Appendix
Extending Battery Life
How long NiCd batteries last between
charges or replacement depends largely on your
operating habits, and how you care for the bat-
tery pack. The FT-51R offers several ways to
conserve battery power, and extend the life of
each charge. Knowing how to use these features
can be critical in emergencies.
APO
(Automatic Power-Off)
Obviously, turning the set off when not in use
saves battery life, and can also prevent damage
that might result to the batteries if they are over-
discharged. The FT-51R provides the APO sys-
tem to turn the transceiver off after
10,
20 or
30
minutes of key inactivity. From the factory, APO
is disabled,
can easily activate it by
pressing
then
to
select
Use
i n
toggle the time-out timer between
I
LI
, L
LI
,
(minutes) or
Press the
PTT
to exit.
When the APO function is activated,
ap-
pears at the right side of the display, and a timer
starts every time you press a key. If you don’t
press any keys for the selected time-out period,
and
us
long as
you
a r enot scanning or priority
monitoring,
will begin blinking, and if you
have the key beeper activated (page
16),
you will
hear a few short beeps about a minute before the
transceiver turns itself off.
If
you don’t press a
key in that minute, the transceiver turns off. Af-
ter that, you must switch the transceiver back on
for use.
If you need to monitor for a long period,
or if using an external
DC supply, you can deac-
tivate the APO feature in the same manner as
described before,
so
the display shows
Receiver Battery Saver
The FT-51R uses an automated battery saver
system to reduce current drain during squelched
monitoring. With the Battery Saver activated the
receiver monitors for
300 milliseconds, then
powers down for
a preset
or
variable ”sleep”
duration (which you select), then turns on and
monitors again for
300 milliseconds. This cycle
repeats continuously as the receiver checks for
incoming signals when active (powered on).
When the Battery Saver is enabled, a small
S
blinks near the right side of the display.
Summary of Contents for FT-51R
Page 1: ...FT 51R Dual Band FM Paging Transceiver...
Page 43: ......
