The NBS-110 is a primary noise standard for calibrating noise temperatures in the frequency range of 75.0 to 110.0 GHz, using a WR-10 waveguide. It delivers an effective output noise temperature of 75.99 K with an accuracy of +0.37/-0.64 K, referenced at 628 mmHg and 293 K. The unit employs a cryogenic liquid nitrogen-cooled blackbody cavity with a precision horn at room temperature to minimize insertion loss and reflection uncertainty. An automatic nitrogen purge system eliminates the need for helium equipment. The system includes a precision barometer and thermometer for accurate measurements, and supports interchangeable horns for extended frequency coverage without recalibration.
The NBS-Series consists of calibration standards based on the primary fundamental physic constants of thermal noise and blackbody radiation. This provides the ultimate accuracy when measuring extremely low noise figures (noise temperatures). Simple, and versatile to use, the NBS-Series is an ideal solution for noise source calibrations, radiometer test references and low noise amplifier tests.
| Maury Microwave | |
|---|---|
| Product Category | Noise Standards |
| Product Number | NBS-110 |
| Product Name | Cryogenic Noise Standards |
