It is very related. The 5N is a prefixes given to Nigeria for radio
call signs. Aircraft registrations are issued as radio callsigns.

As far as Canada is concerned, C is also a valid call sign prefix.
The Canadiens just have not used it for amateur radio. For example,
the U.S. has A, N, W, and K. For ages, the U.S. issued only W and K
to amateurs. N was reserved for the Navy and aircraft, A was reserved
for the Army/Air Force. It wasn't until 1976 that the FCC began to
allow other than W or K as amateur prefixes because of the 200-year
celebration. This is why the MARS stations had prefixes other than W
or K.


Maurice Givens



"Ron Natalie" wrote in message om...
"Robert Lyons" wrote in message ...


Interesting - 5N is also an amateur radio callsign prefix for
Nigeria. Is this a general rule? Are the two prefix systems indeed
related?

It's not strictly related, obviously as canada is C- and not VE, etc..
but a lot of it's the same, especially once you get out of the British
Commonwealth and the other LARGE countries.