BS 7573-2.7(1995) : 1995

Foreword
Introduction
1. Scope
2. Normative references
3. Switching diversity
3.1 General considerations
3.2 Isolation between the ports of a diversity switch
3.3 Delay difference between diversity channels
3.4 Switching due to the BER alarm
3.5 Synchronization time
4. Combining diversity
4.1 General considerations
4.2 BER/receiver input level characteristic
4.3 In-band amplitude dispersion characteristic
4.4 BER/phase difference characteristic
4.5 Fading signatures
Annex ZA (normative) Other international publications quoted in
         this standard with the references of the relevant
         European publications
Figures
1. Base-band switching equipment used in diversity systems
2. Arrangement for measuring the tolerable delay difference
     by a variable r.f. delay line
3. Arrangement for measuring the tolerable delay difference
     by a variable base-band delay line
4. Arrangement for measuring base-band switching equipment
     functions due to BER
5. Arrangement for measuring the synchronization time
6. Simplified block diagrams of diversity combining equipment
7. Arrangements for measuring the BER/receiver input level
     characteristic
8. Example of a BER/receiver input level characteristic
9. Arrangement for measuring in-band amplitude dispersion
     characteristic
10. In-band amplitude dispersion characteristic
11. Arrangement for measuring the BER/combiner entry points
     phase difference characteristic
12. Arrangements for measuring the signature of a combining
     system
13. Example of signature curves as a function of level
     difference delta P (positive delay)

Deals with measurements for diversity equipment used in digital microwave systems.