Com-Power Corporation
Com-Power Corporation has been a supplier of instrumentation for EMI / EMC Testing (electromagnetic compatibility), telecommunication ( Part68 ) and product safety ( UL / IEC CSA) testing since 1989.
- 714 528 8800
- (714) 528-1992
- sales@com-power.com
- 114 Olinda Drive
Brea, CA 92823
United States
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Antenna Kits
Com-Power offers five portable antenna kits suitable for offsite EMC testing. These kits are supplied with a custom hard plastic carrying case which has individual compartments for all the included items.
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CDNs
S Series
The S series CDNs are for shielded cables with single or multiple conductors. These CDNs are supplied with professional audio (RCA), D type and Centronics connectors.
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Current Probes
Com-Power's Current Injection Probes are used for RF conducted immunity testing per IEC 61000-4-6, CISPR 16-1-2, RTCA DO-160 and MIL-STD 461. Current injection Probes are to be used only when there is no commercially available CDN for the type of port(s) to be tested.
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Line Impedance Stabilization Networks
LISN
LISN stands for 'Line Impedance Stabilization Network'. Com-Power offers a line of LISNs developed for conducted emission testing according to the most commonly adopted EMC specifications like CISPR, FCC, ISO, EN, RTCA DO-160 and MIL-STD 461D. The LISN circuit is designed and constructed to meet the performance criteria given by these standards.
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Absorbing Clamps
The absorbing clamps also known as ferrite clamps are used for measuring disturbance power on power input lines as well as other auxiliary I/O lines.
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Impedance Stabilization Networks
ISN
They are required for the measurement of conducted common mode noise on Telecom Cables of Information Technology Equipment (ITE). These measurements are necessary to meet the requirements specified in CISPR 22 and CISPR 32 standards.
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Surge Generator
SGTEL-168
The SGTEL-168 is a versatile surge generator designed to simulate all the environmental surge transients as described in FCC TIA-968-B (formerly known as Part 68) and Industry Canada CS03 standard. It provides a single box solution Type A, Type B (metallic and longitudinal) and Powerline surges. These surges simulate the effect of lightning on telecom equipment under test. So it is also referred to as Lightning Simulator. The electromagnetic energy from the lightning couples into the equipment by powerline or telecom cable exposed to the lightning directly or indirectly. This model is an upgraded version of SG-168 with windows software control and a user friendly front panel for manual operation.
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Spectrum Analyzer
SPA Series
The SPA-series high performance, low cost, easy to use, portable spectrum analyzers are ideal for a pre-compliance laboratory. All three models feature a wide frequency range and low noise floor to increase system sensitivity and system to noise ratio. An advanced, easy to use interface makes your work simple by putting the features you need at your fingertips.
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Active Monopole Antenna
AM-741
The 41 inch Monopole antenna is required for making electric field emission measurements below 60 MHz per Military standards (MIL-STD-461) and FAA (DO-160) specifications. This antenna is for emissions measurements only. It cannot be used for transmitting. The Active Monopole antenna is generally used in a shielded room or in a screen room, with the equipment under test (EUT) placed on a metal ground plane. The 41 inch rod and the ground plane behave electrically as though a mirror image of the rod were located below the ground, and the ground removed. Since the stainless steel plate does not have enough surface area to mirror the entire 41 inch rod, it is bonded to the surrounding ground plane during use. The AM-741 is battery powered to prevent measurement errors that maybe caused by external power cables. The ANSI equivalent capacitance substitution (ECSM) method is the recommended method for calibrating AM-741 monopole antenna. The individual calibration data will be included with each antenna.
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CDNs
T Series
The T series CDNs are for cables with unshielded balanced conductor pairs typically found in ISDN, DSL and Ethernet data transfer applications.
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Log Periodic Antennas
Log Periodic antennas allow quick sweep measurements without a band break. This feature makes it convenient to use the Log Periodic antenna with a automated emissions or immunity measurement system. The size of the antenna also allows it to be used in a small area like a shield room.
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CDNs
M Series
Coupling Decoupling Networks are recommenced for all power supplies connections. The distubance signals are coupled to each conductor in the supply lines according to EN 61000-4-6 standard. The standard M series CDNs have a current rating of 25 Amps. Com-Power CDNs are available for power supplies from 1 to 5 conductors. These CDNs cover the frequency range of 150 kHz - 230 MHz.
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Near Field Probes
A typical emi emission test is performed using broadband EMC antennas such as biconical, log periodics, Combilogs and horns. These antennas usually placed at 1, 3 or 10 meter distance as required by the test specification. These is considered far field measurements and the emission limits are given for the specific distance by the specification. During EMI compliance measurements, the emissions levels from products are compared with these limits. If the product exceeds these limits it is considered failing. These tests are typically conducted in a open area test site IOATS) or inside an anechoic chamber.
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Preamplifiers
Com-Power broadband high gain preamplifiers were designed for electromagnetic interference (EMI) testing and certification. EMC test labs use preamplifiers to improve sensitivity of the test system during EMI radiated emissions measurements. Without a high gain preamplifier, signals picked by the antenna that have amplitudes below the noise floor of the test system cannot be measured. The preamplifier gain has minimum variations for the entire operating frequency range for accurate emissions measurements. The Com-Power preamplifiers were primarily intended for EMC applications. However, it can be used for other applications that require signal amplification.
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Combilog Antenna
AC-220
The AC-220 Combilog antenna is for EMC emission and immunity up to 2 GHz.. It combines the electrical properties of two antenna (biconical and Log ). It reduces overall testing time by 20 - 30% due to antenna switching. It is Optimized for emission measurements, but can handle up to 500 Watt CW, making it suitable for most immunity measurements . Each antenna is individually calibrated at 10 meters and the data included the purchase price.
