HP E4404B 9kHz 6.7 GHz ESA-E Series Spectrum Analyzer 1DN TG, 1DS, 1DR, 1D5, 1D6 153975946850 Manufacturer Niles Model Number SVL-4

Manufacturer Niles Model Number SVL-4 SKU 19-22481 Ref 23-91397

Manufacturer ERO Fuhrungen Model Number VSLS50 X SKU 19-41685 Ref 23-55617

Manufacturer Hughes Model Number 1177H13F000 SKU 19-27667 Ref 23-76943

Manufacturer Black Box Model Number ME270A-R2 SKU 19-44402 Ref 23-60999

The select button works

HP E4404B 9kHz 6.7 GHz ESA-E Series Spectrum Analyzer 1DN TG, 1DS, 1DR, 1D5, 1D6 153975946850 Manufacturer Niles Model Number SVL-4Condition Used Description Key Features & Installed Options: 1DS RF Preamplifier 1DR Narrow Resolution Bandwidth (RBW) 1D6 Time Gated Spectrum Analysis B72 Expansion Memory 1DN 3. 0 GHz Tracking Generator, 50 Ohm 1D5 High Stability Frequency Reference BAC cdmaOne Measurement Personality (A. 02. 03) 229 Modulation Analysis Personality (A. 02. 01) Installed Hardware Slots: Slot 4 B7D: DSP with Fast ADC Slot 5 B7E: RF Communications Hardware Slot 6