11
Operation
Note: Although this table lists the 10-codes’
meanings in the form of a statement, they
can also be phrased as questions (10-6: Are
you busy?, 10-20: What is your location?).
MAXIMUM RANGE
The maximum range and quality of CB radio
transmissions vary depending on the
following conditions:
• The type and quality of antenna used
• The height of the antenna’s mounting
location — the higher the antenna, the
better the signal’s range
• The surrounding terrain — mountains
and tall buildings limit the range
• Weather conditions
• The number of nearby radios operating
on the same channel
• Standing wave ratio (SWR) between the
antenna and the CB.
Note: Your CB radio’s transmission rage is
generally line-of -sight.
10-15
Message delivered.
10-16
Reply to message.
10-17
En route.
10-18
Urgent.
10-19
Contact _____.
10-20
What is your location?
10-21
Call _____ by telephone.
10-22
Cancel last message.
10-23
Arrived at the scene.
10-24
Assignment complete.
10-25
Meet _____.
10-26
Estimated time of arrival is _____.
10-30
Use caution.
10-31
Pick up.
10-33
Emergency traffic. Clear the channel.
10-34
What time is it?
10-41
Switch to Channel _____.
10-62
Cannot understand.
Code
Meaning
21-1706.fm Page 11 Wednesday, January 9, 2002 8:37 AM
