Charter Network Engineering • Field operations • Diagnostics workflow
This document outlines the end‑to‑end deployment and operational workflow used in Charter field engineering.
It covers customer issue intake, field assessment, RF diagnostics, DOCSIS tuning, validation, and reporting.
- Customer reports service degradation or intermittent connectivity
- Trouble ticket generated
- Remote diagnostics performed when possible
- Technician arrives on‑site
- Confirms symptoms with customer
- Checks signal levels, noise, and installation quality
- Spectrum analysis
- Upstream/downstream impairment detection
- OFDM/OFDMA profile evaluation
- Adjust levels, replace components, correct tilt
- Validate modem bonding and CMTS interactions
- Apply tuning workflows from:
DOCSIS-Tuning-Workflow.md
- Throughput tests
- SNR/MER verification
- Confirm service restoration with customer
| Metric Category | Purpose | Examples |
|---|---|---|
| 📡 RF Performance Metrics | Validate signal health and noise levels | SNR, MER, upstream/downstream power |
| ⚙️ DOCSIS Metrics | Ensure modem stability and throughput | Correctables/uncorrectables, ranging, channel bonding |
| 🛠️ Field Operations Metrics | Improve service delivery and reduce repeat calls | First‑attempt resolution, call volume, escalation rate |
| 📊 Infrastructure Health | Track plant reliability and upgrade impact | Amplifier performance, node health, noise sources |
| 😊 Customer Experience Metrics | Measure service quality improvements | Resolution time, satisfaction indicators |
(This replaces the “Authentication Workflow” section used in other repos while keeping the same structural slot.)
| Step | Action | Purpose |
|---|---|---|
| 1 | Receive customer issue and validate symptoms | Establish baseline understanding |
| 2 | Perform RF and DOCSIS diagnostics | Identify noise, interference, or signal loss |
| 3 | Inspect physical infrastructure | Locate damaged cables, connectors, or plant components |
| 4 | Apply corrective actions and tune signal levels | Restore optimal performance |
| 5 | Validate improvements with RF and DOCSIS metrics | Confirm stability and service quality |
| 6 | Document findings and close service record | Ensure traceability and future reference |
| Step | Action | Tools Used |
|---|---|---|
| 1 | Assess current signal levels and quality metrics | RF meters, DOCSIS diagnostics |
| 2 | Identify noise sources and signal degradation | Spectrum analyzers |
| 3 | Tune amplifiers and adjust signal levels | Field equipment |
| 4 | Validate improvements with signal testing | Signal meters |
| 5 | Document baseline and final metrics | Field reports |
/architecture— system diagrams and layered breakdown/scripts— diagnostics and automation/config— templates and baselines
All content is sanitized and contains no internal or proprietary operational details.