The BW179 from Sainty-Tech Communications Limited is a RF Variable Attenuator with Frequency 0.1 to 8 GHz, Attenuation Range 0.5 to 31.5 dB, Attenuation Accuracy 0.5 to 1 dB, Power 0.25 W, P1dB 20 dBm. Tags: Die, Digital. More details for BW179 can be seen below.