I'm just starting to use 2m and 70cm bands, which normally use repeaters to extend range beyond a mile or two (limited mostly by line of sight, as I understand it).
When I'm at home, however, I'm not at all sure I have line of sight to any of the nearby repeaters (I live in a small, fairly steep ravine that causes issue with cell phone signal on some networks) -- assuming I get my radio programmed correctly (right frequency, offset, tone, etc.), how can I be sure my signal is actually getting to the repeater?
Even if I can hear activity on the repeater, it's highly likely they're running much more power than the 1/4/8 watts my hand-held puts out, so I might well be able to hear the repeater when the repeater can't hear me. How can I be sure I'm getting out?