The JDS Uniphase HA9W Programmable Attenuator is a highresolution, extended-range, programmable attenuator ideal for testing power meters and for general test and laboratory work. The attenuator has a nominal resolution of 0.01 dB. The operating wavelength 750-1700 nm is available to use with a reduced attenuation range of 60 dB for the HA9W attenuator.