Network NoiseHawkAI solves the ongoing problem of pinpointing network noise in the cable network. This problem has plagued DOCSIS HFC Networks for years, with limited tools available to find the problem area of the network. Whether it is a bad amplifier, bad tap or coupler, finding such issues usually involves many expensive hours spent driving around and searching for the damaged piece of equipment.
Wireless routers are at the heart of today’s residential and business networks. While wired connections are still common, more employees and customers than ever are using Wi-Fi on laptops, smartphones, tablets, and other devices to get work done.
The only constant in technology is change. High-speed broadband is no exception, and the changes lead to faster and faster speeds for consumers. But these high speeds also mean higher requirements from broadband networks. One of the latest evolutions in broadband technology is 10G over fiber.
This DOCSIS® 3.1 Headroom Calculator performs a headroom calculation for the Transmit Channel Set according to DOCSIS® 3.1 Physical Layer Specification [CM-SP-PHYv3.1-I20-230419].
'Headroom' is the difference between CM maximum power transmit capabilities and its actual transmit power. Due to the fact that DOCSIS 3.1 modems are capable of bonding multiple channels into the Transmit Channel Set, there are 2 different headroom calculations: Overall Transmit Channel Set Headroom and Headroom for each Transmit Channel. Additionally, we calculate the Worst Parameters across all the channels in the Transmit Channel Set.
For the cases where the CMTS RX Power is different that CMTS Set Point, adjustments calculated for all the applicable parameters.
For additional information please refer to "SCTE-2023 - Technical Paper: Cable Modem Transmit Headroom Resiliency Management".
Reported TX power, dBmV
Channel width, MHz
Integration Bandwidth, MHz
CMTS setpoint RX, dB
CMTS actual RX, dB
Channel TX Power, dBmV
P1.6 r_n dBmV
TX Headroom, dB
CMTS RX Power Difference, dB
Adjusted TX Headroom, dB
Legacy (SC-QAM) channels
TCS headroom, dB
Combined TCS CMTS RX Power Difference, dB
Adjusted TCS Headroom, dB
Min channel report
P1.6 r_1 dBmV
Min Channel TX Headroom, dB
Worst CMTS RX Power Difference, dB
Worst Channel Adjusted TX Headroom, dB
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