PREPARING YOUR RADIO FOR USE
Attaching / removing the aerial
Attaching / removing the battery pack
1.
To attach, carefully align the aerial with
the socket. Screw in the aerial clockwise
(taking care not to cross the thread) until it
is seated firmly with the accessory cover’s
rubber ring between the aerial and the top
of the radio.
(A)
2.
To remove, unscrew the aerial anti-clockwise.
(B)
1.
To attach, locate the pegs on the bottom of the
battery into the slots on the radio and press
the top of the battery against the radio. Secure
battery by tightening the screw clockwise
by hand. (Do not use any implement or
overtighten).
(C)
2.
To remove, unscrew the locking screw anti-
clockwise and pull the battery away from the
top of the radio.
(D)
A
B
C
D
SWITCHING ON, RECEPTION
AND SWITCHING OFF
1.
To switch on, rotate the on/off/volume control
(1) on the top of the radio clockwise.
2.
The radio will enter standby mode. This is
indicated by the LED Amber flashing once
every 5 seconds, signalling that the radio is
ready for use.
3.
Adjust the volume control (1) to select the
desired volume level.
4.
Using the channel buttons (3) ensure you have
the correct channel selected.
5.
When receiving a valid signal, the LED will
illuminate steady green and audio will be
emitted from the radio’s speaker or audio
accessory (if attached)
6.
When finished using the radio, switch off by
turning the on/off/volume control (1) until it
clicks and the radio will be switched off.
TRANSMITTING
1.
Perform steps 1 through to 5 of ‘Switching On,
Reception and Switching Off.’
2.
Before transmitting, monitor the channel and
make sure it is clear.
3.
When receiving a signal, wait until the signal
stops before transmitting. The transceiver
cannot transmit and receive simultaneously.
4.
Press the PTT (Push To Talk) button (4) to begin
your transmission. To confirm transmission the
LED illuminates red.
5.
For best transmitted speech quality you must
talk directly into the radio’s microphone (10) at
around 4cm between your mouth and the radio.
6.
Please note: if you talk into the top of the
radio or with your mouth further away, you will
transmit poor quality speech.
7.
When the transmission is finished, release the
PTT button.
EU DECLARATION OF CONFORMITY
We. Entel UK Limited of:
320 Centennial Ave,
Centennial Park,
Elstree
WD6 3TJ United Kingdom
Tel +44 208 236 0032
Declare under our sole responsibility that
this equipment complies with the essential
requirements EU Directive 1999/5/EC, and
conforms to the following standards or other
nominative documents;
HT644
EN 301 178 v2.2.1
EN 301 489 -1 & EN 301 489 -5
EN 60950-1:2006 A1,A2,A11, A12
Name: Mike Jamieson
Position: Quality Manager
Date: 18 December 2015
Signed:
www.entel.co.uk
HT644
Series
Quick Start User Guide
Designed in the United Kingdom
