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Herley's Solid State Receiver Protectors are a direct replacement for traditional T/R tubes and deliver MTBF figures magnitudes higher. Our superior design is also capable of handling up to 10 KW of power. Plus, you can choose from any combination of passive limiting protection, sensitivity time control attenuation, gated transmitter pulse attenuation, built in test signals and detector monitoring. Additional features include exceptionally low insertion loss and typical VSWR of less than 1.5:1. Herley will offer the solution that best meets your needs.

MD-202X003 Solid State Receiver Protector
The MD-202X003 is a multifunction high power all solid state receiver protector in WR90 waveguide. It combines passive limiting protection, controlled sensitivity time control (STC) attenuation, gated transmitter pulse attenuation (bang snuff), a built-in-test signal injection port, and a detector monitor output of the high power limiter section (pre STC).

Electrical Performance Frequency Range Radar Band: 9.700-9.900 GHz Beacon High Power Frequency: 9.375 GHz Beacon Low Power Frequency: 9.310 GHz Pulse Width and Pulse Repetition Rate Test A (Radar) PW:1.0 µS, PRR: 10.0 KHz, Duty: 0.010 Test B (Radar) PW: 8.0 µS, PRR: 1.0 KHz, Duty: 0.008 Test C (Beacon) PW: 4.0 µS, PRR: 1.0 KHz, Duty: 0.004 Peak Power-Mode Radar and Beacon Operate: 0 to 180 Watts Radar and Beacon Overload (Leakage Protection Only): 2000 Watts Insertion Loss Radar Band: 1.0 dB Maximum Beacon Band: 1.3 dB Maximum Insertion Loss Frequency Flatness Any 50 MHz interval of Radar Band: 0.3 dB Maximum VSWR Radar Band-Input and Output: 1.5:1 Maximum Beacon Frequency: 2.0:1 Maximum STC Attenuation Range (0-80 mA) Radar Band: 60 dB Minimum Beacon Frequency: 45 dB Minimum STC Attenuation Flatness-Radar Band 0 to 5 dB: ± 1.0 dB Maximum 6 to 20 dB: ± 1.5 dB Maximum 21 to 40 dB: ± 2.0 dB Maximum 41 to 50 dB: ± 2.5 dB Maximum 51 to 60 dB: ± 3.0 dB Maximum Beacon Frequency STC Attenuation vs. Radar Band STC Attenuation Set 10 dB at 9.800 GHz, Beacon Range: 7-13 dB Set 40 dB at 9.800 GHz, Beacon Range: 25-45 dB STC Attenuation Slope 12 dB/mA Maximum Gated STC Switching On Time Radar Band From 1 dB to 40 dB: 50 nS Maximum BIT Coupler (J2 to Waveguide Output) 33 ± 1.5 dB Spike Leakage Peak Power (Gated STC, 80 mA Bias) Test A Overload Power: 100 mW Maximum Test B Overload Power: 100 mW Maximum Test C Overload Power: 150 mW Maximum Spike Leakage Peak Power (No Gated STC, 0 mA Bias) Test A Operate Power: 100 mW Maximum Test B Operate Power: 100 mW Maximum Flat Leakage Peak Power (Gated STC, 80 mA Bias) Test A Overload Power: 50 mW Maximum Test B Overload Powe:r 50 mW Maximum Test C Overload Power: 75 mW Maximum Flat Leakage Peak Power (No Gated STC, 0 mA Bias) Test A Operate Power: 50 mW Maximum Test B Operate Power: 50 mW Maximum Recovery Time Test A Operate Power 3 dB Point: 400 nSec Maximum 1 dB Point: 550 nSec Maximum Test B Operate Power 3 dB Point: 2000 nSec Maximum 1 dB Point: 6000 nSec Maximum Reliability This Solid State Receiver Protector has an MTBF of not less than 20,000 hours.