VHF/UHF/THF Fixed Site Direction Finders
Our VHF/UHF/THF direction finders typically are installed in permanent or semi-permanent locations where the antenna has a relatively clear view of the surrounding area and RF obstructions and reflectors are minimal. Three stackable antennas mounted on top of a mast, tower, or building cover 115 - 1000 MHz. in three frequency bands. It can be remotely operated via an Ethernet or radio-modem connection. Networked with other fixed site or mobile direction finders and utilizing our TargetTrack software facilitates geolocation of the targeted RF emitter.
The direction finder is available as a packaged system containing everything necessary to install and operate a fixed site direction finder or it can be purchased as components and integrated by the user.
Windows based software is provided with the direction finder allowing the user to configure the direction finder and display the bearings on a map based display. The software tunes all networked sites to the same frequency and bearings from these sites are used to predict the location of the RF source.
Multiple direction finder processors and receivers can be connected to a single antenna permitting simultaneous direction finding on up to 32 frequencies.
|DF Method||Synthetic-Doppler with patented "Smooth Summing"|
|Frequency Range||115 - 1000 MHz|
|Accuracy||< 1 deg rms (115 - 500 MHz)|
|< 1.6 deg rms (500 - 1000 MHz)|
|Sampling Rate||2 samples per second|
|Sensitivity||-123 dBm (FM receiver dependent)|
|Averaging||Adjustable from 1 to 20 samples|
|RF pulse detection||100 ms minimum|
|Commutation frequency||Adjustable (250, 500, 1000, 2000 Hz)|
|Voltage Range||11 - 14 VDC|
|Power||6.5 W @ 12 VDC (processor and antenna)|
|Temperature Range||-25 °C to 85 °C (antenna)|
Per EN 61000-6-2, EN 61000-6-4 AND EN 301 489-1