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Microwave Video Links | GPS Applications | Video Engineering | Custom Electronic Design

 
 
analogue Links:
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Omni Antenna Receiving Station
Solid State Multi-channel RF switches
 
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COFDM Digital Video Theory
 
Service and Repair
System Design
 

Solid State Multi-channel RF switches

Two RF low level multi-pole switches, designed for smart antenna feeder selection.
Operating in the L, S and C bands up to 4GHz, these switches contain all the interfacing circuitry to simplify connecting to digital processing systems. Individual low noise buffer amplifiers provide for switch insertion loss and cable driving. Fitted with SMA RF input and output connectors with single 9 way D interface. LED channel selected indicators. Opto coupled Binary select digital interface from RS-232 buffered source drivers ensures high
reliability over extended length interconnection feeds.


  Single pole 8 way switch Single pole 13 way switch
Frequency range 1.0GHz – 3.0GHz 1.0GHz – 4.0GHz
LNA Gain approx 10 dB approx 14dB
Switching time < 1μs < 1μs
Input/Output impedance 50Ω 50Ω
Control input 3 bit binary (via 9 way D plug) 4 bit binary (via 9 way D plug)
LED Channel indicator Yes Yes
Power 12 volts dc (isolated) ~ 200mA 12 volts dc (isolated) ~ 350mA
Overall size 120mm Ø x 30mm (approx) 150mm Ø x 42mm (approx)
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