Portable EMC Antenna Kits for Pre-Compliance & Field Testing
Complete portable antenna kits covering 9 kHz to 40 GHz for radiated emissions testing per FCC Part 15/30, CISPR 15/22/32, MIL-STD-461, RTCA DO-160, SAE, and 3GPP 5G FR2. Each kit includes antennas, preamplifier(s), comb generator, PS-500 near-field probes, cables, and an airline-luggage-compatible rolling case. Individually calibrated with NIST traceability. ISO 17025 accredited calibration available.
Frequently Asked Questions: Antenna Kits
What are Com-Power Antenna Kits and why choose a kit over individual antennas?
Com-Power Antenna Kits are complete, portable EMC measurement systems pre-configured for specific frequency ranges and standards regimes. Each kit bundles the antennas, preamplifier(s), comb generator for site verification, the PS-500 near-field probe set, cables, and a custom compartmentalized rolling carrying case into a single airline-luggage-compatible package. Compared with assembling antennas individually, a kit provides guaranteed frequency continuity (no coverage gaps at antenna crossover points), factory-matched preamplifier selection for optimal system noise figure, bundled NIST-traceable calibration with all certificates dated together, and a single-SKU purchase that simplifies procurement. The rolling case makes offsite work — customer-site troubleshooting, contract-manufacturer qualification, or trade-show demonstrations — genuinely practical: the engineer arrives with a calibrated, frequency-continuous measurement capability in a single bag.
Which antenna kit should I choose for my application?
The correct kit is determined by three orthogonal questions: (1) your product’s frequency range, (2) the standards regime (commercial CISPR vs military MIL-STD vs avionics DO-160), and (3) the field type required below 30 MHz (H-field for CISPR, E-field for MIL-STD/DO-160). For commercial FCC Part 15 and CISPR 22/32 testing from 30 MHz to 1 GHz, the ANK-310 is the standard starter kit. For broadband wireless products requiring coverage from 25 MHz to 18 GHz in a single kit, choose the ANK-318. For microwave, millimeter-wave, or 5G FR2 work up to 40 GHz, the ANK-140 is required. For CISPR 15 lighting equipment or any commercial product needing H-field measurement below 30 MHz, choose the ANK-910L with its active loop antenna. For MIL-STD-461 RE102, RTCA DO-160 Section 21, or SAE automotive E-field measurements, choose the ANK-910M with its active monopole. The interactive Antenna Kit Selector applies cascading filters across all these criteria and recommends the correct kit in seconds.
What’s inside each antenna kit?
Every Com-Power antenna kit ships as a complete portable measurement system including: (1) antennas covering the full frequency range (biconical, log periodic, horn, active loop, or active monopole depending on the kit); (2) preamplifier(s) matched to the antennas for optimal noise figure (PAM-103 for sub-1 GHz, PAM-118A for 0.5–18 GHz, PAM-840A for 18–40 GHz); (3) a CGO-series comb generator for site attenuation verification per ANSI C63.4 and CISPR 16-1-4 before each test session; (4) the PS-500 Near Field Probe Set (400 Hz – 5 GHz) for PCB-level EMI source localization during debug; (5) all cables (N-type and BNC) needed for a standard 3-meter radiated emissions test setup; (6) individual NIST-traceable calibration certificates for every active item; and (7) a custom compartmentalized rolling carrying case sized to fit within common airline luggage envelopes, with foam inserts that immobilize each item during transport to preserve calibration.
What is the difference between ANK-910L and ANK-910M?
Both kits cover the identical 9 kHz to 1 GHz frequency range, but they differ in the antenna used below 30 MHz — and this difference reflects a fundamental physics distinction required by different standards regimes. The ANK-910L includes the AL-130R Active Loop antenna, which measures the magnetic field (H-field) — the quantity specified by commercial standards below 30 MHz including CISPR 15 (lighting), CISPR 22/32 (ITE and multimedia), and related EN 55-series standards. The ANK-910M includes the AM-741R Active Monopole (E-field rod antenna), which measures the electric field (E-field) — the quantity specified by military and aerospace standards including MIL-STD-461 RE102, RTCA DO-160 Section 21, and several SAE automotive tests. The two kits are NOT interchangeable: using the wrong field type produces measurements that cannot be certified against the standard. A laboratory testing both commercial lighting products and military/aerospace equipment typically needs both kits.
Are these kits suitable for formal compliance certification or only pre-compliance?
Each individual component in every Com-Power antenna kit — antennas, preamplifiers, and comb generators — is individually calibrated with NIST-traceable certificates, and ISO/IEC 17025 accredited calibration is available on request. The kit components themselves are fully compliant with the methods defined in CISPR 16-1-4, ANSI C63.4, MIL-STD-461, and related standards. However, formal compliance certification generally requires an accredited test facility — a CISPR 16-1-4 compliant Open Area Test Site (OATS) or a semi-anechoic chamber — not just calibrated antennas. The antenna kits are most commonly used for rigorous pre-compliance testing (identifying emissions issues before expensive accredited-chamber bookings), qualification and site-verification work at contract manufacturers and customer sites, and design verification throughout a development cycle. Relative measurements and troubleshooting work performed with these kits transfers directly to formal compliance outcomes.
How do Com-Power antenna kits support offsite and field testing?
