Technical data

On/Off (1)

Press to turn the HT50 on. To turn the radio off, press and

hold the key for approximately 2 seconds. This is to avoid acci-

dental power off.

Hi/Lo (2)

Toggles between high and low transmit power (see specification

section 3.9). Use the low setting over short ranges to preserve

battery power.

VOL – Volume (4) & SQ – Squelch (5)

Press to select Volume or Squelch mode then use the ▲ and ▼

keys to adjust the level.

The display shows “VOL” or “SQL” for 3 seconds – if ▲ or ▼

are not pressed within this time, their function reverts to channel

select.

▲ / ▼ (6 & 7)

These keys will change the selected channel. Pressing VOL,

SQ, or , then

▲ or ▼ within 3 seconds will adjust the volume,

squelch, or backlighting level respectively. The bargraph will

indicate the level selected.

SCAN mode (8)

Scans through the channels stored in the channel memory (dis-

play shows “MEM SCAN”).

• Select channel and press twice to add to or delete from

Memory Scan (display shows “ENT” or “DEL” respectively).

HT50/HT51/HT53 & Axis 50 GMDSS

E03766 Issue 3.0

Fig 2.2 - HT50 display functions

a Bar graph –

Power up Battery level

Standby Battery level

Transmit Battery level

Volume mode Volume level

Squelch mode Squelch level

pressed Backlight level

b Personal channel indicator

c Channel selected

d Receiving or transmitting indicator

e High or Low power indicator

f Function indicator

g Selected channel stored in memory

h Channel inhibited from scan

i Scan mode selected