E4404B-042Gray spectrum analyzer backpackE4404B-044Yellow spectrum analyzer backpackE4404B-060Reduced emissionsE4404B-106Bluetooth FM demodulatorE4404B-120Enhanced Wide Offset Phase Noise and ACPR Dynamic RangeE4404B-1AXRS-232 and Centronics interfaceE4404B-1CPRackmount and handle kitE4404B-1D5High stability frequency referenceE4404B-1D6Time-gated spectrum analysis， fixed perpetual licenseE4404B-1D750 -75 ohm minimum loss pad(s)E4404B-1DNTracking generatorE4404B-1DRNarrow resolution bandwidthsE4404B-1DSPreampE4404B-219Noise figure measurement personality and hardware， fixed perpetual licenseE4404B-225Cable fault location measurement personality， fixed perpetual licenseE4404B-226Phase noise measurement personality， fixed perpetual licenseE4404B-227Cable TV measurement personality， fixed perpetual licenseE4404B-228Bluetooth measurement personality， fixed perpetual licenseE4404B-229Modulation analysis measurement personality， fixed perpetual licenseE4404B-230BenchLink web remote control softwareE4404B-231ESA to 89600 series software link updateE4404B-252EDGE upgrade to GSM measurement personality， fixed perpetual licenseE4404B-2668566/8568 programming code compatibility suiteE4404B-290859x programming code compatibiltyE4404B-304Bluetooth premium opt. BundleE4404B-A5D12 Vdc power cableE4404B-A6JANSI Z540-1-1994 CalibrationE4404B-AKTRussia - Russian localization (includes English manual set)E4404B-AMGCalibration + Uncertainties + Guardbanding (Accredited)E4404B-AXTAdd transit caseE4404B-AYQFM demodulation and quasi peak detectorE4404B-AYTGray soft carrying/operating caseE4404B-AYUYellow soft carrying/operating caseE4404B-AYXFast time domain sweep