[aprssig] Spec question

[Matt Werner]

On page 23 of the APRS Protocol Reference v 1.0.1 it talks about
latitude and longitude format.

The examples given use capital letters for N, S, E, and W.  I do not
see where the spec text specifically says that it needs to be capital
letters however - the examples just USE caps.  It just says the
"letter E" for example.

If a packet contains a lowercase n, s, e, or w, is it considered
correct or not?  I know some pieces of software will accept it, where
others do not...

73 - Matt
KB0KQA