Archives

Isotropic Omnifield Antenna® OFA-GH 30MHz-6GHz, 5 mV/m-500 V/m

July 31, 2019

 

OFA-G_with SA-on the table  OFA-G In box without cable

A unique broadband active E- field isotropic (spherically isotropic) antenna for RF spectrum monitoring. Connects to any spectrum analyzer, and has frequency response practically independent of antenna orientation or electric field direction. Offers high maximum field strength limit of 500 V/m and broad dynamic range for the variety of RF regulatory, safety, EMC, wireless and telecommunications applications.  This antenna is a variant of  OFA-G antenna  but has about 20 dB higher overload limit and higher dynamic range.

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.

New! Frequency Shaped Isotropic Electric Probes: PI-SH-ICNIRP and PI-SH-FCC for RF safety testing.

July 9, 2016

Meter with PI-SH Probe 2 PI-SH Probes 2

PI-SH (ICNIRP or FCC) is an isotropic electric field probe with shaped frequency response meeting the ICNIRP or FCC RF safety standards for occupational and general public exposure limits (see the specified frequency ranges below). Meter readings are shown in % of the STD – standard reference level, eliminating the need to know the source frequency. Probe output is proportional to RF power density in the whole specified power range, producing the correct RF power measurements in single and multi-signal environments, typically present at multiple antenna sites.

Smart Fieldmeter® Digital RFP-05M

May 16, 2013

 

Smart Fieldmeter® Digital RFP05M

Electromagnetic field monitor having flexible and expandable architecture, state of the art design with convenience and simplicity for users on a budget.

SFD can be used for evaluation and measurements of EM fields for:

  • • Safety and regulatory assessment of AM/FM/TV and GSM cellular transmitters.
  • • Safety and Regulatory assessment of microwave ovens and RF heating equipment.
  • • Monitoring of the RF radiation from industrial, scientific and medical equipment.
  • • Monitoring of RF fields from GTEM cells and antennas for EMC testing of consumer, industrial, automotive and military products.
  • • Data logging of RF fields during Electrosmog testing and environmental monitoring in stand alone and remotely controlled testing sites.
  • • Personal RF field monitoring and protection.

Meter Power 2  Meter Logo 2 SFD_Large_Screen promo

Main Features

• Model RFP-05M is a development of the model RFP-05 and has two main advantages:

1. Compatibility with Insulated Modem (IM) accessory, allowing both fiber optic and USB RF isolated bidirectional control and battery charging without any additional wires coming out of the meter.

2.  Graphical display to plot the data real time.

  • Operates with and stores the data of multiple probes, both current and future models.
  • Large dynamic range with autoranging and auto-zero functions offers high accuracy and simple operation.
  • Advanced programmable data sampling with time and space averaging allows monitoring and recording of time variable signals.
  • Internal data logging with removable flash memory card offers programmable and practically unlimited data storage.
  • Serial bidirectional data port and IR remote control for PC data transfer and wireless instrument control.
  • Bright color OLED display with good visibility can be set to display only the information important to the user.
  • Portable lightweight design with detachable isotropic probe and two-cell AA primary or rechargeable battery offers flexibility and advantages in the field.

 

Isotropic Omnifield Antenna® OFA-G 30MHz-6GHz

May 4, 2013

Omnifield Antenna® Model: OFA-G

OFA-G_with SA in hand_2

A unique broadband active E- field isotropic (spherically isotropic) antenna for RF spectrum monitoring. Connects to any spectrum analyzer, and has frequency response practically independent of antenna orientation or electric field direction. Offers high sensitivity and broad dynamic range for the variety of RF regulatory, safety, EMC, wireless and telecommunications applications.  This antenna is very similar to previous generation OFA-S/SE antennas but has about 12 dB higher dynamic range, extends frequency range to 6 GHz and has much smaller size and weight.

OFA-G USB SA PC 1  

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.

 

Selective Field Analyzer SFA-G 30MHz -6GHz

May 3, 2013

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.

USB SA Screen 1 OFA-G with USB SA In hand 2

Omnifield Antenna® OFA-G, consists of antenna head with handle and detachable power unit PU-5G. Antenna head has 3 antennas positioned normal to each other. Signals from each antenna are combined to allow output signal to be proportional to the absolute value of the field regardless of the field direction. Power unit contains gain stage, rechargeable battery and connectors for the antenna and output cable.

SA-S Picture

Spectrum Analyzer SA-S/J is equipped with powerful RF signal processing software, preprogrammed with OFA-G antenna factors, allowing the display of the measurement data in natural field strength or power density units.

There are two variants of spectrum analyzer, having different frequency range: SA-S (1 Hz-4.4GHz) and SA-J (100 KHz-12.4 GHz).