
Tektronix offers the Alaris DF-A0047 direction finding antenna for use in interference hunting applications with our USB spectrum analyzers and SignalVu-PC Map application software. The DF-A0047 contains multiple antennas and a user-selectable preamplifier to cover a broad range of interference frequencies and levels. Powered via USB, the DF-A0047 includes an integrated compass that transmits angle information to the SignalVu PC Map application for automatic creation of lines of bearing on the map.
Frequency range: 20 - 8500 MHz
9 kHz-20 MHz extension module available
3 user-selected bands
Internal preamp can be used or bypassed
Rotating trigger-switch to control operating bands, preamp on/off and transmit bearing
Horizontal or vertical polarization
Operating temperature from -30 to +55 °C
IP56 ingress protection
Weighs 1.8 kg
Includes armrest extension brace for easier handling in the field
Combined with a Tektronix USB spectrum analyzer, the Alaris DF-A0047 direction finding antenna makes interference hunting easy. Lines of bearing are automatically transmitted from the antenna to SignalVu-PC Map software, enabling fast triangulation on interference sources.
All specifications are guaranteed unless noted otherwise. All specifications apply to all models unless noted otherwise.
Antenna type | Combined loop / log-periodic dipole array |
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Frequency range | 9 kHz - 20 MHz (DF-A0047-01) 20 - 500 MHz 500 - 8500 MHz |
Nominal input impedance | 50 Ω | VSWR | <3.5:1, typical |
Antenna gain | Variable with frequency (< 600 MHz) 6 dBi (> 600 MHz) |
Amplifier | Low noise, 8-18 dB gain, switched in/out |
Power supply | 5 V @ 200 mA maximum, via USB |
Interface | USB 2.0 |
User inputs | Band selection by means of a rotary switch Active/passive selection by means of a push button Transmit angle information by releasing a push button |
Angle detection | Digital compass, integrated with antenna |
Mechanical | Form factor: Handheld |
Dimensions | 543 mm x 320 mm x 60 mm |
Weight | 1.8 kg |
Environmental | Operating temperature range: -30 ºC to +55 ºC Storage temperature range: -30 ºC to +71 ºC Ingress protection: IP56 |