Transmit Power; Transmit Time-Out Timer (Tot) - Standard Horizon HX870 Owner's Manual

8.3.1 Transmit Power

The TX output power of the HX870 is set to high level (6W) in factory default,
and the "[HI]" indicator is displayed on the top part of the screen.
To switch the TX output power:
1. Press ◄/► key repeatedly until the [HI],
[MD], or [LOW] soft key is displayed at the
bottom of the screen.
2. Press the [HI], [MD], or [LOW] soft key to
switch between HI (6W), MD (2W), or LO
(1W) output power.
• When the SBT-13 Alkaline Battery Case is used, only the low power
(1W) can be set.
• Depending on the remaining power of the SBR-13LI Battery Pack, the
HX870 may transmit with the medium or low power even though the
"[HI]" indicator is displayed.
8.4

TRANSMIT TIME-OUT TIMER (TOT)

When the PTT button is held down, transmit time is limited to 5 minutes. This
limits unintentional transmissions due to a stuck microphone. About 10 seconds
before automatic transmitter shutdown, a warning beep will be heard from the
speaker(s). The transceiver will automatically go to receive mode, even if the
PTT button is continually held down. Before transmitting again, the PTT button
must first be released and then pressed again.
Once the transmitter is shut down by the TOT, transmission to the last
channel is only allowed 10 seconds after the shutdown.
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TX
MEM
P-SET
VOL
LAT
LON
TIME
TX
MEM
P-SET
VOL
LAT
LON
TIME
NOTE
NOTE
16
USA HI
P
A
C
A
DISTRESS
16
33 ° 37.120 TX USA
s
118 ° 09.582
W
LOC 09.56
AM
MEM
P-SET
DISTRESS
VOL
LAT
16
USA LO
LON 118 ° 09.582
P
TIME LOC 09.56
A
C
A
DISTRESS
33 ° 37.120
s
118 ° 09.582
W
LOC 09.56
AM
MD
P
A
C
A
33 ° 37.120
s
W
AM
HX870