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PREPARING YOUR RADIO FOR USE 

Attaching / removing the antenna

Attaching / removing the battery pack

1. 

To attach, carefully align the antenna with 

the socket. Screw in the antenna clockwise 

(taking care not to cross the thread) until it 

is seated firmly with the accessory cover’s 

rubber ring between the antenna and the 

top of the radio 

(A)

.

2. 

To remove, unscrew the antenna 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 over tighten)

 (C)

.

2. 

To remove, unscrew the locking screw anti-

clockwise and pull the battery away from the 

top of the radio

 (D)

.

B

A

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SWITCHING ON, RECEPTION 

AND SWITCHING OFF

1. 

To switch on rotate the on/off/volume 

control (1) on the top of the radio 

clockwise, you will hear a click from 

the control.

2. 

When the radio has passed its 

diagnostic tests, it will emit a fanfare 

tone.

3. 

The radio will enter standby mode. 

This is indicated by the LED flashing 

amber once every 5 seconds, signaling 

that the radio is ready for use.

4. 

Adjust the volume control (1) to select 

the desired volume level.

5. 

Using the channel control (2), ensure 

you have the correct channel selected.

6. 

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).

7. 

When finished using the radio, switch 

off by turning the on/off/volume control 

(1) counter clockwise until it clicks and 

the radio will be switched off.

TRANSMITTING

1. 

Perform steps 1 through to 5 above.

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 radio cannot transmit and receive 

simultaneously.

4. 

Press the Push-To-Talk (PTT) button 

(4) to begin your transmission. To 

confirm transmission the LED will 

illuminate red.

5. 

For best transmitted speech quality, 

you must talk directly into the radio’s 

microphone (8) 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.

C

D

All Rights Reserved. Copyright Entel UK Ltd.

DECLARATION OF CONFORMITY

Hereby, Entel UK Limited of 320 Centennial Park, Elstree, 

WD6 3TJ United Kingdom declares under his sole 

responsibility that the named products comply with the 

following standards and normative documents:
The Products covered by this Declaration  

DT885FF, DT985FF, DT844FF & DT944FF 

2014/89/EU Council Directive on Marine Equipment  

EN 300 720 v2.1.1  (DT985FF & DT885FF) 

EN 300 178 v2.1.1  (DT844FF & DT944FF) 

EN 301 843-1 v2.2.1  (DT985FF & DT885FF) 

EN 301 843-2 v2.2.1  (DT844FF & DT944FF) 

EN 300 113 v2.2.1 

EN 60945:2002 

EN 60950-1:2006/A11:2009/A1:2010/A12:2011/A2:2013  

EN 50566:2017, EN 62311:2008 & EN 62209 – 2:2010
Compliance is being ascertained by the following 

certificate(s):
EC type-examination certificate: (Module B) 

No 202120001/AA/00 DT885FF & DT985FF 

No 202120002/AA/00 DT844FF & DT944FF 

Product quality system certificate (Module-D)  

No P133 has been issued. 

Telefication bv 

The Netherlands. Notified Body No. 0560
And 

IEC 60079-0:2017 

EN 60079-0:2018 

IEC 60079-11:2011 

EN 60079-11:2012

Related certificates:  

IECEx: 

IECEx BAS 18.0094X 

ATEX: 

Baseefa18ATEX0152X

DT8xx marking  II 2G Ex ib IIB T4 Gb (-20°C ≤ Ta ≤ +40°C) 

DT9xx marking  II 2G Ex ib IIC T4 Gb (-20°C ≤ Ta ≤ +40°C) 
SGS Baseefa Ltd 

Rockhead Business Park, Staden Lane 

Buxton, Derbyshire SK17 9RZ 

Notified Body No. 1180
Quality Assurance Notification:  

Intertek Ltd. Intertek House. Leatherhead, KT22 7SB 

Notified Body No. 0359
Name: Mike Jamieson  

Position: Quality Manager  

Date: 20

th

 January 2020 

Signed:

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