CGNDP4
Ultra-High Split D4.0 Meter
User Guide
VERSION 1.0 - JUL. 2026
CGNDP4 User Guide
Copyright © 2026 Hitron Technologies Inc. All rights reserved
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Contents
1 Introduction .......................................................................................................... 3
2 Product Overview ................................................................................................. 8
2.1 Product Specs .................................................................................................... 8
2.2 Hardware Connections and LEDs .................................................................. 8
3 Connecting to the CGNDP4 ............................................................................... 9
4 Features Overview ............................................................................................. 14
5 Statements and Warnings .............................................................................. 18
Copyright © 2026 Hitron Technologies Inc. All rights reserved
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Introduction
1 Introduction
Introduction
The CGNDP4 is a portable, weather-resistant DOCSIS meter designed for field diagnostics. Used
together with the Hitron ProMeter mobile application, it enables technicians to perform signal
measurements, device diagnostics, and network troubleshooting at the customer premises, outside
plant, and headend.
The CGNDP4 supports low-, mid-, and high-split upstream architectures and provides the diagnostic
capabilities required for efficient installation, maintenance, and service verification.
CGNDP4 User Guide
Copyright © 2026 Hitron Technologies Inc. All rights reserved
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Installation
2 Product Overview
2.1 Product Specs
2.2 Hardware Connections and LEDs
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3 Connecting to the CGNDP4
This section explains how you can use your smart device to connect the CGNDP4.
1. RF Coaxial Cable Connection:
1.1 Connect the RF coaxial cable from the CMTS to the RF1 connector on the CGNDP4 for
DOCSIS signal measurements. Refer to Figure 6.
1.2 Connect the RF coaxial cable installed inside the house to the RF2 connector on
the CGNDP4 to identify the source of ingress noise. Refer to Figure 7.
Figure 6 Figure 7
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2. Insert the battery into the meter.
3. Connect the supplied 12 V / 5 A power adapter to charge the battery.
4. Press the Power button located on the bottom of the CGNDP4 to turn on the device.
§ Note §
If the power button doesn’t work, please press H-Reset button to force power off the CGNDP4.
5. Enable Wi-Fi on your smartphone. Make sure Wi-Fi is turned on.
6. On the home screen, tap the Hitron ProMeter icon to launch the application.
When you launch the application for the first time, you may be prompted to grant permission to access
photos, media, files, and your device's location.
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7. The app will check whether the meter is connected. Click "Got It!" to continue.
8. If the meter is not connected, the app will automatically scan for available Wi-Fi networks. Select
the CGNDP4 you want to connect to.
9.
Enter the password to connect. (Default password: defaultkey)
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10.
Once connected, the Wi-Fi connection icon will display the selected CGNDP4. You can
now use all the features of the CGNDP4.
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The Pro Meter Main Screen provides quick access to all the main features
of the Pro Meter.
4 Features Overview
CGNDP4 User Guide
Copyright © 2026 Hitron Technologies Inc. All rights reserved
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Icon/Name
Description
Spectrum:
Provide a graph in which RF signal strength
is
plotted on the y-axis and frequency is plotted on the x-axis,
the frequency range is defined by downstream signal.
DOCSIS: Displays information about the connected
DOCSIS upstream and downstream channels.
FIux: The CGNDP4 implements DOCSIS pre-equalization
technology to help troubleshoot network issues. It
enables technicians to identify plant impairments and
pinpoint their locations within a few feet.
QAM Analysis: Displays real-time QAM constellation
and spectrum information for DOCSIS signal analysis.
OFDM: Displays detailed OFDM spectrum and channel
information, including signal parameters and channel
status.
Ingress: Displays a graph with signal strength on the y-
axis and frequency on the x-axis over the upstream
frequency range.
CGNDP4 User Guide
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Pressure Tester: Monitors cable pressure for leak
detection and system maintenance.
