The Marconi IFR Aeroflex 4921 RF Shield is a portable enclosure that isolates devices under test from external RF signals and prevents interference between adjacent units and local base stations. It delivers >80 dB attenuation across 700 MHz to 6 GHz, with internal RF absorption material that minimizes reflections and supports high-precision measurements. Operating from 100 MHz to 8 GHz, this 4.8 kg enclosure handles 100 W continuous and 1000 W peak RF power, making it suitable for 3G mobile phone testing, data card evaluation, and WLAN equipment assessment.
Technical Specifications
• Shielding Effectiveness: Typ. 90 dB (700–1000 MHz); Typ. 90 dB (1700–2000 MHz); Typ. 85 dB (2000–2500 MHz); Typ. 80 dB (5000–6000 MHz). Measured per German military standard VG 95737 using shielded RF cable with ≥100 dB isolation. Valid for one year after delivery and up to 50,000 open-close cycles.
• Frequency Range: 100 MHz to 8 GHz
• RF Power Handling: 100 W continuous; 1000 W peak
• Internal Dimensions: 500 mm × 400 mm × 400 mm
• Weight: 4.8 kg (10.5 lbs.)
• Mechanical Durability: Rated to 50,000 open-close cycles; gas springs provide smooth operation with firm lid lock when closed – Key Features • N-type female RF connectors; removable rear panel accommodates customer-specific connectors (DB-9, Bluetooth antenna connector, etc.)
• Internal RF absorption material reduces reflections for stable measurement results
• Rocker arm lever and gas springs enable easy, repeatable access
• Low weight and compact footprint support field portability – Typical Applications • 3G mobile phone and data card testing
• WLAN equipment assessment
• RF measurement isolation in multi-unit test environments – Compatibility & Integration Designed to complement the Aeroflex 4916 Antenna Coupler and associated test instruments.
