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The CHP273-30F-30R from L-3 Narda-ATM is a Dual Directional Coupler with Frequency 1 to 2 GHz, Coupling 30+/-1.00 dB, Coupling Variation +/-1.00 dB, Frequency Sensitivity +/-1 dB, Directivity 23 dB. More details for CHP273-30F-30R can be seen below.
50 dB, 300 W Dual Directional Coupler
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