July 31, 2019
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.
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.
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.
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).
May 2, 2013
Features of the Spectrum Analyzer SA-S/J
Specification of USB Spectrum Analyzers
We offer two models of USB spectrum analyzers:
- SA-S: 1 Hz – 4.4 GHz and
- SA-J: 100 KHz – 12.4 GHz.
- Dynamic range: -151 to +10 dBm.
- BW: 0.1 Hz-250 KHz.
- Dimensions: 7″x3″x1″.
- Power: Powered by USB port.
- Warranty and Calibration Period: 1 year.
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.
