Yaesu FT-411 MKII Operating Manual - Ft-411
FT-411
MKII
O
PERATING
M
ANUAL
22
APO (A
UTOMATIC
P
OWER
-O
FF
)
This feature automatically puts the transceiver to sleep if the keypad/DIAL knob, PTT or
[CALL/DTMF] buttons are not used for a selectable period of 10, 20 or 30 minutes. One
minute before going to sleep, a warning melody will sound (
), and
the APO clock icon will begin to blink. If no key is pressed within the next minute, the
display will change to “OFF,” with the clock icon blinking. If power saving is also en-
abled, the small “S” will blink to the left of the clock icon, even though power saving is
NOT active in this condition.
The APO clock icon appears at the bottom right corner of the display whenever the APO
feature is enabled. To toggle it on and off, press [F/M] and then [APO(5)].
To check the current setting of the APO timer, turn off the transceiver and then press and
hold the “[APO(5)]” key while turning it back on. The display will show the current timer
setting (in minutes) before changing to the frequency display. If you want to change the
timer setting, turn the transceiver off again, and then press and hold either the “[TONE(1)],”
“[TSET(2)]” or “[LOW(3)]” key, for 10-, 20- or 30-minute APO time, respectively, while
switching the transceiver back on.
VOX (V
OICE
-A
CTUATED
T
RANSMIT
S
WITCHING
)
When the optional YH-2 Headset is connected to the EAR and MIC jacks on the top panel,
VOX can be activated for hands-free operation. Press [F/M] once and then [VOX(8)] re-
peatedly to toggle the VOX system between low sensitivity (“Lo” displayed), high sensi-
tivity (“Hi” displayed) and off (“OFF” displayed). After making your selection, wait a few
seconds for the display to return to the operating frequency. Use low sensitivity when in a
noisy area where other sounds might otherwise trigger the transmitter. When the VOX is
enabled (with either high or low sensitivity), a tiny reverse “V” is displayed in the upper
right corner.
NOTE: The VOX system is not designed work with the internal microphone or with exter-
nal speaker/microphones.
DTMF M
EMORIES
The FT-411
MK
Ⅱ
provides ten memories, numbered 0 through 9, for storage of DTMF
tone sequences of up to 15 digits each, for storage of commonly used remote DTMF con-
trol sequences or telephone numbers to be used on autopatching systems.
A special mode must be activated to use the DTMF memory features. This mode is toggled
on and off by pressing [F/M] and then the [CALL/DTMF] button on the top panel. A small
telephone icon is displayed above the rightmost frequency digit when this mode is active.