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E8257D-513 Frequency range from 250 kHz to 13 GHz E8257D-520 Frequency range from 250 kHz to 20 GHz E8257D-521 Ultrahigh output power, frequency range from 10 MHz to 20 GHz E8257D-532 Frequency range from 250 kHz to 31.8 GHz E8257D-540 Frequency range from 250 kHz to 40 GHz E8257D-550 Frequency range from 250 kHz to 50 GHz E8257D-567 Frequency range from 250 kHz to 67 GHz E8257D-007 Analog ramp sweep E8257D-008 8 GB removable flash memory E8257D-UNX Ultra low phase noise E8257D-UNY Enhanced ultra-low phase noise E8257D-HY2 Enhanced ultra-low phase noise level 2 E8257D-UNT AM, FM, phase modulation, and LF output E8257D-UNU Pulse modulation E8257D-UNW Narrow pulse modulation E8257D-1E1 Step attenuator E8257D-1ED Type-N (f) RF output connector (Option 513, 520 and 521 only) E8257D-1EH Improved harmonics below 2 GHz (low-pass filters standard with Op tion 521) E8257D-1EM Moves all front panel connectors to the rear panel E8257D-1EU High output power (standard with Option 521) E8257D-1CN Front handle kit E8257D-1CM Rackmount flange kit E8257D-1CP Rackmount flange and front handle kit E8257D-1SM Scan modulation (Option 513 and 520 only) E8257D-C09 Move all front panel connectors to the rear panel except for the RF output connector E8257D-UK6 Commercial calibration certificate and test data E8257D-A6J ANSI Z540-1-1994 calibration E8257D-1A7 Calibration + uncertainties + guardbanding E8257D-AMG Calibration + uncertainties + guardbanding (accredited) E8257D-CD1 CD-ROM containing the English documentation set E8257D-ABA Printed copy of the English documentation set Customized product solutions E8257D-H1S 1 GHz external frequency reference input and output E8257D-HCC Connections for phase coherency > 250 MHz
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