Com-Power CGO-5100B 1 to 18 GHz Comb Generator

Key Features At A Glance

• Radiated reference signal source for EMI test site verification and equipment monitoring
• 100 MHz frequency step size with usable frequency range up to 18 GHz
• Frequency stability of 5 ppm with time stability <1 dB over 12 months
• Built-in antenna on circular chassis for uniform horizontal-plane radiation
• Battery powered (3.6 V NimH) — eliminates external cabling that could interfere with radiated signals
• Over 18 hours of continuous operation when fully charged
• Ships with charger and custom wooden storage box; three year warranty

The Com-Power CGO-5100B is a radiated reference signal source designed for verifying EMI test sites and equipment used in emission measurements. Unlike a tunable signal generator, the comb generator radiates all of its harmonics simultaneously without any need for tuning, providing a known reference signal across a wide frequency span from a single, self-contained instrument.

Most EMC regulatory agencies require EMI laboratories to perform regular calibration of test equipment and test sites used for emission measurements, and many labs perform this formal calibration annually. The CGO-5100B is intended for the interim checks between those calibrations: test engineers use it to keep a regular log of radiated readings on their site, which can reveal a broken antenna, a bad cable, a blown preamplifier, or a poor RF connection that would otherwise go undetected. The comb generator can also be used to compare several test sites to determine the impact of the site on measurement data, and to assess the shielding effectiveness of enclosures and materials.

ValueTronics stocks and ships test and measurement equipment from our 20,000 sq ft secure warehouse at 1675 Cambridge Drive in Elgin, Illinois. Every instrument we ship — new or pre-owned — is handled in-house by our own team rather than drop-shipped from a third party, which lets us verify what leaves the building and stand behind it after it arrives.

Accessories Supplied

• Charger
• Custom wooden storage box

Product Core & Specifications

Parameter	Specification
Product Name	Comb Generator
Frequency Range	1 to 18 GHz
Intended Application	Reference EMC Site Measurements
Frequency Step Size	100 MHz
Frequency Stability	5 ppm
Time Stability	<1 dB over 12 months
Charger Input	6 VDC, 500A
Operating time	>18 Hours when fully charged
Battery Type	3.6 V, NimH
External Indicators	Battery Low, Power On
Antenna	Built in
Circular base dimensions	8 x 1 inches / 19.2 x 2.4 cm
Weight	1 lbs / 0.5 kg

Important: Vertical-plane orientation: the CGO-5100B can be turned on its side for vertical-plane measurements, but this is generally not recommended because of ground-plane influence on the radiation pattern.Important: The Comb Generator can be turned on its side for vertical plane measurements, but is generally not recommended because of the influence of the ground plane on the radiation pattern.Important: All specifications are subject to change without notice. All values are typical, unless specified.

Please review the Manufacturer's Data Sheet to verify published specifications. Feedback on this webpage is always welcome — please reach out to your Test Architect at any time for questions or concerns. Thank you, we truly appreciate you being our customer.