john graesser wrote:

Nothing is 100% reliable. You never know when you will be faced with using
broken or impaired equipment so you have to be prepared to improvise.
thanks, John.
KC5DWD

Good point. But nowadays, why not call the tower's published telephone
number on your cell phone? In the early '70s an acquaintance used 2M
autopatch to get landing clearance for the USAF C-130 Herculese he was
flying when its radios died - thought the Barksdale AFB tower folks were
mighty surprised to get that call long before the days of cell phones...

Jim Horn, WB9SYN/6