Tektronix MDO4104B-6 Mixed Domain Oscilloscope 1GHz 4-Ch, 6GHz RF, 16-Ch Logic 137173341200 but it does not calibrate

but it does not calibrate

Manufacturer Astera Model Number AX3-CRMX-U SKU 19-69662 Ref 23-99581

Manufacturer Cisco Model Number OC192LR STM64LH SKU 19-46661 Ref 23-67295

Manufacturer Lutron Part Number 4004623 REV A Model Number RRST-RS-LA UPC 784276808729 SKU 19-85133 Ref 23-123477

The Receiver has wear from previous use including scuffs and scratches

Tektronix MDO4104B-6 Mixed Domain Oscilloscope 1GHz 4-Ch, 6GHz RF, 16-Ch Logic 137173341200 but it does not calibrateThis item is sold AS IS. No returns or exchanges are accepted. Condition For parts or not working Description Has options: DPO4LMT Limit Mask MDO4TRIG Adv. RF Trig. Tested, partially working. Unit does not pass SPC, but it passes self tests. All 4 scope channels work as intended as well as the RF input works as intended. The 7th softkey below the screen does not work most of the time, but when you press it, the scope thinks the 6th button was pressed.