CGO-520

Radiated Reference Signal Source for OATS, SAC, and FAC

Broadband EMC reference for fast pre-test validation of radiated emissions test sites at frequencies above 1 GHz — catches failing microwave preamps, high-frequency cable failures, and connector degradation before they corrupt compliance data.

Wide Frequency Range: 20 MHz to 4.5 GHz

Spans the upper-frequency portion of FCC Part 15, CISPR 32 Class B, RTCA DO-160 radiated bands, and into 5G FR1 territory — the highest-frequency comb generator with detachable antennas in the Com-Power lineup.

20 MHz Step Size — Well-Spaced Reference Markers

Produces fundamentals and harmonics every 20 MHz across the full 4.5 GHz span — well-spaced reference markers for spectrum analyzer monitoring without overwhelming displays at high resolution bandwidths.

Circular Base for Uniform Omnidirectional Radiation

The circular chassis acts as a ground plane producing a uniform radiation pattern in the horizontal plane — consistent radiated output regardless of orientation on the turntable.

Two Interchangeable Detachable Monopole Antennas (2-inch and 12-inch)

Both monopoles are supplied — use the 12-inch for the lower portion of the band and the 2-inch for optimized radiation toward the upper end of the 20 MHz to 4.5 GHz range.

Compact Cylindrical Chassis

7″ × 1″ (17.8 × 2.5 cm), 1.5 lbs (0.7 kg) — easily mounted on tripods or placed directly on turntables for site verification without occupying significant setup space.

Battery Operation — 18+ Hours per Charge

Internal 6 V / 1 Ah NiMH battery eliminates external power cabling that could disturb the radiated signal pattern — especially critical above 1 GHz where any nearby cable can perturb the radiated field. Charger output: 6 VDC (unregulated) at 500 mA.

Automatic Low-Battery Shut-Off

Battery monitoring circuit shuts the unit down before output level degrades — protects baseline data integrity by preventing reference measurements from being collected at reduced amplitude.

Stable, Repeatable RF Output

20 ppm frequency stability, ±0.1 dB amplitude stability, and less than 1 dB time stability over 12 months — ensures day-to-day baseline comparisons reflect real changes in the test setup, not drift in the source.

External LED Indicators

Battery Low and Power On LEDs confirm operating status at a glance during chamber walk-throughs — no need to interrupt a test session to verify the unit is active.

NIST-Traceable Calibration

Individually NIST-traceable calibrated; calibration data and certificate ship with each unit. ISO 17025 accredited calibration available on request for laboratories requiring full accreditation chain documentation.

Three-Year Standard Warranty

Three-year standard warranty backed by manufacturer support.