Offsite and field testing is a primary design goal of every Com-Power antenna kit. Each kit ships in a custom compartmentalized rolling carrying case engineered specifically to fit within common airline luggage envelopes — checked or carry-on depending on airline and kit size. The compartmentalized foam insert immobilizes every item (antennas, preamplifiers, comb generator, probes, cables) during transport, which is essential for preserving NIST-traceable calibration during rough handling. In practice, an EMC engineer can pack a kit at the home laboratory on Monday afternoon, arrive at a contract manufacturer’s facility Tuesday morning, unpack and set up a calibrated 3-meter radiated emissions test within an hour, run site verification with the included comb generator, measure multiple products throughout the day, troubleshoot any emissions issues with the PS-500 near-field probes, and return home Tuesday evening. This workflow is practically impossible with ad-hoc antenna assemblies packed in separate cases.
What is the PS-500 Near Field Probe Set and why is it in every kit?
The PS-500 Near Field Probe Set is a complementary set of H-field and E-field probes covering 400 Hz to 5 GHz, used for PCB-level EMI source localization. When a far-field radiated emissions measurement shows a product failing the limit at a specific frequency, the question becomes: which trace, IC, cable, or enclosure seam on the product is radiating that energy? The H-field probes identify current loops on PCB traces radiating magnetic disturbance; the E-field probe identifies voltage-driven radiators like clock lines and cable shields. Including the PS-500 in every kit transforms the product from a “measurement tool” into a “diagnostic tool” — the engineer can not only confirm that a product fails but immediately begin root-cause troubleshooting to find and fix the source. This capability is invaluable during pre-compliance, debug, and rework cycles and is one of the primary reasons engineers purchase kits rather than antennas alone.
How are kit components calibrated and what traceability is provided?
Every active element in each antenna kit — all antennas, all preamplifiers, and the comb generator(s) — is individually calibrated at Com-Power’s facility before shipment. Each item ships with its own NIST-traceable calibration certificate documenting the antenna factor curve (for antennas), gain versus frequency (for preamplifiers), or output level (for comb generators) across the full operating frequency range. Certificates include the calibration date, next-calibration recommendation, equipment used, and the NIST traceability path. ISO/IEC 17025 accredited calibration is available on request for laboratories requiring full accreditation traceability in compliance reports. Recommended recalibration intervals are typically 12 months for active components (preamplifiers, active antennas, comb generators) and 24 months for passive antennas (biconicals, log periodics, horns). Com-Power provides recalibration services for all kit components.
Frequency Coverage at a Glance
The logarithmic frequency scale below shows where each kit operates. ANK-910L and ANK-910M share identical frequency range but differ in antenna type (loop for H-field versus monopole for E-field). ANK-318 overlaps both ANK-310 and part of ANK-140, offering broadband coverage in a single kit.
ANK-910L
9 kHz – 1 GHz (H-field Loop)
ANK-910M
9 kHz – 1 GHz (E-field Monopole)
ANK-318
25 MHz – 18 GHz (Broadband)
9 kHz 1 MHz 30 MHz 1 GHz 18 GHz 40 GHz
Scale is logarithmic. ANK-910L and ANK-910M have identical frequency ranges but use different antenna elements (loop for H-field commercial versus monopole for E-field military/aerospace).
Why Purchase a Kit Instead of Individual Antennas?
An EMC laboratory can, in principle, build a portable capability by boxing up individual antennas, a preamplifier, and cables from inventory. In practice, doing so introduces several failure modes that a dedicated kit eliminates entirely.
Calibration Traceability as a Bundle
Every calibration certificate ships together, dated together, and stored in the rolling case with the antennas themselves. No missing certificates, no mismatched dates, no scrambling to find Wednesday’s calibration for Friday’s test. When the time comes to reference specific equipment in a compliance report, all the paperwork is in one place — this alone saves hours of documentation work over the life of the kit.
Frequency Continuity Guaranteed
The biconical-to-log-periodic handoff at 300 MHz, the log-periodic-to-horn handoff at 700 MHz, and the loop-to-biconical handoff at 25 – 30 MHz are all factory-validated for each kit. An ad-hoc assembly with the wrong biconical could leave a gap in the 250 – 320 MHz range that would not be obvious until mid-measurement. Factory-matched kits eliminate this risk.
Setup Verification Built In
Site attenuation or setup verification requires a separate comb generator purchase — and matching it to the kit’s frequency range. Without it, there is no way to confirm the test setup produces reproducible results. Every Com-Power kit includes the appropriate CGO-series comb generator covering the kit’s full frequency range, so site verification becomes a single button-press rather than a separate equipment setup.
Transport & Protection Engineered for Field Use
A biconical antenna shipped in a cardboard box or a log periodic padded with foam from Amazon is at calibration risk from the first airline baggage handler. The compartmentalized rolling case is engineered for the trip: foam cutouts match each component’s exact shape, compression-limited to prevent mechanical stress during transport. Calibration integrity is preserved from lab to customer site and back.
Near-Field Troubleshooting Included
Usually engineers must add near-field probes to an ad-hoc antenna setup separately, finding compatible H-field and E-field probes across the frequency range. Every Com-Power kit includes the PS-500 Near Field Probe Set (400 Hz – 5 GHz), giving the engineer complete diagnostic capability from day one, not as an afterthought.