The RAMI AV-590 allows two communications radios to share the same antenna.  In the nominal, non-switched mode the AV-590 splits the signal from the antenna evenly between two comm radio receivers.   When the control voltage is activated by the microphone PTT, the AV-590 switches the antenna to the corresponding radio transmitter and isolates the other receiver.

Product Specifications:

• Model    AV-590
• Application    Comm Antenna Splitter
• Frequency    118-136 MHz
• Impedance    50 Ohms Nominal
• VSWR    1.2:1 Max
• DC Voltage    12-15 VDC @ 60 mA Max
• Insertion Loss    < .6 dB above 3.0 dB
• Isolation    >30 dB
• Connector    “BNC” Female
• RF Power Capacity    25 Watts TX
• Color    Black