Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP
Path: utzoo!utgpu!water!watnot!watmath!clyde!rutgers!ames!ucbcad!ucbvax!Phobos.Caltech.EDU!mse
From: mse@Phobos.Caltech.EDU.UUCP
Newsgroups: mod.telecom
Subject: Radio Call Letters
Message-ID: <870322202851.01m@Phobos.Caltech.Edu>
Date: Sun, 22-Mar-87 23:29:06 EST
Article-I.D.: Phobos.870322202851.01m
Posted: Sun Mar 22 23:29:06 1987
Date-Received: Thu, 26-Mar-87 04:28:54 EST
Sender: daemon@ucbvax.BERKELEY.EDU
Distribution: world
Organization: The ARPA Internet
Lines: 20
Approved: telecom@xx.lcs.mit.edu

Responding to Kevin Burnett:
>I have noticed that along with the Kxxx and Wxxx call letters used for radio
>stations in the US, there are ones used for other countries as well (such as
>HCJB radio in Quito, Ecuador).  Where would I be able to find out how the
>lettering plan works?

International call sign prefixes are defined by the International Tele-
communications Union (Palais Wilson, Geneva, Switzerland) and are published
in many places.  Look at various publications of the American Radio Relay
League (ARRL), e.g., their Amateur Radio Handbook, or in various Shortwave
Radio Directories.  Also, reference works such as "Reference Data for Radio
Engineers."

It's a pretty haphazard system, I'd say - worse even than telephone numbering.
The block HCA-HDZ is Ecuador, while HBA-HBZ and HEA-HEZ are Switzerland.
The US has all the W's, K's, N's, and half of the A's.  The third world
fights for scraps of address space.

Martin Ewing, AA6E
Caltech Radio Astronomy