Industries
Remote Monitoring Systems for Tower & Broadcast Sites
Real-time power, battery and access monitoring for unmanned transmitter sites.
The problem
Tower sites fail quietly. A rectifier drops, a battery starts drawing down, transmit power drifts out of spec — and the first sign is a dropped call or a compliance breach, hours or days after it started.
How Sentor solves it
Sentor monitors forward and reflected power (VSWR), received signal strength (RSSI), battery voltage, rectifier and generator status, HVAC and tower lighting continuously, and alerts the right technician immediately — before a fault becomes an outage. Transmitter channels can also be changed remotely, without a site visit.
What Sentor monitors
Monitored and controlled at a tower or broadcast site
Every point below is read by the same controller, on the same schedule, and appears in the same alarm history — so a power fault and an RF fault arrive through one channel rather than two.
- Forward and reflected transmitter power (VSWR), in watts or dBm, read live each time the transmitter keys up
- Received signal strength (RSSI) of radio transmitters in real time
- Remote channel change on the transmitter, without dispatching a technician
- Battery bank voltage, rectifier status and charge condition
- Generator status, cut-in and fuel level
- Shelter temperature, HVAC operation and door position
- Tower obstruction lighting and beacon failure
- Mains power presence, phase failure and site earth condition
Recommended configuration
- ST3000 Controller (rack or wall)
- ST505 Bi-Directional Power Coupler
- ST30G cellular or ST301 ethernet connectivity
- SitePRO + SentorCloud
Key benefits
- Fewer emergency site visits
- Faster fault isolation
- VSWR trend history for compliance reporting
- One dashboard across a whole tower network