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Bird 3141 Channel Power Monitor Display- Radio System Monitoring
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3141, Channel Power Monitor Display monitors all aspects of your LMR system. Continuously monitor radio performance, combiner loss and antenna/feedline characteristics to identify and alarm on critical changes. With the data logging function, long term performance monitoring can be used to identify changes before they negatively impact system enabling your preventative maintenance team to address problems before they occur. Solutions are available for the entire range of land mobile radio frequencies from 144 MHz to 940 MHz.

Setup and monitoring is simple with the built-in web server available anywhere there is an internet connection and a web browser, so it is as close as the computer on your desk or your mobile phone using our Android app. Receive SNMP alerts or just check up on your system at your convenience.

  • Data Logging
  • Slim 1RU package
  • Built-in web server provides SNMP messaging
  • Push-to-Talk (PPT) compatibility is standard
  • Full control of alarm and data logging settings
  • Capable of monitoring up to 16 non-directional and 16 directional sensors to cover your large radio system
  • Software and hard contact alarms
  • Directly measure the power output of each RADIO simultaneously. Alarm on failure and record measurements for later analysis

product specifications:

Item No


Item Name

Channel Power Monitor Display

Input Voltage

3141A15: + 15 VDC (supplied by 115/230 VAC Adapter)
3141A48: ± 48 VDC (+48 or -48)

Input Current

3141A15: < 3 Amps
3141A48: < 1 Amp

Fuse Rating

3141A15: 5 Amp
3141A48: 1.25 Amp

Environmental Characteristics

Operating: 0 to +50°C (32 to 122°F)
Storage: -20 to + 80°C (-4 to 176°F)

Humidity: 95% ±5% max. (non-condensing)
Altitude: up to 10,000 feet (3,048 m)


1 RU, 5.25" x 19" x 1.75"
(133.35 x 483 x 44.5 mm)


2 lbs. (0.85 kg), approx.

Standard Accessories

Termination, Label Kit, AC/DC Power Supply (Model 3141A15)