Dtmf Speed - Icom IC-T7H Instruction Manual

D Power saver duty cycle
This item sets the power saver duty
cycle — the ratio of receive circuit ON
to receive circuit OFF while standing
by. The duty cycle can be set to
AUTO, 1:4 or OFF. Setting to AUTO
conserves the most battery power.
AUTO Selects "1:4" duty ratio
when receiving no signal
for 5 sec., then "1:8" 60
sec. after that.
1:4 Standby : 125 msec.
circuit idle: 500 msec.
OFF No power save function.
D Battery voltage indication ON/OFF
This item sets the battery voltage in-
dication ON or OFF. When set to ON,
the battery voltage is indicated for 2
sec. at power ON (LOW V, 4.5–16 V
in 0.5 V steps). If the voltage sur-
passes 16 V, "OVER V" appears and
flashes regardless of this setting.
The power saver is deacti-
vated when more than
12 V DC is connected to
the [DC13.5V] jack.
D DTMF speed
When slow DTMF transmission
speeds are required (such as for
some repeaters) the transceiver's rate
of DTMF transmission can be ad-
justed.
D LCD contrast
This item sets function display con-
trast to one of 2 levels. "1" is for low
contrast and "2" is for high contrast.
OTHER FUNCTIONS
fastest
(100 msec. intervals)
slowest
(500 msec. intervals)
low contrast
high contrast
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