CDMA/AMPS Mobile Station Tester NJZ-1800BJ

  • Measuring Instrument


Discontinued on July 31, 2010 Support Will close on Septemberb30, 2015


  • CDMA Cellular (US, Korea, and Japan), CDMA PCS (US and Korea), and AMPS Cellular coverage in one instrument.
  • Built-in automatic test: 3 channels tests at a radio system and automatic handoff from CDMA to AMPS(Option)

CDMA call processing functionality:

Radio system support IS-2000(US, Korea, and Japan), IS-95A (Cellr/IS95A), TSB-74 (Cellr/TSB74),
ARIB T53 (Cellr/T53), J-STD-008 (PCS US, PCS Korea P0, and PCS Korea P1)
Handoff support Softer handoff between two sectors A and B
Hard handoff between any two RF channels
Multi-mode hard handoff between Cellr/IS95A and PCS US, between Cellr/TSB74 and PCS US, and from IS-2000 to IS95A.

CDMA Signal Generator

Frequency 869 MHz to 894 MHz (Cellr/IS95A and Cellr/TSB74), 832 MHz to 834 MHz, 843 MHz to 846 MHz, and 860MHz to 870 MHz (Cellr/T53), 1805 MHz to 1870 MHz (PCS Korea P0 and P1), 1930 MHz to 1990 MHz (PCS US)
Accuracy Same as reference oscillator


Range -110 dBm to -20 dBm
Accuracy ±1.0 dB at <= -50 dBm
±2.0 dB at >-50 dBm
Resolution 0.1 dB

CDMA modulation

Type QPSK based on IS-95A and cdma2000
Residual rho >=0.912 (typically >0.95)
Data generation patterns PN9 for loopback, Single Byte Pattern for TDSO
Power control bit Always up, Always down, Open loop

CDMA Analyzer

Input frequency range

824 MHz to 849 MHz (Cellr/IS95A and Cellr/TSB74), 887 MHz to 889 MHz,
898 MHz to 901 MHz, and 915 MHz to 925 MHz (Cellr/T53),
1715 MHz to 1780 MHz (PCS Korea P0 and P1), 1850 MHz to 1910 MHz (PCS US)

CDMA power measurement

Range -60 dBm to +39 dBm
Accuracy ±1 dB (typically ±0.6 dB) at >= 0 dBm
±2 dB (typically ±1.2 dB) at >=-40dBm and < 0 dBm
±3 dB (typically ±1.8 dB) at < -40 dBm
Resolution 0.2 dB

CDMA modulation measurement

Input range -20 dBm to +39 dBm
Modulation type OQPSK based on IS-95A

Rho measurement

Single Code Rho IS-95 and cdma2000 RC1,2
Multi Code Rho cdma2000 RC3,4
Range 0.9 to 1.0
Accuracy ±0.01 at >= 0.95 ±0.02 at < 0.95
Resolution 0.001

Frequency error measurement

Range ±10 kHz
Accuracy ±(30Hz + frequency reference accuracy) at average of 4 measurements
Resolution 1 Hz

CDMA frame error rate measurement(loopoback)

Method Data loop back at full rate per service option 002 or Service
Option 009 supporting confidence limits (95% or off) as outlined in TIA/EIA-98A Appendix A.1.
Range 0% to 100%
Resolution 0.00001%
Displayed results Measured FER, number of errors, number of frames tested, and one of the following: pass, fail, or --- (pass/fail not applicable)

CDMA frame error rate measurement (TDSO)

Method Test Data Service Option per Service Option 32 supporting confidence limits (95% or off)
Range 0% to 100%

DC power supply

Range 3 VDC to 12 VDC at 0.1 VDC step , (Max. 1 A)

DC current measurement

Range 0 mA to 1000 mA in 1 mA Resolution
Accuracy ± 3 mA at <= 100 mA , ±30 mA at > 100 mA

RF Input/Output

Maximum safe reverse power +41dBm (12.6W, CW; supplemental characteristic)
Impedance 50 Ω nominal, Input SWR: < 1.5:1
Connector N-type (f)

Reference oscillator

Frequency 10 MHz
Frequency accuracy ± [(Time since calibration x Aging rate) + Temperature effects + Accuracy of calibration]
Aging rate ±0.1 ppm per year
Temperature stability ±0.1 ppm at 0 degC to 40degC
Reference output level +3dBm, 50 Ω, supplemental characteristic
Reference input level 0 dBm to 10 dBm, 50 Ω, supplemental characteristic
Connector BNC (f) connector

General Specifications

Dimensions 350(W)X150(H)X400(D) mm
Weight < 15 kg
Operating temperature 0 degC to +40 degC
Storage temperature -20 degC to +60 degC
Operating humidity 15 %RH to 95 %RH @ +40 degC
Power 88VAC to 264 VAC, 47 Hz to 63 Hz, < 250VA
Safety European Council Directive 73/23/EEC
IEC 61010-1:1990+A1+A2 / EN 61010-1:1993+A2
CAN/CSA C22.2 No. 1010.1-92
EMC: European Council Directive 89/336/EEC
EN 61326-1:1997 + A1
CISPR 11:1997+A1 / EN 55011:1998 Group 1, Class A
Altitude < 2000 meters

* Specifications may be subject to change without notice.