Terminology • Metrics • Field engineering definitions
This document defines key terms used across Charter network engineering, diagnostics, and field operations.
- SNR — Signal‑to‑Noise Ratio
- MER — Modulation Error Ratio
- Ingress — Unwanted RF entering the plant
- Tilt — Frequency‑dependent signal imbalance
- Suck‑out — Narrowband signal dip
- CM — Cable Modem
- CMTS — Cable Modem Termination System
- OFDM/OFDMA — DOCSIS 3.1 modulation schemes
- Bonding — Combining multiple channels for throughput
- Drop — Cable from tap to customer premises
- Tap — Device that splits signal to multiple homes
- Splitter — Divides signal within customer premises
- Line Extender — Amplifies signal in the plant
- Tuning Report — Summary of adjustments and results
- Field Log — Technician notes and measurements
- Service Record — Ticket history and resolution
All content is sanitized and contains no internal or proprietary operational details.