AMS power probe for power monitoring add-on FM VHF N female


SPINNER Antenna Monitoring System - protect your broadcast infrastructure

All over the world radio and television broadcasters rely on their transmission systems operating unfailing around the clock, including patch panels, feeder cables and dipoles. The infrastructure itself is generally robust, but in the long run can be damaged and disturbed sustainable through RF overloads, incorrect installation or environmental influences (e.g.: UV radiation, ice, strong wind).

SPINNER's Antenna Monitoring System (AMS) was developed to detect and pinpoint potential malfunction sources, like minimal arcing, compromised insulation or water ingress as early as possible. Thus, the whole broadcast transmission system can be prevented from greater damages, for example degraded RF-components, fire or even a complete off-air situation. All conspicuous events are continuously and reliable recorded in the AMS control unit and can be checked from anywhere via a user-friendly web interface, which also can be used to easily configurate the AMS system setup. A detected failure triggers an alarm both locally on warning LEDs and remotely via a SNMP (Simple Network Management Protocol) interface.

All AMS system components are engineered for indoor installation and can be integrated simple and fast, even in already existing broadcast sites.

The AMS power probe for power monitoring add-on FM VHF N female measures the RMS signal power.

It supports the use of the following frequency bands : Band 1, Band 2, Band 3

The positive characteristics are briefly summarised: For measuring RMS signal power.

Benefits of the AMS

  • Distance-to-fault detection
  • Arcing detection
  • Water ingress detection
  • Continuous monitoring of the whole system
  • Local signaling by LEDs and status relays
  • Remote signaling via SNMP and web interface
  • Protection by integrating transmitter into interlock loop
  • No signal distortion
  • Compact design
  • Fast, easy installation
  • All components indoors
  • No invasive changes to the system
  • Suitable for pressurized lines
  • Works for antennas of any height

RF characteristics

Number of interfaces:
Interface type:
N female (50 Ω) per IEC 61169-16
Waveguide component type:
AMS power probe
Frequency range:
50 to 250 MHz
Frequency band:
Band 3, Band 1, Band 2

Mechanical characteristics

Weight, approx.:
155.0 g
90.0 mm
35.5 mm
26.0 mm

Further remarks

For measuring RMS signal power
Customs tariff number:



Product data sheet – 155891 – CB-L-4-DS.pdf