Keysight (Agilent) E8257DS15 Millimeter-Wave Source Module, 50 to 75 GHz

The Keysight E8257DS15 is a millimeter-wave source module that extends Keysight E8257D or E8267D PSG (Personal Signal Generator) platforms into the 50 to 75 GHz band. Manufactured by OML, Inc., this module delivers +8 dBm output power at 75 GHz and interfaces directly with compatible signal generators via a Source Module Interface (SMI) connector, drawing DC power and receiving modulation control signals from the host PSG. The module outputs via WR-15 flange and accepts RF input through an SMA female connector. It supports FM, PM, and pulse modulation capabilities controlled through the driving PSG. The E8257DS15 is a compact desktop unit measuring 4.3 in × 5.7 in × 2.8 in (height) and weighing less than 2.0 lb. Power requirements of +8 Vdc at 1.2 A maximum and +15 Vdc at 150 mA maximum are supplied by the host PSG. Integrated input power protection guards against over- or under-power conditions. The module requires a 45-minute warm-up period and operates over +20 to +30 °C for specification compliance, with driving PSG performance warranted across 0 to 55 °C. Adequate earth grounding via the supplied SMI DC bias cord and unrestricted cabinet ventilation are required for safe operation. Included accessories comprise a 2 m DC power cable (V00DCDC2) and 1 m RF SMA-to-SMA cable (V00LOIF). The product is obsolete with no replacement identified.