The Keysight/Agilent/HP 8447F H64 is a dual-channel preamplifier system designed for RF and microwave signal enhancement in benchtop measurement applications. This wideband amplifier combines two independent preamplifiers with Type-N connectors to deliver gain up to 47 dB when cascaded, making it ideal for improving measurement sensitivity and boosting signal levels across a broad frequency spectrum.
## Technical Specifications
The 8447F H64 encompasses two distinct preamplifier stages optimized for different frequency bands. Preamplifier 1 covers 9 kHz to 50 MHz with 26 dB minimum gain and ±2 dB gain flatness. Preamplifier 2 extends coverage to 0.01 to 1300 MHz with 25 dB minimum gain and ±1.5 dB flatness. Overall system impedance is 50 Ohms with ±1.5 dB gain flatness across the full operating range.
Noise figure performance remains consistent below 8.5 dB across all frequency bands from 9 kHz through 1300 MHz. Output power at 1 dB gain compression exceeds +7 dBm from 0.1 to 1300 MHz, with typical performance reaching +15 dBm from 0.1 to 1000 MHz. Harmonic distortion maintains <-60 dB performance at specified output levels.
Input and output VSWR performance varies by band: 9 kHz to 50 MHz exhibits <2.0:1 input and <2.2:1 output impedance; 1 MHz to 1300 MHz maintains <2.0:1 input and <2.2:1 output. Reverse isolation exceeds 40 dB. Maximum DC input voltage is +10 V.
Risetime is 400 ps (Preamplifier 1) and 420 ps (Preamplifier 2). Group delay variation over any 50 MHz band from 0.1–1300 MHz measures typically <0.15 ns to 40 dB protects connected equipment
## Typical Applications
• Counter and spectrum analyzer sensitivity enhancement
• Signal source output power amplification
• Wideband RF measurement and characterization
• Preamplification for low-level signal detection
## Compatibility & Integration
The 8447F H64 integrates with RF measurement systems requiring dual-channel gain flexibility across the VLF through microwave bands. Compatible with 50-ohm test equipment and measurement instruments.
