The Marconi IFR Aeroflex 3281 is a 3.00 GHz spectrum analyzer engineered for precise spectral analysis across telecommunications, wireless infrastructure, aerospace, and defense applications. It delivers detailed measurement of power, frequency, bandwidth, and modulation parameters essential for signal integrity verification and compliance testing.
Technical Specifications
Frequency Coverage
• Frequency span: 10 Hz to 3.00 GHz (user-selectable)
• Resolution bandwidth: 10 Hz to 3 MHz (1-3-10 sequence)
• Video bandwidth: 1 Hz to 3 MHz (1-3-10 sequence)
Amplitude Measurement
• Dynamic range: -150 dBm to +30 dBm (typical)
• Amplitude accuracy: ±1 dB over specified conditions
• Displayed average noise level: -150 dBm/Hz (typical, pre-amplifier enabled at 1 GHz)
Signal Analysis
• AM/FM demodulation for signal monitoring
• Multiple marker types for frequency and amplitude identification
• Trace modes: Normal, Average, Max Hold, Min Hold with storage capability
• Automatic sweep time adjustment with manual override
– Key Features
Flexible span selection enables analysis of narrow signals or broad spectral regions. User-configurable resolution and video bandwidths differentiate closely spaced signals while managing noise. Multiple trace memories support signal comparison and pattern recognition. Marker functions provide precise frequency and amplitude identification across the measurement range.
– Typical Applications
Signal characterization and compliance verification in wireless system development. Power and frequency measurements during transmitter and receiver testing. Spectral purity assessment and interference identification in communications infrastructure. Modulation analysis for protocol validation and signal quality assurance.
– Compatibility & Integration
RF input connector accommodates standard test cables and signal sources. Optional pre-selector and tracking generator (if equipped) enable swept frequency response measurements for component and system characterization.
