They are somewhat common in my area of south central Pa at least for the PD.
I have noticed that they have their regular meaning (not sure about 10-10)
but the ones I noticed are 10-1 (Weak Signal) 10-4 (Afirmative) and 10-10
(Negative). I used to play around with CBs and have these codes in a book
somewhere.
"Paul Hirose" wrote in message
ink.net...
The wheel seems to be coming full circle: plain language is gaining
popularity over 10-codes in emergency communciations. The problem is
that too many local 10-code dialects have developed over the years.
They can cause misunderstandings when multiple agencies work together
in a major incident.

In my area of California the sheriff departments use 10-codes but the
fire departments don't. I have no idea how long this state of affairs
has prevailed, since I only got into the scanning hobby last summer.

http://www.dailynews.com/Stories/0,1...008975,00.html

--
Paul Hirose
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