HP Agilent 44472A VHF MultiPlexer, DC - 300 MHz

HP/Agilent 44472A Dual 1x4 VHF Multiplexer DC to 300MHz
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The Agilent 44472A VHF module offers broadband switching capability for high-frequency and pulse signals. Two independent 50 ohms character impedance bi-directional 1x4 switches are provided for signals from DC to 300 MHz. Very low crosstalk makes the VHF module ideal for VHF signal measurements using spectrum, network, or distortion analyzers. You can also use the excellent signal integrity of the VHF module for multiplexing inputs to your GPIB oscilloscope or waveform analyzer. Each group of four channels is isolated from the other as well as from the chassis to prevent ground loops. BNC connectors provide ease of connection to the module.



  • Dual independent 4-to-1 coaxial multiplexers
  • Switch dc up to 300MHz
  • Internal 50Ω termination
  • BNC terminal connectors



Maximum Voltage
(center-center, center-low):
250V DC, 30V AC RMS or 42V AC peak;
Low-chassis or low-low): 42V DC
Maximum Current (per chan.) 30mA DC,300mA AC RMS
30mA DC,300mA AC RMS <15uV
Characteristic Impedance: 50 ohms
Initial Closed Channel Resistance: <1 ohms
DC isolation (<40°C, 95% RH): >107 ohms
AC Isolation/Performance
  30MHz 100MHz 300MHz
Insertion loss <0.5 <0.75 <1.25
Crosstalk (dB) Within a Group <-100 <-85 <-85
Group-Group <-85 <-65 <-50
VSWR <1.06 <1.12 <1.43
Capacitance: center-center, center-common <0.002pF
Center-low <70pF
Low-chassis <0.20uF
Rise Time: <0.7 nsec
Signal Delay: <2.5 nsec (channel match <90psec)