NTi MA305FT HF Active Antenna

This low noise active antenna, which is produced according to the highest standards, covers the frequency range between 9kHz and 300MHz. With a radiating element of only 22 cm it can be set up without attracting attention. Integrated double surge protection of the active components: Coarse protection by gas discharge tubes with 60V firing voltage with max. pulse leakage current 1kA (8/20µs) with additional integrated ESD fine protection of max. 2kV.

Key Facts

  • Wideband design from 9kHz - 300 MHz
  • The antenna can be easily hidden. whip is only 22 cm
  • Switchable FM notch filter
  • Omnidirectional reception
  • Compact and lightweight design
  • Perfect for mobile use
  • The supply voltage is 5 - 15V DC (max. 120mA) and can therefore be used with and USB Power bank

Technical Data

Feature Value
Frequency range 9kHz - 300 MHz
Gain + 3dB
Rod Length 22 cm
IP3 > +30 dBm Typ
IP2 > +50 dBm Typ
Impedance 50 Ohm
FM Notch Off:
- 9 kHz - 300 MHz (nom. 3dB Gain)
- 9 kHz - 52 MHz (nom. 3dB Gain)
- 88 MHz - 108 MHz (typ. -20 dB attenuation)
Housing 98 mm x 90 mm x 38 mm, IP65
Weight 0.12 kg
Power Supply 5 - 15 DC (typ. 20mA, 40mA max) 2.1 mm pin
Connector BNC
Operating temperature range -20 to +60 grd C
Antenna factor 0dB
under the following conditions:
- Frequency range: 9kHz - 50MHz
- Tolerance: +/- 1dB
- Mounting on a grounded mast of 1m height above ideal conductive ground
- Original radiator 22 cm whip
Scope of delivery - MegActiv MA305FT
- Power inserter
- 22 cm whip
- Manual
Options - Power supply with noise filter
- 40 cm rod
- Antenna mast mounting bracket
- Weather protection case
- Common mode noise filter
- Galvanic antenna isolator


A small E-Field antenna for the HF range.
Ideal for traveling or home
Additional FM filter