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The CHP275-40F-40R from L-3 Narda-ATM is a Dual Directional Coupler with Frequency 4 to 8 GHz, Coupling 40+/-1.00 dB, Coupling Variation +/-1.00 dB, Frequency Sensitivity +/-1 dB, Directivity 21 dB. More details for CHP275-40F-40R can be seen below.
50 dB, 300 W Dual Directional Coupler
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