Know your power’s where it should be — before the listener does.
Forward and reflected power, VSWR, PA and air temperatures, fan speeds, exciter lock and modulation — pulled straight off the rig over SNMP with a purpose-built driver for each make. BNM turns the transmitter’s own telemetry into plain status, trends it, and puts a phone call on the line the moment it steps out of range.
IP: 10.20.14.91:161
Ping: 0ms
| 2026-09-13 23:44 | Modulation low on WPKR Main Transmitter: 0% (confirmed over 3 polls)back to 2026-05-30 | lasted 5m | |
2026-09-13 23:44→2026-09-13 23:495mvalue 0% 2026-09-09 17:28→2026-09-09 17:2817svalue 0% 2026-09-09 17:13→2026-09-09 17:185mvalue 0% 2026-09-04 06:15→2026-09-04 06:2510mvalue 0% 2026-08-28 08:53→2026-08-28 08:585mvalue 0% 2026-08-07 17:02→2026-08-07 17:075mvalue 0% 2026-08-05 17:03→2026-08-05 17:1310mvalue 0% 2026-08-03 12:20→2026-08-03 12:205svalue 0% 2026-08-03 12:20→2026-08-03 12:206svalue 0% 2026-08-03 12:20→2026-08-03 12:205svalue 0% 2026-08-03 12:19→2026-08-03 12:207svalue 0% 2026-08-03 12:19→2026-08-03 12:195svalue 0% 2026-08-03 12:19→2026-08-03 12:195svalue 0% 2026-08-03 12:19→2026-08-03 12:196svalue 0% 2026-08-03 12:19→2026-08-03 12:196svalue 0% 2026-08-03 12:19→2026-08-03 12:196svalue 0% 2026-08-03 12:19→2026-08-03 12:197svalue 0% 2026-07-14 18:57→2026-07-14 22:543.9hvalue 0% 2026-05-30 08:48→2026-05-30 09:0921mvalue 0% 2026-05-30 08:26→2026-05-30 08:4822mvalue 0% | |||
| 2026-08-24 19:24 | Power low on WPKR Main Transmitter: 1 W | lasted 5m | |
| 2026-08-24 19:24 | RF OFF on WPKR Main Transmitter | lasted 5m | |
| 2026-05-28 16:04 | Modulation low on WPKR Main Transmitter: 0% | lasted 10m | |
| 2026-05-24 17:58 | Modulation low on WPKR Main Transmitter: 6.7% | lasted 5m | |
Reflected power and heat creep up before they take you down.
A transmitter rarely dies all at once. VSWR drifts, a blower weakens, the PA runs hot and folds back power — and you lose coverage long before anything trips an alarm at the site. BNM trends those numbers so you see the slope, not just the crash.
When something does cross the line — RF off, interlock open, VSWR high, audio loss — it doesn’t wait for a morning check. It calls.
IP: 10.20.14.31:161
Ping: 0ms
Recorded telemetry from a live GatesAir Flexiva HP — forward and reflected power, modulation, PA temperature and ping, with the real PA module temperatures, power-block readings and fault states. Station, IP and site renamed to a demo tenant. Not a live feed.
The telemetry that defines on-air.
Every value below is read directly from the transmitter’s SNMP agent by a model-specific driver — then trended, so you watch the trend, not just the trip.
RF & power
Forward and reflected power against the licensed target, VSWR, and the RF on/off state — the difference between “on” and “on-air.”
Modulation & audio
Total and peak modulation, MPX/pilot where the rig exposes it, and per-exciter audio L/R peak on Nautel — so a silent or over-modulated carrier shows up here, not on a listener line.
PA & supply
PA current per branch, DC/PA voltage, efficiency, PA dissipation and RF drive — the early tells of a folding-back or failing power amp.
Thermal, air & cooling
PA and heatsink temps, chassis front / rear / average air temperature, intake (ambient) air temp, and on liquid-cooled rigs coolant temperature and flow — plus every fan RPM and airflow %, so a weak blower or a hot room is obvious before foldback.
Exciter & redundancy
Active exciter (A/B), per-exciter forward power, VSWR, PA temp and fan, and exciter changeover — you see which exciter is on air and why it switched.
Mains & interlocks
AC/mains and power-supply status and the external interlock line — the safety and power conditions that take a transmitter off the air in an instant.
Every condition BNM will raise on a transmitter.
Each driver ships a real alarm table, not a generic SNMP trap dump. You pick which ones matter and where they go — critical can ring a phone, warning can email or text. See how alerting routes them →
- Transmitter unreachable
- RF off / carrier down
- VSWR high — antenna or line fault
- External interlock open
- Fan / cooling fault
- Power-supply fault
- Transmitter, system or PA hard fault
- Forward power low
- Forward power high
- Reflected power high
- PA temperature high
- Heatsink temperature high
- Chassis air temp high (front / rear / average)
- Transmitter / ambient air temp high
- Modulation loss
- PA pallet or module failure
- Drive-chain fault
- Output fault
- Active-fault flag set
Exact set varies by model — a Harris liquid-cooled rig adds coolant-flow and power-supply faults; a Nautel NVLT adds external interlock and modulation-loss; the GatesAir Flexiva HP adds per-pallet failure and chassis-air alarms. BNM only arms the alarms the connected rig actually reports.
See your power on one screen, across every site.
We’ll point a demo at your rigs, trend the key numbers — power, VSWR, PA and air temps — and wire a test dial-out so an RF-off or interlock reaches your phone, not your voicemail.