Logic Controlled Antenna/Radio Selector Unit

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The 21-80-127 Logic Controlled Antenna/Radio Selector Unit is intended for use in radio systems requiring the connection of up to two antennas and up to two radios with the ability to configure the radios and antennas interchangeably. The unit is constructed from aluminium alloy as a box and a lid. The box part is flanged with mounting holes for attachment to the airframe.

	21-80-127
Model #	21-80-127
Brand	Cooper Antennas

Frequency	30 to 512 MHz
VSWR	≤ 1.25:1
Impedance (nominal)	50 Ohms
Power	20 Watts CW
Insertion Loss	≤ 0.5 dB
Isolation	≥ 30 dB
RF Power	75 Watts average power; 200 watts peak power
Operating Voltage	28 VDC
Operating Current	Shall not exceed 250 milliamps
Identity	Pin 9 of J5 will connect to an internal 1.43 kΩ resistor connected to ground to provide the identity of the unit.
Switching speed	≤ 5 msec
RF Connectors	4 x TNC Female
Test Point	SMA
DC Connector	MS27513E10B35P