User Guide

115
12
OTHER FUNCTIONS
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■ Time-out timer
To prevent accidental prolonged transmission, etc., the trans-
ceiver has a time-out timer. This timer cuts a transmission
OFF after 1, 3, 5 or 10 min. of continuous transmission. This
timer can be cancelled (default).
Approx. 10 sec. before the time-out timer is activated, the
transceiver emits a beep tone as a warning.
This can be selected with “TOT” in set mode.
(p. 90)
■ PTT lock
To prevent accidental transmission, etc., the transceiver has a
PTT lock function.
This can be selected with “PTT LOCK” in set mode. (p. 90)
■ [MIC/SP] jacks
To connect external equipment such as speaker, microphone,
TNC, etc. refer to the diagram below.
The center terminal of [MIC] outputs 3.3 V DC via 330 Ω
resistor.
External
speaker
the [SP] jack
SP
SP
GND
3.5 (d) mm
plug
the [MIC] jack
33 kΩ
330 Ω
MIC
MIC
GND
External
microphone
2.5 (d) mm
plug
PTT
3.3 V (See below)
Impedance 8 Ω
Impedance 2 kΩ
MIC
3.0 V
MIC GND
INTERNAL SP
SP (AF OUT)
CLONE
SP GND
MENU screen ➪ SET MODE ➪ PTT LOCK
(Push [MENU/LOCK]) (Rotate [DIAL]
†
, then push [ï](5)
†
.)
MENU screen ➪ SET MODE ➪ TOT
(Push [MENU/LOCK]) (Rotate [DIAL]
†
, then push [ï](5)
†
.)
†
[DIAL] ↔ [
∫∫
](2)/[
√√
](8) [ï](5) ↔ [
≈≈
](6)