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The Diamond WD-330J is a complete antenna built to professional standards. It is a Wide band folded dipole ( the same type used by the Military for frequency hopping) and is designed to operate from 1.8 MHz to 30 MHz continuously with SWR below 2:1 For transmitting the antenna can be matched on any frequency down to 1:1 SWR with an external ATU - but on the Amateur bands this should not be needed.
This antenna is power rated at 150 watts PEP and can be installed in horizontal form (flat-top), in "V" inverted or inclined with the lower end fixed to within 02m from the ground.
The Diamond D-330J is constructed from vinyl coated #14 copper wire and has an intermediate insulator cover protected with epoxy resin..
Antenna consists of :
S0-239 type connector, 2 x Insulators.
NOTE: WD-330 is the same antenna but with coaxial supplied.
Frequency range - 1.8 Mhz-30 Mhz
Power 150 w (PEP)
Impedance 50 Ohms
Length 25 m
SWR 2:1 (from 1.8 to 4.9 MHz)
SWR 1.5:1 (from 5 to 15.9 MHz)
SWR 2.0 :1 (from 16 to 30 MHz)
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