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Emco 17DB 50 ohm attenuator c connector - big bnc


This is an EMCO A8311S medium power attenuator.
Attenuation 17dB, power not marked - around 5W, frequency range not marked but starting to dip at 1300MHz, connectors C type plug to BNC socket. The C connector looks like an oversized BNC, reasonably unusual.
When tested over the frequency range 0.5 to 1300MHz the attenuation was 17dB +/-1dB



Emco 17DB 50 ohm attenuator c connector - big bnc