At 5/3/2007 07:48, you wrote: >Bill Powell wrote: > > > (b) Provisions are incorporated to limit transmission by the station > > to a period of no more than 3 minutes in the event of malfunction in > > the control link." ><snip> > > > > Nothing about timeout though. > >The 3-minute timeout timer is the accepted means of accomplishing the >above.
...except that it doesn't! BTW, the 3 minute control link failure or "heartbeat timer" rule is still in Part 97 (97.213b). This is the most ignored rule in Part 97, as virtually no one implements such a control link. It's probably best to go on ignoring it, as devising non-applicable circuits or procedures won't make it go away. Bob NO6B
