Type 1600NRT   Combination items for hand free kit or handset testing

and explanation on operating software

Name of operating software:  1600NRT   (Similar to Type 1600RT)      Program Down Load      Other Type 1600N

Items of combination: 160N + 181C + 142EA-S (one set) + 140M + 147B    ( See below figure)

Test object: Hand free kit or handset

Explanation: (a) Functions: 

( I ) Earphone or receiver unit :

Frequency Response :

100Hz ~ 10KHz by using Model-142EA-S 

Sensitivity

AC Impedance Test  ( 2 ~ 1000 Ohms )  

DCR Test  ( 2 ~ 1000 Ohms )

Polarity Test

PAP Test  (Peak Acoustic Pressure Test)

Harmonic distortion test ( 0.1% ~ 20%) or buzz & rattle test.

( II ) Transmitter or microphone :

Frequency Response (100Hz ~ 8KHz) 

Sensitivity  

ECM  DC current test

Harmonic distortion test. ( 0.1% ~ 20%)

Supply power voltage to ECM: +0.9V ~ +9V adjustable

Loading resistor to ECM: 180 Ohms ~ 9 K Ohms, adjustable

(b)  Has analysis and statistics (Cp, Ca, Cpk) function

Model-160N	Model-181C	Model-142EA-S	Model-140M & 147B