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

# 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.**

## Details

- **Price:** 5670.0 USD
- **Vendor:** Com-Power
- **Type:** Rf Gen
- **Tags:** Com-Power, Comb, Manufacturers, product_manual_group_1, Product_new, Signal Generators

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 5670.00 USD | In stock |

## Images

- CGO-5100B Com-Power Comb Generator

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> Source: [ValueTronics](https://valuetronics.com/products/cgo-5100b-com-power-comb-generator-new)
> Updated: 2026-05-30