-> SC> Today, there are 2 kinds of "PL tones" - the old fashioned low
-> SC> frequency audio tones from about 55 Hz to about 250 Hz (yes there
-> SC> specified frequencies - you can't pick a frequency "between" two
-> SC> the specified frequencies) - and since the early '70s a "digital"
->
->
-> Beg pardon?  Sure you can.  non-standard PL's are used in a number of
-> applications, such as a local SO we have, that has had a problem with
-> a person discovering their input and tone, and disrupting their
-> communications.
But non-standard tones aren't common. The wide majority of business
users, hams, and public safety use the common, standard tones...
Although, then again, anything's possible in this world...
BTW, need your email address (internet) so I can send you a message...
Matthew, KF4LHP
kf4lhp@juno.com
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