Active Monopole Antenna
The AM-741R is designed for radiated emissions testing below 30 MHz and includes:
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Telescoping rod: Adjustable from 23 cm to 105 cm (approx. 41 inches for compliance with most standards)
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Low-noise preamplifier: Enhances signal sensitivity and SNR
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Power Indicators: RF ON/OFF, battery low, amplifier saturation, and charging status
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Mounting: 1/4"-20 threaded hole for tripod mounting (compatible with Com-Power AT-220)
Applications
Compliance with standards such as:
- MIL-STD-461 (RE102)
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RTCA DO-160 (Section 21)
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CISPR 25 (Automotive)
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Other sub-30 MHz emission tests
Grounding & Installation
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Standard Grounding: Counterpoise must be bonded to the ground plane where the EUT is installed
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MIL-STD 461 Grounding:
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Output cable shield must be grounded via metallic bracket
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Ferrite (20–30Ω @ 20 MHz) must be centered between bracket and antenna
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Optional AMS-741 Grounding Kit available, includes:
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Ferrite-fitted cable
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Grounding bracket
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Elbow adapter
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- Frequency Range: 9 kHz to 30 MHz (useable up to 60 MHz)
- Active Matching Network
- Fiber Optic Remote Monitor/Control option
- Battery Operated
- Individual Calibration Included
- Three-year Standard Warranty
- Product Name: Active Monopole Antenna
- Frequency Range: 9 kHz to 30 MHz (useable to 60 MHz)
- Polarization: Vertical
- Nominal Impedance: 50Ω (output port)
- Battery Type: 6 VDC NimH (rechargeable)
- Average Battery Life: 10-12 hours (new, fully charged battery)
- Active Antenna Factors (typical): -1.2 to -0.3 (average: -0.5) [dB(m-1)] (9 kHz to 30 MHz)
- Antenna Factor Variation (maximum): ±0.5 dB (9 kHz to 30 MHz)
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- Antenna Masts - Automated and Manual
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- Comb Generators
- Conducted Immunity Test Systems
- Current Monitor Probes
- Current Probe Calibration Fixtures
- EM Clamps
- Feed Through Capacitor
- ISNs - Impedance Stabilization Network
- Line Impedance Stabilization Networks
- Magnetic Field Generator
- Near Field Probes
- Power Amplifiers
- Pre-compliance Emissions Test Systems
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- System Controllers
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- Tripods For EMC
- Turntables