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The DSD404-380 from dbSpectra is a RF Duplexer with Frequency 370 to 410 MHz, Power 150 W, Insertion Loss 0.8 dB, Isolation 80 dB, Loss Tx: 0.8 dB, Rx: 0.8 dB. More details for DSD404-380 can be seen below.
782/751 MHz Ceramic Duplexer
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