开云体育

hello all I have a hp8970A meter that has been turned off for a long time. I turned it back on and I know that the internal attenuator needs to be recalibrated with the special command function SP 33.0. I re-entered the ENR table of the head but I don't remember if the temperature also needs to be entered or not just for the recalibration of the attenuator does anyone remember? thank iw5bsf Roberto