NHX Introduction

The NHX-7 is a radio transceiver unit designed for the ETACS network. It is a power class 4 transceiver providing 6 power levels with a maximum output power of 0.45W. Nominal battery voltage is 3.6 V and operating voltage on logic chips is 2.82 V.

The transceiver consists of UIF module, system module, assembly parts and battery pack.

The antenna is fixed or retractable helix. The user interface has LCD and keyboard.

The accessories are same as in other Nokia DCT3 products except the active car installation kit, CARKIT-91.

Design

Technical Documentation General Information and NAM Programming

List of Accessories

The transceiver accessories available are listed below and described fully in the section Non-serviceable accessories..

Unit

Type code

Material code

Transceiver

NHX-7

0501668

Standard Battery Pack, 900 mAh

BMS-2S

0670225

Vibrator Battery Pack, 900 mAh

BMS-2V

0670204

Extended Battery Pack, 1500 mAh

BLS-4

0670207

Slim Battery Pack, 900 mAh

BLS-2

0670206

Special Battery Pack, 1000 mAh

BLS-2H

0670235

AC Travel Charger ( EUR ), 207 - 253 Vac

ACP-7E

0675144

AC Travel Charger ( US ), 108 - 132 Vac

ACP-7U

0675143

AC Travel Charger ( US ), 207 - 253 Vac

ACP-7P

0675147

AC Travel Charger ( US ), 198 - 242 Vac

ACP-7C

0675158

AC Travel Charger ( UK ), 207 - 253 Vac

ACP-7X

0675145

AC Travel Charger ( UK ), 180 - 220 Vac

ACP-7H

0675146

Fast Travel Charger ( EUR ), 90 - 264 Vac

ACP-9E

0675149

Fast Travel Charger ( US ), 90 - 264 Vac

ACP-9U

0675151

Fast Travel Charger ( UK ), 90 - 264 Vac

ACP-9X

0675150

Cigarette Lighter Charger

LCH-9

0675120

Desktop Stand

DCH-9

0700049

Mobile Holder

MBC-1

0700060

Swivel Mount

HHS-9

0620037

Headset

HDC-9

0694053

Belt Clip

BCH-12

0720098

General Information and NAM Programming

Technical Documentation

General Specifications of Transceiver NHX-7

Table 1. General Specifications

Parameter

Notes

Cellular system

ETACS

Temperature Range ( Extreme conditions ) - Specification fullfilled

-10 C ... +55 C

Operation times with BMS-2S standart battery

- Talk time

1h30 ... 4h

- Standby time

30h ... 45h

Nominal battery voltage

3.6 V

Nominal current consumption

- Standby mode ( typical )

22 mA

- Call mode, 0.45W (typical)

500 mA

Dimensions ( h x w x d )

145.3x47.7x29.7

- Tranceiver, inluding BMS-2S standart battery

Weight

155g

Volume

Table 2. Maximum ratings

Parameter

Value

Battery voltage, idle mode

-0.3 ...4.8 V

Charger input voltage

-5.0 ... 16 V

Operating temperature range

-10C to +55C

Battery charging temperature

+5 C to +45C

DC Characteristics

Table 3. Supply Voltages and Current Consumption

Line Symbol

Minimum

Typical / Nominal

Maximum

Unit

Supply battery voltage

3.1

3.6

4.8

V

Battery cut off voltage ( HW )

2.7

2.8

2.9

V

Regulated logic supply voltage ( VL ) - Supply current

2.73

2.82

2.90

V

0

40

mA

Technical Documentation General Information and NAM Programming

Table 3. Supply Voltages and Current Consumption (continued)

Line Symbol

Minimum

Typical / Nominal

Maximum

Unit

Regulated analog supply voltage ( VA ) - Supply current

2.73

2.82

2.90

V

0

100

mA

Regulated RX supply voltage ( VRX ) - Supply current

2.73

2.82

2.90

V

0

50

mA

Regulated TX supply voltage ( VTX ) - Supply current

2.73

2.82

2.90

V

0

60

mA

Current consumption, idle mode

45

mA

Current consumption, standby mode

22

mA

Current consumption conversion mode, low power

150

mA

Current consumption conversion mode, high power

500

mA

Backlights current, white keymat

70

mA

Backlights current, black keymat

90

Table 4. General Specification of AC Characteristics

Parameter

Value

TX frequency band

872.0125 ... 904.9875 MHz

RX frequency band

917.0125 ... 949.9875 MHz

Number of RF channels

1320 duplex operation ( ETACS )

Duplex spacing

45 MHz

Channel spacing

25 kHz

Frequency tolerance

+-2.5 ppm

Frequency control

synthesized

Compander

2:1

Data modulation

16 kbaud FSK, Manchester coded

Data speed

8 kbit/s

Word format

BCH encoded

General Information and NAM Programming

Technical Documentation

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