ml> i have to wonder about the TZ control line having seconds in it
It is based on a system that is still on the books but fell out of use back in 1916. It definetly allows for seconds as well as deploying the '+' character for west of prime meridian and '-' for east opposite of the TZUTC kludge.
ml> TZUTC is in place to clarify the time stamp in the message ml> header since it is local time with no other indication of where ml> "local" is...
Understood. Without the '+' character it becomes a meaningless string. Effectively it has been castrated.
ml> have you looked at any of the other PKT and packed message ml> formats?
Type 2, 2+ and 2.2. 2.2 only works with one of my uplinks. However this has nothing to do with utc offsets which are part of the msg body.