Type End fed vertical
Frequency TX / 3.5 - 29 MHz
RX / 1.8 - 55 MHz
Power handling 300 watts pep
Impedance 50 Ohms
Connector SO-239
Length 5.4 meters
How it works:
The antenna is fed using 50 Ohm coax via a SO-239 socket at the base of the unit. A 6:1 UNUN transformer is located in an IP65 weather sealed box at the bottom of the bracket section of the fibre glass elements. The antenna comes in four parts, three fibreglass poles and one stainless steel tapered whip. The transformer reduces the impedance at the feed point to a more acceptable level making the antenna much more efficient and allowing proper and easy tuning via an external ATU and automatic ATU’s found in most modern radios.
The antenna can be grounded if the user experiences excessive local static noise, but as the UNUN is DC grounded, grounding will not affect the tuning ratios.
The Highlighted bands in the chart below will require a manual ATU, the others an internal ATU.
BAND ATU
80 m 1:3.1 (Manual ATU)
60 m 1:1
40 m 1:1
30 m 1:1
20 m 1:1
17 m 1:1 (Manual ATU)
15 m 1:1
12 m 1:1 (Manual ATU)
10 m 1:1
6 m 1:1 (Manual ATU)
