In a message dated 3/15/07 3:54:35 PM Central Standard Time, snipped-for-privacy@telecom-digest.org writes in a comment on a post by snipped-for-privacy@bbs.cpcn.com:
[TELECOM Digest Editor's Note: The earliest radio for police operated
> on the standard broadcast band; I think they were one-way talk out to
> officers and were on 1620 KC, where officers could be given direct
> instructions over the air without them having to call in for details. > PAT]
In the late 1930s and in the 1940s the Oklahoma Highway Patrol used 1626 kc/s for two way communications.
Wes Leatherock snipped-for-privacy@aol.com snipped-for-privacy@yahoo.com