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Active Receive Antennas


EMC Test Design   Eurofins York Logo


York Active Receive Antennas

York Active Receive Antenna

Model: ARA01

30MHz - 1GHz

Active Receive Antenna
Active Receive Antenna

The Active Receive Antenna (ARA01) is a compact dipole receive antenna for RF and EMC emissions testing with an antenna factor comparable to a conventional wideband passive antenna such as the Bilog.

The small size makes the ARA01 particularly suitable for use in anechoic chambers; however it can also be used on an Open Area Test Site (OATS) or at on-site locations.

The ARA01 features two sets of interchangeable Dipole Antenna Elements (DAE). The standard set (DAE01) is optimized for 200 MHz to 1 GHz, with usable sensitivity down to 30 MHz. For improved sensitivity between 30 MHz to 300 MHz, the optional DAE02 set is available.

The unit is powered from a single PP3 battery. A green LED indicates that the antenna is active, a red LED indicates that the battery is low and should be recharged or replaced. There is also an external DC option where the DC is supplied via the RF cable.

There are two sets of Dipole Antenna Elements (DAE) which can be used. The unit is supplied with one set as standard (DAE01). For higher sensitivity at the low frequencies DAE02 should be used.

The Active Receive Antenna has been designed as a compact emissions antenna. The small size makes it particularly suitable for use in anechoic chambers, however it can also be used on an Open Area Test Site (OATS).

Frequency Range 30MHz (200MHz optimum) to 1GHz using DAE01 100mm long antenna elements
30MHz to 300MHz (optimum) using DAE02 290mm long antenna elements
Output Connector 50Ω BNC socket
Output VSWR 1.5:1
Dynamic Range 90dB
1dB Compression 15.4dBm ≡ 35.5mW ≡ 1.33V (50Ω system)
Antenna Factor See graph below
Temperature Stability 5°C to 45°C: <1 dB
Time Stability Typically <1 dB over a 12 month period
Dimensions 34mm x 34mm x 150mm (168mm including connector) excluding dipole elements
Weight 0.39kg (including battery)
Power Supply One 9V battery (PP3 or equivalent) or 9V-12V 70mA external power supply with EDC01
Operating Time 6.5 hours typical with alkaline cells
Indicators Power on - green LED
Battery low - red LED

Standard Order Kits

Part Description Parts Included
ARA01KIT01 Standard ARA01 active receive antenna kit with pair of 200MHz to 1GHz antennas ARA01 Active receive antenna 2 DAE01 antenna elements CAL08 antenna factors Alkaline battery
ARA01KIT02 Enhanced ARA01 active receive antenna kit with pair of 200MHz to 1GHz and pair of 30MHz to 300MHz antennas and external power adaptor ARA01 Active receive antenna Pair of DAE01 antenna elements Pair of DAE02 antenna elements EDC01 External power adaptor CAL08 antenna factors Alkaline battery


Accessory Part Number Description
Antennas DAE01 200MHz to 1GHz (optimum) 100mm long antenna elements
DAE02 30MHz to 300MHz (optimum) 290mm long antenna elements
External power supply adaptor EDC01 External power adaptor - injects ARA supply onto coax cable
Tripod Adaptor TRA01 Tripod adaptor with ARA01 mounting brackets


Typical York ARA01 Output Measurement Results

Antenna Directional Sensitivity

Antenna Factor with DAE01 Antenna Elements

 Antenna Factor with DAE02 Antenna Elements

 Antenna Factors

EMC Test Design Active Broadband Isotropic Antenna (30 MHz to 6.0 GHz)


EMC Test Design


Omnifield Antenna


30 MHz to 6 GHz


Active Receive Antenna OFA-G 


A unique broadband active E- field isotropic (omni-directional) antenna for RF spectrum monitoring


Wide dynamic field range 1 mV/m - 60 V/m




Active Receive Antenna with Laptop

 Spectrum Analyzer


But Online


Omnifield Antenna  Model: OFA-G

Antenna Sensor: Isotropic 3-Axis.

Frequency range: 30 MHz - 6 GHz.

Dynamic range:  1 mV/m - 60 V/m)

Dimensions of the Antenna:
Antenna Unit (LxD) 9.0" x 2.25".
Power Unit: (LxWxD) 3.75" x 2.25" x 1.25"

Rechargeable battery operation time: 10 hours.

Warranty and Calibration Period - 1 year.

Calibration certificate, traceable to UK NPL, with
measured linearity, antenna factors (AF) and rotational isotropicity.

Standard Antenna Set Includes:

Antenna unit OFA-G.

Power unit PU-5G.
Custom 5 ft. ferrite beaded RF cable.
AC/DC universal plug-in charger.

Table tripod with mounting clip.
Users Manual with documentation.

Rugged foam padded storage case.



Extendable 5 ft. tripod.

Custom length RF cables.

Extended maintenance contract.

Omnifield Antenna consists of three parts: antenna head, handle and power unit. Antenna head and handle comprise a single module while power unit is detachable from the handle to allow convenient storage in the supplied rugged plastic case. For normal operation handle must be connected to the power unit to provide power to the antenna head.  Antenna head has 3 antennas positioned normal to each other.


Signals from each antenna are combined and amplified to allow utput signal of Omnifield Antenna to be proportional to the absolute value of the field regardless of the field direction.  Power unit contains the rechargeable battery and connectors for the antenna and output cable. Ferrite beads, located on this cable, decouple the antenna from spectrum  analyzer and reduce the effects of this analyzer on measured field. This cable also allows operator to have freedom to place the antenna in right position either on non-metal table tripod (supplied with every system) or onto optional 5 feet adjustable tripod.

Spectrum analyzers with options compatible with Omnifield Antenna�







HP 85712B

EMC personality card



HP 85712D

EMC personality card




PC software for field strength measurements is standard.




Option 13


PC software.




PC software is standard.

Selective Field Analyzer

SFA-G Spectrum Analyzer


Selective Field Analyzer SFA-G

Active broadband isotropic antenna combined with portable USB powered spectrum analyzer.

OFA-G antenna has frequency response independent of antenna or electric field orientation.

It offers broad dynamic range for the variety of RF regulatory, safety, EMC, wireless and telecommunications applications.

Spectrum analyzer SA-S/J displays the frequencies and field strength of selected signals, allowing all results to be viewed and stored on PC.

Spectrum Analyzer

S: 1Hz - 4.2GHz
J: 100KHz - 12.4GHz

SA-S Picture


Includes a High Dynamic Range Measuring Receiver

0.25 dB relative accuracy

0 dBm to -125 dBm, 150 KHz to 1 GHz

0 dBm to -115 dBm, 1 GHz to 4.4 GHz

Adjustable digital audio filters

Accurate AM and FM measurements.

Powerful suite of software for real time signal processing for Windows is included.

Specification of USB Spectrum Analyzers

We offer two models of USB spectrum analyzers:

SA-S: 1 Hz - 4.4 GHz &

SA-J: 100 KHz - 12.4 GHz

Dynamic range: -151 to +10 dBm

BW: 0.1 Hz-250 KHz

Dimensions: 7″x 3″x1″

Power: Powered by USB port

Warranty and Calibration Period: 1 year

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An Electro Mechanical Research and Development (EMRAD) Corporation, Company

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