Radio Shack iScan PRO-107 - Manual (Page 10)

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Using the Main Power Cut-Off Switch
The Main Power Cut-Off switch is only used to prevent battery drain
when iSCAN is not used for long periods of time. Do not use the
Main Power Cut-Off switch on a routine basis.
Always press and hold to turn off iSCAN before switching the
Main Power Cut-Off switch to OFF and before removing the
batteries. Failure to turn off iSCAN using may result in data loss or
corrupted memory on the SD card.
w
Warning: The Main Power Cut-Off switch will not protect your
iSCAN from damage due to battery leakage when iSCAN is stored
for long periods of time. Always remove the batteries from iSCAN
when placing it into long-term storage.
Connecting Earphones or Headphones
For private listening, you can plug 1 /
8
inch (3.5 mm) mini-plug
earphones or headphones (not supplied) in the HEADPHONE jack
on top of iSCAN. This automatically disconnects the internal speaker.
Connecting an External Speaker
In a noisy area, an amplified speaker (not included, available at
your local RadioShack or RadioShack.com) might provide more
comfortable listening. Plug the speaker cable’s
1 /
8
inch (3.5 mm) mini-
plug into iSCAN’s HEADPHONE jack.
Listening Safety
Do not wear headphones, earphones, or earbuds while operating a
motor vehicle or riding a bicycle. This can create a traffic hazard and
could be illegal in some areas. To protect your hearing, follow these
guidelines:
• Do not listen at high volume levels. Extended high-volume
listening can lead to permanent hearing loss.
• Set the volume to the lowest setting. Then turn on your iSCAN
and adjust the volume to a comfortable level.
• Avoid increasing the volume. Your ears will adapt to the volume
level, so a level that does not cause discomfort could still damage
your hearing.
Basic Operation
Turn on iSCAN and Set Squelch
1. Slide Main Power Cut-Off to the ON position.
2. Press and hold .
3. Turn SQUELCH to the midpoint (12 o’clock) position.
Power
Squelch
• The higher the squelch is
set, the stronger the signal
required to break the
squelch.
• To hear weaker signals,
turn SQUELCH
counterclockwise to
increase sensitivity
Main Power
Cut-Off
Lift
cover