Radio Shack TRC-494 Portable Radio User Manual


 
12
CB COURTESY
Wait for a pause in someone
else’s transmission before you
ask for a break.
If you do not receive an answer
to your call after a second
attempt, sign off and wait sev-
eral minutes before trying again.
Do not hold down the
PUSH TO
TALK
button when you are not
talking. (This is called dead key-
ing.)
Assist callers with directions,
road conditions, and any other
reasonable requests.
MAXIMUM RANGE
The maximum range and quality of
CB transmissions vary depending on
these conditions:
The type and quality of antenna
used
The height of the antenna’s
mounting location — the higher
the antenna, the better the sig-
nal’s range
The surrounding terrain —
mountains and tall buildings limit
the range
Weather conditions
The current setting of
RANGE
on
your CB
The number of nearby CBs
operating on the same channel
Standing Wave Ratio (SWR)
between the antenna and the
CB. You can check the SWR
between the CB and a mobile
antenna using an SWR tester
(Cat. No. 21-523). Follow the
instructions supplied with the
SWR tester and the mobile
antenna to change the SWR, if
necessary.
21-1589.fm Page 12 Thursday, August 5, 1999 10:10 AM