Bird - The RF Experts
4044

Non-Directional RF Power Sensors


Measures output power of either analog or digitally modulated radios up to 125 watts


4044 Series Non-Directional Power Sensors are designed to be used for continuous power monitoring in multiple Land Mobile Radio (LMR) systems when used with the Bird 3141 Channel Power Monitor (CPM). The 4044 sensor is typically used to measure forward average power on a 50 ohm RF transmission line with a maximum 125 watt forward power level in a frequency band with an overall range of 144 to 960 MHz.

Product Features
  • Economical and capable of measuring the output power of either analog or digitally modulated radios up to 125 watts.
  • Accurate to within +/-5% of reading with traceability to NIST.
  • Non-directional and ideal for use at the input to each channel of the transmit combiner where the VSWR is well controlled.
product specifications:
Item No
4044
Item Name
Non-Directional RF Power Sensor
Frequency Range
4044-1-440404-yyzz   (144 MHz to 174 MHz)
4044-1-450404-yyzz   (380 MHz to 450 MHz)
4044-1-460404-yyzz   (450 MHz to 512 MHz)
4044-1-470404-yyzz   (762 MHz to 806 MHz)
4044-1-480404-yyzz   (806 MHz to 869 MHz)
4044-1-490404-yyzz   (896 MHz to 940 MHz)
(See connection options below to build part number. Custom band options available)
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)
Max Reflected Power Measurement
2.5 - 125W
Impedance Ω
50
Accuracy
+/- 5% of reading
Insertion
Loss:< 0.1 dB
VSWR: <1.10:1 (max)
Intermodulation Distortion - PIM
<-140 dBc
Power Supply
15 VDC, 5 mA, max (from 3141)
Interface
0-4 VDC via RJ-25 Connector
Temperature
0 to 50°C
Size
2.3" x 2.2" x 1.7" (50 x 56 x 43 mm)
Weight
0.2 lbs (0.1 kg)
Compliance
CE, RoHS
Standard Accessories
10' RJ-25 Interface Cable
compatible devices:
3141
Channel Power Monitor Display