Return home

Shortwave Antenna

 Out of stock 

Return to Shortwave Antennas Index

Shortwave Antennas  
NTi logo



Specifications | System | Installation


The NTi MD300DX MegaDipolDX is a broadband, receive-only, active dipole with a maximum upper working frequency of 300 MHz. The dipole reacts to the electrical component (E-Field) of the electromagnetic field and will deliver best results regarding signal strength and SNR (signal-to-noise-ratio) at locations with little or no locally generated interference. The MegaDipol MD300DX is the ideal antenna for DXers. Particularly in electrically quiet environments, it can really play to its strength in efficiently amplifying weak signals. In practical operations, a maximum signal-to-noise ratio of 110dB was achieved! Nonetheless, the receiver to be coupled to this antenna should have a high enough dynamic range so that it can effectively process the received signals. The antenna may be installed in several orientations: horizontal, vertical, V-shaped or L-shaped.

The MegaDipol system includes two flexible PVC-coated, seawater-resistant (V4A) stainless steel wires suitable for indoor or outdoor use. Two insulators are also supplied. It also comes with NTi CPI1000DP power inserter that has a green LED for power, and a red LED for short. This inserter accepts the 11-15 VDC power that will travel up the coax cable to power the antenna. The inserter features a BNC antenna jack for coax from the antenna element and a BNC jack output to the receiver. It features a jack for DC power input 11-15 VDC (max 120 mA).

Made in Germany. Click here to download the English manual.

Items supplied:
MD300DX Mega Dipol
CPI1000DP power inserter
Two stainless steel dipole wire elements 8.2 feet (2.5m) each
Black plastic insulators

The user must provide:
DC power source (USB or 11-15 VDC).
BNC cable from receiver to power inserter.
BNC cable from power inserter to the antenna.

Order # Photo Item Description Your Price Order
#6505 MAST BRKT Mast bracket for Boni-Whip, Mega Loop, Giga, etc. INFO $14.98 Order
  GI  300 Galvanic isolator INFO Discontinued
   GI1000 Galvanic isolator INFO Discontinued
#0821 DC PLUG DC Power Plug 2.1/5.5mm $1.19 Order
240U BB 50
BNC male to BNC male coaxial cable. 50 Foot.
Made with very low loss Times Microwave
LMR®-240-UF Ultra-Flex coaxial cable. INFO
BNC male to BNC male coaxial cable. 3 Foot.
Made with RG-8X coaxial cable. VIEW
#4616   COAX
CBL58 3'
BNC male to BNC male coaxial cable. 3 Foot.
Made with RG-58 coaxial cable.
$5.99 Order
CBL58 6'
BNC male to BNC male coaxial cable. 6 Foot.
Made with RG-58 coaxial cable.
CBL58 BP3'
BNC male to PL-259 coaxial cable. 3 Foot.
Made with RG-58 coaxial cable. VIEW
#2122 UG255 SO-239 (UHF) to BNC male adapter VIEW $3.95 Order
#2124 BNCF-PL259 BNC female to PL-259 adapter VIEW $4.95 Order

Copyright 2018-2023, Universal Radio, Inc.