Mod.D2T is a directional antenna produced by GIOVANNINI in Vicchio ( Florence ). It is composed of two modest- dimension elements covering all, really all, amateur waves of frequency HF from 1.8 to 30 MHz and VHF from 50 MHz up to 200 MHz.
It is an ideal antenna, the dream of very many radio-amateurs, and not only.
Technical data
High-impedance non-resonant antenna composed of two dipoles folded-up fed and 180° dephased with resistive non-inductive termination and broad-band RF transformer for feeding with 50 ohms cable. It shows a bi-directional directivity just starting from 10 MHz with 10 db F/S. At 21 MHz it gains 3 dbd with 5 db F/B and 10 db F/S to reach a progressive gain of 6 dbd at 30 MHz with 5 db F/B and 20 db F/S. In VHF it presents a daisy-type irradiation lobe. The signals transmitted and received up to 15 MHz are attenuated according to what is shown on the yield graph.
Max applicable power:
1 KW PeP 1.5 – 80 MHz
500 W PeP 80 – 200 MHz
Continuous bearing, RTTY, CW, etc.:
100 W 1.5 – 2.5 MHz
200 W 2.5 - 4 MHz
400 W 4 - 10 MHz
500 W 10 - 30 MHz
250 W VHF
Connector : SO 239
Rotation radius : 3.6 m ( 11.8 ft )
Mast joint : 40 to 50 mm ( 15/8 to 2 in. )
Max wind speed : 150 Km/h
With 3 mm ice sleeve : 90 Km/h
Employment temperature:
1.5 – 10 MHz : -30 + 25 °C
10 – 200 MHz : -30 + 40 °C
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