Tektronix DF-A0047
Directional Finding Antenna

Antenna type Combined loop / log-periodic dipole array

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

Tektronix DF-A0047 Directional Finding Antenna

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.

Key specifications
  • 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.

Tektronix DF-A0047 Directional Finding Antenna

Tektronix DF-A0047 Datasheet

Tektronix DF-A0047 Directional Finding Antenna

DF-A0047 direction finding antenna
Item Description
DF-A0047 Directional antenna, 20 – 8500 MHz, with electronic compass and preamp
DF-A0047-01 Frequency range extension for DF-A0047 directional antenna, 9 kHz – 20 MHz
DF-A0047-C1 DF-A0047 antenna and DF-A0047-01 extension
016-2107-00 Transit case for DF-A0047 and DF-A0047-01

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