The HP/Agilent 8447D is a solid-state pre-amplifier that increases receiver sensitivity and signal generator output power across a broad frequency spectrum. Operating from 100 kHz to 1.3 GHz with greater than 25 dB typical gain, the 8447D delivers consistent amplification with minimal noise figure ( 25 dB typical (26 dB @ 20–30°C); ±1.5 dB flatness across full band
**Noise Figure:** +7 dBm at 1 dB gain compression
**Output Impedance:** 50 Ω
**Input/Output VSWR:** 40 dB
**Harmonic Distortion:** ≤ -25 dBc (ALC off); ≤ -20 dBc typical (ALC on)
**Connectors:** BNC standard; Type-N optional (Option 010)
**Power Supply:** 110–230 Vac ±10%, 48–440 Hz, 15 W consumption
**Operating Temperature:** 0 to +55°C
**Physical Dimensions:** 130 × 85.8 × 216 mm (5.1 × 3.4 × 8.5 in); 1.56 kg net
## Key Features
• Hermetically sealed solid-state construction with thin film hybrid and integrated circuit amplifiers
• Exceptional gain flatness with ±0.7 dB variation over 20–30°C operating window
• Low noise performance suitable for sensitive receiver applications
• High reverse isolation prevents source loading and feedback
## Typical Applications
• RF signal sensitivity enhancement for spectrum analyzers, power meters, and EMI instruments
• Counter and RF voltmeter input conditioning
• Signal generator and sweep generator output boosting
## Compatibility & Integration
Single and dual-channel configurations available. Dual-channel Option 001 (BNC) and Option 011 (Type-N) support parallel amplification for multi-channel test setups.
