The Marconi IFR Aeroflex 2026Q is a dual-channel RF signal generator and CDMA interferer designed for receiver sensitivity testing, interference simulation, and multi-signal source applications. Operating from 10 kHz to 2.4 GHz on individual outputs, the instrument combines two fully independent RF generators with optional third-source and GSM modulation capabilities. Its combiner output extends from 800 MHz to 2.0 GHz, enabling complex multi-signal test scenarios across CDMA, PCS, and AMPS systems in conformance with IS-97-A and IS-98-A standards.
Technical Specifications
Frequency Range
• Individual RF outputs: 10 kHz to 2.4 GHz
• Combiner output: 800 MHz to 2.0 GHz
• Frequency resolution: 1 Hz
Output Power
• Individual outputs: −137 dBm to +24 dBm
• Combiner outputs: −137 dBm to +4 dBm (settable to +10 dBm or −137 dBm to −13 dBm)
• Amplitude resolution: 0.1 dB
• Maximum output reduction: 5 dB with pulse modulation; up to 6 dB additional reduction with AM modulation
Signal Quality
• Phase noise: Better than −124 dBc/Hz at 20 kHz offset (470 MHz carrier); typically −121 dBc/Hz at 20 kHz offset (1 GHz carrier)
• Harmonics: Typically better than −30 dBc (individual outputs up to +6 dBm); typically better than −30 dBc (combiner outputs up to −36 dBm)
• Output isolation: Better than 80 dB between individual outputs; better than 60 dB between individual and combiner outputs
• Low internally generated intermodulation products
Modulation Modes
• AM, FM, Phase (ΦM), Pulse, 2/4 Level FSK
• Two-tone modulation sources: Sine, triangular, square
– Key Features
• Two independent, fully featured RF signal generators
• Optional third source and GSM modulation capability (Option 116)
• Two-tone interference generation for AMPS/CDMA receiver testing
• Reverse power protection on individual outputs (up to 50 W from 50 Ω; 25 W from 5:1 VSWR source)
• Front panel and remote reset of protection circuit
– Interfaces & Control
• GPIB and RS-232 connectivity
• 50 Ω type N connectors (MIL-PRF-39102)
– Typical Applications
Receiver sensitivity and performance evaluation; multi-signal interference simulation; CDMA and PCS system testing; manufacturing validation and field service diagnostics.
