The JDS Uniphase HA9P 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 and an extended attenuation range of 100 dB. The standard operating wavelength is 980-1100 nm (750-1700 nm is available to use with a reduced attenuation range of 60 dB for the HA9W attenuator).