HT544

The first time you handle Entel’s HT544 Series 2.0 portable you will be impressed by its superior build quality. The HT544 has been designed specifically for those requiring a no compromise marine portable.

From the rugged ergonomic design that fits comfortably in your hand, to the exceptionally loud audio, the HT544 Series 2 portable easily outclasses the competition.

The HT544 portable is IECEx (II 2 G Ex ib IIA T4) Intrinsically Safe certified and approved to the essential IEC 60945 marine environmental standard and fully Submersible to IP68 (2 meters depth for 4 hours).

Entel’s HT544 Series 2 portable will exceed the expectations of even the most experienced radio user.

Downloads

Brochure (EN) Download

User Guide (EN) Download

General

Environmental protection to IP68 (2 Meters for 4 hours)
The practical HT544 Series 2.0 portable enjoys an IP68 (2 Meters for 4 hours) rated construction, which means that they are dust protected and fully Submersible.

MILSTD 810C/D/E/F
Meeting MIL-STD 810C/D/E/F and providing commercial grade construction for tough, enduring performance. Entel's HT544 Series 2.0 portable conforms to stringent standards, enabling it to withstand the everyday rigours of shock, vibration and the corrosive effects of dust and moisture, ensuring many years of trouble free use.

Intrinsically Safe
The HT544 Series 2 portable is IECEx (II 2 G Ex ib IIA T4) Intrinsically Safe certified.

1800mAh Li-Ion battery
The HT544 Series 2.0 portable is supplied with the latest intelligent Lithium-Ion battery technology as standard. One key advantage of Lithium-Ion battery technology is the way it eliminates ‘memory effect’ meaning there is no need to fully discharge your battery before recharging. Therefore you are assured a full charge each and every time you take your Entel battery from its charger.

Flash upgradeable to add future features
Entel adds and improves features on its HT544 radio by way of software updates. Using Flash Upgrade technology your Entel HT544 radios can be upgraded by your Dealer at any time.

Robust accessory socket
The socket has been specifically designed so that when an accessory is secured to the portable, the connection can withstand any amount of punishment; from dropping to careless misuse. Furthermore, the securing bolt incorporates a shearing point to protect the connector.

Channels
The HT544 portable provides all INT, USA & CAN Marine channels.

Convenience

Keylock
To avoid accidental operation your radios keys & controls can be locked by the user or, if set, automatically by the radio.

VOX hands free (with audio accessory)
When using an Entel VOX enabled audio accessory, your HT544 portable can operate totally hands free. All you need to do is talk and the HT544 portable will automatically transmit for you.

Scan
The HT544 Series portable has the facility to scan for an active channel. When the channel is found, the radio will automatically select the channel for you.

General

Frequency Range	156 - 163.275MHz
Channels	All INT, USA & CAN Marine Channels
Channel Spacing	25 kHz
Communication Method	Simplex / semi duplex
Antenna Impedance	50 ohm
Antenna	Whip / stubby
Battery Type	1800 mAh Li-Ion battery pack
Power Supply Voltage	7.4V DC
Current Drain (nominal)	40mA
Duty Cycle (5/5/90)	12.5 hours
Microphone	Internal condenser microphone
Operating Temperature	-20° to +55°C
Construction	MIL-STD 810C/D/E/F
IP Rating	IP68 (2 meters depth for 4 hours)
Size (mm)	59.5(W) x 130(H) x 37(D)
Weight	277g with battery and aerial

Transmitter

Power Output	High – 4W / Low - 1W
Modulation	8K0G3E/16K0G3E
Oscillator Method	PLL
Frequency Stability	2.5PPM
Maximum Deviation	±5 kHz
Audio Distortion	< 5% (1 kHz 60%)
Spurious Emission	-68 [dBc]
Hum & Noise	-40 [dB]

Receiver

Receiver Type	Double Super Heterodyne type
Sensitivity	-0.25uV (12dB SINAD)
Frequency Stability	2.5PPM
Spurious Rejection	-60 dB
Adjacent Channel Selectivity	-60 dB (Narrow) , -70 dB (Wide)
Distortion	< 5% (1 kHz 60%)
Hum & Noise	-40 dB
Audio Output	1W