Document Library
The following documents are standard reading for any broadband engineer / technician. I have posted this documents in the document library as a quick reference. They are freely available in other sources, but sometimes it is nice to have them all in one location:
DOCSIS Specifications
- DOCSIS 2.0 RF Interface Specification (RFI) - Read first for DOCSIS
- DOCSIS Baseline Interface Specification – DOCSIS BPI+ encryption
- DOCSIS Timing Interface Specification – DOCSIS DTI
DOCSIS 3.0 Based Specifications
- CM-SP-PHYv3.0 Physical Layer Specification
- CM-SP-MULPIv3.0 – MAC and Upper Layer Protocols Interface Specification
- CM-SP-OSSIv3.0 Operations Support System Interface Specification
- CM-SP-SECv3.0 Security Specification
- CM-SP-CMCIv3.0 Cable Modem CPE Interface Specification
Application Documents
- Agilent Spectrum Analysis Basics
This app note from Agilent is a premier tutorial on spectrum analyzer basics, but does not stop there. It goes into much of the mathematical details of how correction coefficients are calculated for digital signals. This is a must read for anyone in broadband communications. - Spectrum Analyzer Measurements and Noise
When using a spectrum analyzer to make measurements in any system, it is likely that one will attempt to measure signals which are very close to the noise floor. Making these measurements close to the noise floor will cause errors. This document explains why and how to correct for the errors.