Speed Test: Use the Speed Test tool to measure
network download and upload performance.
Ping:
Use this tool to send ICMP echo requests to verify
network connectivity and diagnose network communication
issues.
Traceroute: Use the Traceroute tool to trace the
network path to a destination.
Noise: Displays the current upstream noise spectrum
and heatmap to assist in identifying RF noise and
interference.
DS Alignment: Provides downstream signal
measurements for alignment and verification.
US Alignment: Provides upstream signal measurements
for alignment and verification.
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US Signal Generator: Use the US Signal Generator tool
to generate upstream test signals.
Drop Validation: Validates the RF drop connection and
signal quality.
Loss Calculator: Calculates cable loss based on the
selected cable type and length.
CGNDP4 User Guide
Copyright © 2026 Hitron Technologies Inc. All rights reserved
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5 Statements and Warnings
Federal Communication Commission Interference Statement
This equipment has been tested and found to comply with the limits for a Class B digital device,
pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection
against harmful interference in a residential installation. This equipment generates, uses and can
radiate radio frequency energy and, if not installed and used in accordance with the instructions, may
cause harmful interference to radio communications. However, there is no guarantee that
interference will not occur in a particular installation. If this equipment does cause harmful
interference to radio or television reception, which can be determined by turning the equipment off
and on, the user is encouraged to try to correct the interference by one of the following measures:
⚫ Reorient or relocate the receiving antenna.
⚫ Increase the separation between the equipment and receiver.
⚫ Connect the equipment into an outlet on a circuit different from that to which the receiver is
connected.
⚫ Consult the dealer or an experienced radio/TV technician for help.
FCC Caution: Any changes or modifications not expressly approved by the party responsible for
compliance could void the user’s authority to operate this equipment.
This device complies with Part 15 of the FCC Rules. Operation is subject to the following two
conditions: (1) This device may not cause harmful interference, and (2) this device must accept any
interference received, including interference that may cause undesired operation.
This device is restricted for indoor use.
IMPORTANT NOTE:
FCC Radiation Exposure Statement:
This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment.
This equipment should be installed and operated with minimum distance 20 cm between the radiator
& your body.
CGNDP4 User Guide
Copyright © 2026 Hitron Technologies Inc. All rights reserved
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Industry Canada(IC) Statement
This device contains licence-exempt transmitter(s)/receiver(s) that comply with Innovation, Science
and Economic Development Canada’s licence-exempt RSS(s). Operation is subject to the following two
conditions:
(1) This device may not cause interference.
(2) This device must accept any interference, including interference that may cause undesired
operation of the device.
Cet appareil contient des émetteurs / récepteurs exempts de licence qui sont conformes au (x) RSS (s)
exemptés de licence d'Innovation, Sciences et Développement économique Canada. L'opération est
soumise aux deux conditions suivantes:
(1) Cet appareil ne doit pas provoquer d'interférences.
(2) Cet appareil doit accepter toute interférence, y compris les interférences susceptibles de
provoquer un fonctionnement indésirable de l'appareil.
The device for operation in the band 5150–5250 MHz is only for indoor use to reduce the potential for
harmful interference to co-channel mobile satellite systems.
les dispositifs fonctionnant dans la bande 5150-5250 MHz sont réservés uniquement pour une
utilisation à l’intérieur afin de réduire les risques de brouillage préjudiciable aux systèmes de satellites
mobiles utilisant les mêmes canaux.
IMPORTANT NOTE:
IC Radiation Exposure Statement:
This equipment complies with IC RSS-102 radiation exposure limits set forth for an uncontrolled
environment. This equipment should be installed and operated with minimum distance 20 cm
between the radiator & your body.
Cet équipement est conforme aux limites d'exposition aux rayonnements IC établies pour un
environnement non contrôlé. Cet équipement doit être installé et utilisé avec un minimum de 20 cm
de distance entre la source de rayonnement et votre corps.
