The Marconi 6910 is a precision RF power sensor engineered for accurate power measurements across microwave and millimeter-wave frequencies. It delivers a chopped DC analog output proportional to RF input power, expressed as a 925 Hz square wave. Designed for integration with Marconi Instruments 6950 analog and 6960 series digital RF power meters, the 6910 provides 50 dB dynamic range measurement capability with high linearity and minimal drift.
Technical Specifications
Frequency Range: 10 MHz to 20 GHz
Power Measurement Range: −30 dBm to +20 dBm (1 µW to 100 mW)
Maximum RF Input: 24.8 dBm average (300 mW); 42 dBm peak (15 W) for 2 µs pulses
Accuracy: ±0.5% at 25°C across +10 dBm to +20 dBm
Resolution: 0.01%
Drift: 10 nW typical (1 hour post-warmup at constant temperature)
VSWR Performance:
• 1.25:1 (10 MHz to 30 MHz)
• 1.1:1 (30 MHz to 2 GHz)
• 1.18:1 (2 GHz to 16 GHz)
• 1.28:1 (16 GHz to 18 GHz)
• 1.4:1 typical (18 GHz to 20 GHz)
Output: Chopped DC analog; 925 Hz square wave proportional to input power
RF Connector: Precision N-type male, 50 ohm
– Key Features
Calibration and linearity factors are provided with each sensor. The sensor exhibits minimal temperature-dependent drift following a 24-hour warm-up period. Compact form factor measures 87 mm length by 33.5 mm diameter, weighing approximately 140 g. Rugged mechanical construction supports both benchtop and field deployment without performance degradation.
– Typical Applications
Precision power measurement in RF and microwave test systems, field service, antenna characterization, and transmitter validation across 10 MHz to 20 GHz.
– Compatibility & Integration
The 6910 integrates directly with Marconi Instruments 6950 analog and 6960 series digital RF power meters via standard connector interfaces.
