Operator Protection
Helps verify that the installed repeater system is not generating harmful uplink interference toward nearby operator base stations.
Sentinel
Repeater Uplink Monitoring
GSM | 3G | 4G | 5G
B1 | B3 | B8 | B7 | B20 | B28
UPLINK NOISE MONITORING
Stella Doradus Sentinel
Professional uplink-noise monitoring for installed cellular repeater systems
B28 | B20 | B8 | B3 | B1 | B7
Stella Doradus Sentinel is a professional RF monitoring device designed to continuously supervise uplink noise generated by an installed repeater system and its connected antennas. Its purpose is to help ensure that the building's repeater installation does not create harmful interference toward mobile operator base stations.
Stella Doradus Sentinel combines continuous spectrum monitoring, automatic alerts, spectrum history and remote cell scanning. It is not a cellular repeater itself; it is a complementary monitoring tool used after installation to supervise RF behaviour, uplink noise and network conditions over time.
SYSTEM ROLE
Sentinel Functions in a Professional Repeater Installation
Sentinel is positioned as a post-installation RF supervision device. It monitors the behaviour of the installed repeater system and helps technical teams protect the operator network from excessive uplink noise or abnormal RF activity.
Noise Detection
Continuously monitors uplink spectrum and detects RF noise or abnormal activity above acceptable thresholds.
Network Control
Provides ongoing RF visibility so repeater behaviour and exterior network conditions can be assessed after commissioning.
Multi-Operator Monitoring
Monitors the supported cellular bands used by different mobile operators within the installation's RF environment.
Alerts and Records
Detected anomalies can be logged and used to trigger notifications, giving support teams a recorded view of suspicious spectrum activity.
CONTINUOUS SPECTRUM MONITORING
Live Uplink Spectrum Monitoring on All Six Bands
Stella Doradus Sentinel monitors the uplink spectrum across B28, B20, B8, B3, B1 and B7. In manual mode, a selected band can be viewed live. In automatic mode, the supported bands are monitored continuously.
When the monitoring algorithm detects uplink noise above the defined threshold, the relevant spectrum data can be stored and buffered for later analysis through StellaControl. An anomaly can also trigger an e-mail alert containing a recorded segment of the suspicious spectrum activity.
- Continuous uplink spectrum supervision
- Live spectrum view
- Anomaly logging on StellaControl
- Spectrum-history review
- Automatic alerts for abnormal uplink activity
MONITORING DASHBOARD
RF Status, Spectrum, Location and Network Scan in One View
The Sentinel dashboard brings together spectrum information, device status, location data and network-scan results. This gives installers and technical teams a central operational view of the installed system and the surrounding cellular RF environment.
Historical data can be reviewed alongside current measurements, helping teams determine whether a change is linked to repeater settings, antenna isolation, exterior network conditions or another RF source.
AUTOMATIC NETWORK SCANNING
Monitor the Exterior Cellular Environment
Stella Doradus Sentinel includes an internal modem and embedded SIM for periodic automatic cell scanning. Nearby cells can be reviewed by operator and band together with signal power and quality values, providing additional visibility of the donor-side RF environment.
This allows technical teams to compare repeater behaviour with changes in the exterior network and to confirm whether the incoming cellular environment remains suitable for the installed repeater system.
SHARK + SENTINEL
Before Installation and After Commissioning
SHARK and Sentinel perform different but complementary roles in a professional indoor cellular coverage project.
SHARK — Survey and Planning Stage
SHARK is used before or during installation to analyse the RF environment, support site surveys and help determine donor-signal conditions, antenna positions and repeater-system design.
SENTINEL — Operational Monitoring Stage
Sentinel is used after installation to continuously supervise uplink spectrum, detect abnormal RF noise, record events and help confirm that the installed repeater system remains stable and operator-friendly.
RF SAFETY AND NETWORK PROTECTION
Continuous RF Supervision for Professional Indoor Coverage Systems
Large buildings, hotels, factories, shopping centres and multi-antenna RF-distribution systems require more than indoor coverage alone. Uplink noise, antenna isolation and repeater operating conditions also affect the operator network.
Sentinel helps technical teams detect unexpected uplink activity and above-threshold noise earlier. This makes it
easier to investigate whether a problem is associated with repeater settings, insufficient donor/service antenna
isolation, changing exterior RF conditions or another source within the installation.
RELATED STELLA DORADUS PAGES
RF Survey, Monitoring and Repeater Resources
Manufacturer reference:
Stella Doradus Sentinel