The Marconi IFR Aeroflex 2935 is a quad-band GSM test set engineered for functional and radio measurement testing of GSM and GPRS mobile devices and base stations. It operates across 850, 900, 1800, and 1900 MHz bands and delivers integrated radio signaling and protocol control compliant with ETS 300 607-1 specifications. The instrument combines DSP-based parallel transmitter and receiver measurements with dual operational modes: advanced manual control for technicians and Go/No-Go testing for field operators. PhoneTest PC software provides test script generation, data management, and comprehensive reporting.
Technical Specifications
RF Measurements
• Supported bands: GSM 850, P-GSM, E-GSM, R-GSM, GSM 1800, GSM 1900
• GMSK modulation with Bt 0.3
• Phase error (modulation): ±30° peak range, 0.1° resolution, better than 1° RMS accuracy
• Frequency error: ±5 kHz range, 0.5 Hz resolution
• Output level: -120 dBm to -40 dBm with ±1.5 dB accuracy (typically ±1 dB)
• Output impedance: 50 Ω nominal, VSWR better than 1.3:1
• Reverse power protection: 10 W maximum
• Power reading: 0.1 dB resolution, better than ±0.9 dB accuracy for Pin < -2 dBm
• Phase profile: ±25° range with better than 1° RMS accuracy
• Power profile: 50 dB range (40 dB for Access Bursts)
Burst Analysis
• Burst timing range: -128 to +127 bits with ±0.1 bit accuracy
• Supports Normal and Access burst types
• Phase error typically < 1.2° RMS
Receiver Testing
• BLER and BER measurements for GPRS validation
• Receiver sensitivity testing via CS1 and CS4 channel coding schemes
– Key Features
• Dual-band handoff between GSM 900/1800, GSM 850/1900 pairs
• TDMA power meter for any traffic channel measurement
• Full burst or ramp-only (leading/trailing) power profile display
• Harmonic and RF carrier leakage characterization
– Typical Applications
• Device type approval and conformance testing
• Base station performance validation
• Manufacturing quality assurance and Go/No-Go screening
• Field service and maintenance diagnostics
– Compatibility & Integration
PC-based PhoneTest software provides automated test execution, data logging, and report generation for laboratory and field environments.
