Com-Power Corporation · Comb Generator
CGC-105 Conducted Comb Generator
LISN Reference Signal Source — 10 kHz to 115 MHz
The Com-Power CGC-105 is a battery-powered conducted comb generator and LISN reference signal source covering 10 kHz to 115 MHz — the lowest-frequency conducted reference in the Com-Power lineup, ideal for CISPR 16, CISPR 32 / EN 55032, MIL-STD-461, and automotive CISPR 25 conducted emissions verification.
With user-selectable 10 kHz or 50 kHz step sizes and a high output impedance design safe for use whether the LISN is powered, unpowered, or connected to AC mains, the CGC-105 verifies your entire conducted measurement chain in minutes between formal calibrations.
Features
Built for Complete Conducted Emissions Verification
Conducted reference signal source for LISN-based test setups — verifies the entire conducted emissions measurement chain (LISN, cabling, transient limiter, EMI receiver) in minutes between formal calibrations.
Lowest-Frequency Starting Point: 10 kHz
The only Com-Power conducted comb generator that starts at 10 kHz — ideal for verification of MIL-STD-461, automotive (CISPR 25), and CISPR 32 / EN 55032 conducted setups that include sub-150 kHz measurements.
Frequency Range Up to 115 MHz
Covers the full CISPR 16, CISPR 32, and EN 55032 conducted emissions band (150 kHz to 30 MHz) with significant margin, ensuring all required harmonics are visible throughout the measurement range.
User-Selectable 10 kHz or 50 kHz Step Size
Choose 10 kHz for high-resolution baseline data near the lower band edge, or 50 kHz for sparser, faster sweeps with cleaner spectral lines that are easier to identify individually on the EMI receiver display.
Output Levels Close to or Above CISPR Disturbance Limits
Harmonics are produced at levels that show clearly on EMI receiver displays without requiring sensitivity adjustments, making baseline comparisons between test sessions straightforward and reliable.
High Output Impedance — Safe with Powered LISNs
High impedance to external line voltage allows the CGC-105 to be used while the LISN is powered, unpowered, or connected to AC mains — eliminating the need to disconnect the EUT power source between verification checks.
Interchangeable Output Adapter System
Output pin adapters CGC-P25A, CGC-P50A, and CGC-P100A allow direct plug-in to a wide variety of LISN EUT power port pin configurations — no additional wiring or adapters required for most standard LISNs.
Optional CGC-105P-ADA-CAL and CGC-105P-ADA-USP Adapters
Support direct calibration-instrument connection (CAL) and AC-receptacle connection (USP) for additional verification scenarios.
Long Battery Life: Over 23 Hours per Charge
The longest-running comb generator in the Com-Power lineup — internal 6 V / 1 Ah NiMH supports multiple full days of testing without recharging. Charger output: 6 VDC (unregulated) at 500 mA.
Stable, Repeatable RF Output
20 ppm frequency stability, ±0.1 dB amplitude stability, and less than 1 dB time stability over 12 months — allows direct comparison of measurements taken months apart with confidence.
Compact Form Factor
6.5 x 2.3 x 2.4 in (165 x 58 x 61 mm), 0.5 lbs (0.22 kg) — easy to carry, store, and plug directly into LISN EUT power ports without occupying bench space.
External LED Indicators
Battery Low and Power On LEDs confirm operating status at a glance — no need to interrupt a test session to verify the unit is active and has sufficient charge remaining.
NIST-Traceable Calibration
Calibration data and certificate ship with each unit. ISO 17025 accredited calibration is available on request for laboratories requiring full accreditation chain documentation.
Three-Year Standard Warranty
Three-year standard warranty backed by manufacturer support.
Specifications
CGC-105 Technical Specifications
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