BS EN 60835-1-3:1997

Committees responsible
National foreword
Foreword
Introduction
Method
1 Scope
2 Amplitude/frequency characteristic
3 Group-delay/frequency characteristic
4 A.M.-to-p.m. conversion and a.m. compression
5 Differential gain and phase
6 Delay difference between two transmission paths
Annex
A (informative) Bibliography
Figures
1 Simplified arrangement for measuring the i.f.
    amplitude/frequency characteristic, the group delay/
    frequency characteristic and the a.m.-to-p.m. conversion
2 Example of oscilloscope display of an amplitude/
    frequency characteristic
3 Example of an oscilloscope display of a group/delay
    frequency characteristic
4 Arrangement for measuring a.m.-to p.m. conversion
    factor and amplitude compression
5 Example of spectrum analyser display when measuring
    a.m.-to-p.m. conversion
6 Curves for determining the a.m.-to-p.m. conversion
    factor Kp
7 Curves for determining the amplitude compression
    coefficient C
8 Example of space diversity receiving system where
    delay difference could be a problem
9 Arrangement for measuring delay difference between
    two branches of a diversity system
10 Delay difference measurement: CRT display for a
    synchronized switch
11 Delay difference measurement: CRT display for a non-
    synchronized switch
12 Arrangement for measuring the switch-over characteristic
    as a function of delay difference
13 Measurement of absolute delay of an i.f. component or
    sub-assembly

Concerned with measuring the important characteristics for transmitting performance of microwave systems having digital modulation. The need for these measurements may depend on bit rate and modulation method.