The Marconi IFR Aeroflex 6203A is a multifunction microwave test set spanning 10 MHz to 26.5 GHz, integrating synthesized sweep generation, scalar analysis, power measurement, and frequency counting into a single portable unit. Designed for component characterization and system calibration in laboratory and field environments, it delivers measurement accuracy across AC and DC detection modes with dynamic ranges reaching 90 dB and power handling to +35 dBm.
Technical Specifications
Frequency Coverage: 10 MHz to 26.5 GHz
Scalar Analyzer:
• Four-input architecture with AC and DC detection
• AC dynamic range: 80–90 dB (-70 dBm to +20 dBm typical)
• DC dynamic range: 70–80 dB (-60 dBm to +20 dBm)
• Selectable measurement points: 2 to 1601
• Sweep time: 40 ms to 500 s
• Calibration types: Through, Short/Open, and Short normalization
Power Meter:
• Measurement range: -70 dBm to +35 dBm (DC to 26.5 GHz)
• Calibration factor and linearity correction applied
• Analog meter for tuning and peaking
• Maximum/minimum hold functions
Frequency Counter:
• Resolution: 1 Hz
• Readout accuracy: ±1 Hz ± frequency standard error
• Swept-mode accuracy: ±100 Hz ± frequency standard error
• Sensitivity: <-20 dBm (10 MHz–10 GHz), <-15 dBm (10–20 GHz), <-10 dBm (20–26.5 GHz)
Signal Purity:
• Harmonics: <-27 dBc (0.01–2 GHz), <-35 dBc (2–8 GHz), <-40 dBc typical (8–26.5 GHz)
• Sub-harmonics and spurious: 17 dB (0.01–0.05 GHz)
Fault Location (Optional):
• Accuracy: 0.1% of range (up to 1 km)
• Resolution: 1.37 cm minimum
• Range: Up to 25 km depending on feeder loss
– Key Features
• MPC 3.5 mm connectors (50 Ω standard); Option 002 adds N-type compatibility
• Path calibration with multiple normalization types
• Residual FM <1 kHz peak (0.01–2 GHz) and <500F Hz peak (2–26.5 GHz, F in GHz)
– Typical Applications
Component and amplifier characterization, antenna measurement, filter and transmission-line analysis, cable and waveguide fault location.















