,

That reminds me. I recently built and tried out the MicroTrak 300 APRS
tracker ( .3 watt transmitter) in my aircraft. It managed over 25
miles direct on a ducky. Not bad for transmission. My ducky is about
9" long.

My comparison you quoted was more based on comparing the typical
aircraft radio "transmission" range and the similar range of the APRS
ducky tracker - both are about 5watts, both VHF. It would be
interesting to compare an aircraft tuned ducky reception vs
transmission range. Maybe I'll do that someday. All I need is a second
standard aircraft radio/antenna and a second aircraft to talk to.

On Oct 31, 7:32 pm, "Cy Galley" wrote:
Your reference that your 5 watt will work out 60 miles. Unfortunately the
old style ELT has only a .1 watt transmitter which is 1/50 the output of
your example. I do not have the expertise to tell how this will reduce the
distance, but I will bet it does curtail the range quite a bit.
--
Cy Galley
EAA Safety Programs Editor