User's Manual Part 1
Table Of Contents
- Cambium PTP 650 Series User Guide
- Contacting Cambium Networks
- Purpose
- Cross references
- Feedback
- Chapter 1: Product description
- Chapter 2: System hardware
- Chapter 3: System planning
- Chapter 4: Legal and regulatory information
- Cambium Networks end user license agreement
- Acceptance of this agreement
- Definitions
- Grant of license
- Conditions of use
- Title and restrictions
- Confidentiality
- Right to use Cambium’s name
- Transfer
- Updates
- Maintenance
- Disclaimer
- Limitation of liability
- U.S. government
- Term of license
- Governing law
- Assignment
- Survival of provisions
- Entire agreement
- Third party software
- Compliance with safety standards
- Compliance with radio regulations
- Cambium Networks end user license agreement
Chapter 3: System planning Link planning
Calculation example
Suppose that the link characteristics are:
• PTP 650 variant = Mid
• Link Symmetry = 1:1
• Link Mode Optimization = TDM
• Modulation Mode = 64QAM 0.92 Dual
• Channel Bandwidth = 10 MHz
• Link Range = 60 km
The calculation procedure for this example is as follows:
1
Use Table 55 to look up the data throughput capacity rates:
Tx = 23 Mbits/s
Rx = 23 Mbits/s
Aggregated = 46 Mbits/s
2
Use Figure 40 to look up the Throughput Factor for 1:1, TDM, 10 MHz, Mid and Link Range
60 km. The factor is 0.86.
3
Multiply the rates from Step 1 by the Throughput Factor from Step 2 to give the throughput
capacity of the link:
Tx = 19.8 Mbits/s
Rx = 19.8 Mbits/s
Aggregated = 39.6 Mbits/s
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