Originally Posted by vlittle
Nice write-up Allen. One other issue is that aircraft need far less transmit power than terrestrial stations, due to lack of obstacles. It is good Karma to use only the power that you need for the task.
I've had good luck with a 300 mW transmitter. I thinK that tx power over a watt or two would be pushing it.
The dilemma we face with aviation trackers is that low power is sufficient at altitude but we need more power down low for emergencies. The main reason I use a tracker is so I can be found after an unplanned arrival in a soybean field....down in a valley.
Maybe some day we will have an easy way to modify transmitter power dependent on AGL altitude but that will require a tracker with a terrain database. Until then I will run my tracker at full power.