Giovannini Elettromeccanica                                                       Antenna Systems for HF  -  Commercial  Products

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                                                          HF  Antennas

 HF/VHF Broad Band Directional Antenna

  
     
     

 

 

HF/VHF directional antenna Mod. D2T-M , 1.5 - 200 MHz

 

 

 

 

 

 

 

COMPACT ANTENNA SYSTEM FOR TACTICAL AND


FIXED USE

 

 

 

 

REVOLUTIONARY DESIGN - SMALL SIZE - IDEAL FOR

 

 RESTRICTED SPACES

 

 

 

 

 

 

 

 

 

HF Compact and light directional antenna suitable for operation covering medium to long distances.

 

 

Used for the transmission and reception of  horizontally polarized signals.                  

 

 

Frequency range: 1.5 - 200 MHz

 

 

  • 1.5 - 200MHz CONTINUOUS COVERAGE

  • NO TUNING REQUIRED

  • USES ONLY ONE 50 OHM COAXIAL CABLE

  • BOOM: 2m (6.6ft)

  • ELEMENTS: 6m (19.8ft)

  • WEIGHT: 6kg (13lb)

 

DESCRIPTION:
The D2T is a non-resonant high-impedence antenna, composed of two folded dipoles dephased by 180°. It has a non-inductive terminating resistor and broadband RF transformer fed with a single 50 Ohm cable. The D2T is bi-directional starting from about 10MHz with 10dB F/S. At 21MHz it gains 3dB with 5dB F/B and 10dB F/S, and progressively it reaches 6dB at 30MHz with 5dB F/B and 20dB F/S. At VHF it shows a daisy-type radiation lobe. Up to about 15MHz both the transmitted and received signals are attenuated (see the ‘Yield’ graph).

 

 

 

 

 

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  Giovannini Elettromeccanica "Antenna Systems" Via Enrico Mattei 9  50039 Vicchio ( Florence ) Italy     Phone: +39 3487804537         e-mail  
 

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BROADBAND ARRAY ANTENNA 2 MHz to 30 MHz Transmission and reception of horizontally polarized waves over medium to long distances The compact, rotatable HF Antenna D2T-M can be used for transmission and reception of horizontally polarized waves. Due to a transmission frequency range from 1.5 MHz to 200 MHz, the antenna is particularly suitable for communication over medium and long distances. Reception is possible from 1.5 MHz and thus covers all distances. The antenna has been optimized for small size. Despite the low limit of its frequency range, the D2T-M is no larger than any comparable antenna covering a range from 1.5 MHz to 200 MHz.