Comb Generator Reference: 100 MHz Step Size

Features

• ▸ Microwave radiated reference signal source for OATS, SAC, and FAC — broadband EMC reference for fast pre-test validation of radiated emissions test sites in the microwave bands above 1 GHz.
• ▸ 1 GHz to 18 GHz frequency range — covers FCC Part 15 / CISPR 32 microwave bands, the upper portion of MIL-STD-461 RE102, RTCA DO-160 radiated, and 5G FR2 sub-bands; ideal for verifying microwave horn antennas, preamplifiers, and high-frequency cabling.
• ▸ 100 MHz step size — produces fundamental and harmonics every 100 MHz throughout the 18 GHz span, providing well-spaced reference markers across the microwave spectrum.
• ▸ High frequency stability of 5 ppm — tighter frequency tolerance than the lower-frequency models is critical at microwave frequencies where receiver resolution bandwidths are typically narrower.
• ▸ Built-in stub antenna with circular chassis ground plane — integral antenna on top of a circular chassis produces a uniform omnidirectional radiation pattern in the horizontal plane, removing the need for antenna swap-outs across the band.
• ▸ Detects connector and cable issues at high frequencies — at microwave frequencies, even a slightly loose connector can produce dB-level measurement error; daily verification with the CGO-5100B catches degradation immediately.
• ▸ Battery operation, ~18 hours per charge — internal NiMH battery eliminates external power cabling; especially critical above 1 GHz where any cable could perturb the radiated field.
• ▸ Compact circular chassis — 6″ × 1″ (15.24 × 2.54 cm), 1 lb (0.45 kg); ideal for placing on turntables in 3 m or 10 m chambers.
• ▸ External LED indicators — battery low and power on LEDs confirm operating status during chamber walk-throughs.
• ▸ Suitable for shielding effectiveness measurements — broadband output is also useful for evaluating enclosure and material shielding effectiveness across the microwave band.
• ▸ NIST-traceable calibration — calibration data and certificate ship with each unit; ISO 17025 accredited calibration available on request.
• ▸ Three-year standard warranty — backed by manufacturer support.