User Guide

After Sales
Technical Documentation
Performance Specifications
THX–4
Original, 09/94Page 2–6
Technical Specifications
General Specifications of THX–4 Series Transceiver
Temperature range –10 _ C to +55 _ C
Operating time (with BTH–6/8SM)
S talk time 70 min s
S standby time 15 hrs
Supply voltage 5.25 V to 9.0 V (nominal 6.0 V)
Nominal current consumption
S standby mode 35 mA
S conversation mode 425 mA
Dimensions (h x w x d)
S transceiver + BTH–6S/8S 147 x 54 x 17.5 mm
S transceiver + BTH–6H/8H 147 x 54 x 23.4 mm
Weight
S transceiver + BTH–6S/8S 200 g
S transceiver + BTH–6H/8H 345 g
Electrical Specifications
Transceiver General Features
Number of channels
1320 duplex operation
Duplex spacing 45 MHz
Channel spacing 25 kHz
Frequency tolerance < 2.5 ppm
Frequency control synthesized
Voice modulation frequency modulation
Compander 2:1
Data modulation Manchester–coded, 16 kbaud FSK
Data speed 8 kbits
Word format BCH encoded