The Keysight E8257DS08 is a millimeter-wave source module that extends compatible PSG analog signal generators into the mmWave spectrum. Operating from 90 to 140 GHz, this OML AG series module connects directly to an E8257D or E8267D PSG equipped with Option 1EU, inheriting the host generator’s frequency accuracy and resolution while delivering -2 dBm output power at 140 GHz. The module accepts RF input via SMA female connector and provides WR-08 waveguide flange output. It supports FM, PM, and pulse modulation through the driving PSG. Power and control interface via rear panel connection; the host PSG supplies all DC requirements (+8 Vdc at 1.2 A max, +15 Vdc at 150 mA max). Compact form factor: 4.3 in × 2.8 in × 5.7 in (excluding waveguide length), weighing less than 2.0 lb. Specified for indoor operation between +20 to +30 °C. Note: This product is obsolete.
Technical Specifications
• Frequency Range: 90 to 140 GHz
• Output Power: -2 dBm @ 140 GHz
• RF Input: SMA Female connector
• RF Output: WR-08 waveguide flange
• Power Supply: +8 Vdc at 1.2 A max, +15 Vdc at 150 mA max (from host PSG)
• Temperature Range: +20 to +30 °C
• Dimensions: 4.3 in (W) × 2.8 in (H) × 5.7 in (D) excluding waveguide
• Net Weight: < 2.0 lb (907 g)
– Key Features
• Extends PSG frequency coverage into millimeter-wave band
• FM, PM, and pulse modulation support
• Inherits driving PSG's frequency accuracy and resolution
• Direct frequency control via host PSG display
• Interface cable and power supplied from host generator rear panel
– Compatibility & Integration
Required Host Generators: Keysight E8257D PSG or E8267D PSG with Option 1EU. The module provides high-frequency extension without independent power supply—all DC power and control signals derive from the host signal generator.
