Bird - The RF Experts
4043E Series, Directional Power Sensor Monitors

Directional Ethernet Power Sensor Monitors

A powerful, yet cost-effective monitoring solution for smaller radio networks

Maximize Up-Time

A new and cost-effective approach to antenna and power monitoring for smaller radio communications systems, and paging networks. Designed for smaller sites where the Bird 3141 Channel Power Monitor would be under-utilized, and connecting directly to the Internet or private IP network, they can be accessed remotely for both set-up and monitoring.

Bird’s new Power Sensor Monitors provide reliable remote site monitoring to maximize uptime of mission critical communications. The 4043E power sensors are typically used to measure forward and reflected average power on a 50 ohm RF transmission line with a maximum 500 watt forward and maximum 50 watt reflected power levels in a frequency band with an overall range of 118 to 940 MHz.. This provides an early warning of increased losses in the transmission line resulting from water ingress, damage or deterioration.

Installed post-combiner, the 4043E can generate alarms according to pre-configured parameters for forward power and minimum/maximum VSWR, then communicated to users with SNMP traps. The 4043E provides composite, in-band power monitoring  and is designed to transfer data over an Ethernet connection.

  • Frequency range includes 7 bands between 118 and 960 MHz.
  • Provides composite power monitoring.
  • Internal processing capability eliminates the need for additional monitoring and processing equipment.
Commercial, industrial, and government land-mobile-radio (LMR) wireless-communications systems including:
  • Public Safety
  • Marine/Coast Guard
  • Private Networks
  • Railroad
  • Civil Aviation
4043E Series, Directional Power Sensor Monitors
product specifications:
Item No
Item Name
Directional Power Sensor Monitors - Ethernet
Measurement Type
True Average Forward and Reflected Power VSWR
Frequency Range
4043E-1-420503-yyzz   (118 MHz to 136 MHz)
4043E-1-440503-yyzz   (144 MHz to 174 MHz)
4043E-1-450503-yyzz   (380 MHz to 450 MHz)
4043E-1-460503-yyzz   (450 MHz to 512 MHz)
4043E-1-470503-yyzz   (762 MHz to 806 MHz)
4043E-1-480503-yyzz   (806 MHz to 869 MHz)
4043E-1-490503-yyzz   (896 MHz to 940 MHz)

ww: Max Forward Power Measurement
       05 = 500 W

xx: Comm
       03 = Ethernet

yy: Input Connector
       01 = N (F)
       02 = N (M)
       03 = 4.3/10 (F)
       04 = 4.3/10 (M)

zz: Output Connector
       01 = N (F)
       02 = N (M)
       03 = 4.3/10 (F)
       04 = 4.3/10 (M)
Channel Bandwidth
Power Measurement Range
Forward Power: 25 W to 500 W

Reflected Power: 2.5 W to 50 W
Impedance Ω
50 Ohms, nominal
Loss: 0.2 dB (max)
VSWR: 1.15 (max)
25 dB (min)
Peak-to-Average Ratio
12 dB (max)
Measurement Accuracy
± 5% of reading
Interface: Ethernet 10/100/1000BASE-T (auto-sensing) Version 2.0/IEEE 802.3

RF Connectors
Input: N (M), 4.3/10 (M)
Output: N (F), 4.3/10 (F)
Supported Protocols: TCP/IP Hosted web page, SNMP v2.0 Client
Power Supply: 5.5-40 VDC, 3W max, 0.08 in (2 mm) power jack. 15 VDC adapter included
Operating Position: Any
Push-to-Talk input (PTT) for spurious alarm suppression: NO or NC logic (software selectable)
3.5mm terminal push-lock, optically isolated
Humidity: 95% max, noncondensing
Altitude: 15,000 ft (4,572 m) max

Operating: 0 to 50 °C (32 to 122 °F) | Storage: -40 to 80 °C (-40 to 176 °F)
Size (without connectors): 5.2" x 3.8" x 1.4" (13.2 x 9.7 x 3.6 cm)
Weight: 0.5 lb (0.23 kg)
EN 61010-01 Safety requirements for test and measurement equipment

FCC Part 18 (47 CFR 18) - Industrial, Scientific, and Medical Equipment

EMC EN61326-1 Electromagnetic Compatibility (EMC): Generic standards - immunity standard for industrial environments
compatible devices:
Digital Power Meter Display
Bird RF Meter App
RF Meter App