Entel HT 644 VHF

Radio HT644 execution in waterproof case capable of withstanding immersion to a depth of 5 m, IP68
With the included non-rechargeable battery of 2000 mAh for use in case of disaster and 1800 mAh rechargeable battery for everyday use.

The station  HT644 is possible to add channels for personal use in order to ensure internal communication.
The station is also has an LCD display for channel nastroekt, warning the battery is low, the received signal strength, and more.

 

Features

Range

156 - 163.275MHz

Number of Channels

19 nautical international channels

Channel spacing

25 kHz

Type of connection

Simplex

Impedance

50 ohms

Antenna

Spiral

Batteries

Non-rechargeable battery 2000 mAh / 1800 mAh rechargeable battery

Power supply voltage

7.4V DC

Microphone

Internal microphone

Operating Temperature Range

-20 ° to +55 °

Dimensions (mm)

59.5 (W) x 130 (H) x 37 (D)
W = 59.5 (62 including protrusions) B = 130 (145 including buttons) L = 37mm (41 projections including battery)
Weight

277 g (with battery and antenna)

 

Transmitter

Output power

1-2W

Modulation Type

16K0G3E

Type of generator

PLL

Frequency Stability

± 0.00025% (± 2.5PPM)

The maximum deviation

± 5 kHz

Audioiskazhenie

5% (1 kHz 60%)

Side radio emission

-68 DBc

Hum and noise

-40 DB

 

Receiver

Receiver Type

Superheterodyne with double frequency conversion

Sensitivity

-0.25uV (12dB SINAD)

Frequency Stability

± 0.00025% (± 2PPM)

Parasitic reflection

-60 DB

Adjacent channel attenuation

-70 DB

Distortion

3% Typical

Hum and noise

-40 DB

Output power

1

Speaker size

38 mm

Product Code: HT 644

Product Group: Two Way Emergency GMDSS VHF