Radio Shack 21-534 Owner's Manual page 6

21-534.fm Page 6 Thursday, August 5, 1999 3:53 PM
Notes:
• An SWR reading will be different for different frequen-
cies (channels). If you transmit on one channel more
often than any other, select that channel. If you trans-
mit on several channels, choose a frequency in the
middle of the range of channels you use. (For example,
if you transmit on all 40 CB channels, choose Channel
20, because it is midway between Channel 1 and
Channel 40.)
• If you use a CB that has sideband modes (SSB), do not
select any of these modes. (Use only AM for SWR
measurements.)
• If you have an amateur radio, select the continuous
wave (CW) or tuning mode to check the SWR.
3. While you hold down the transmit key, rotate
on the front of the meter until the needle points to
TION
CAL.
6
CALIBRA-