I did comparisons with my open wire fed inverted V W3DZZ and on 20 m: R5 = W3DZZ at 1500 km. The difference is very noticeable in SSB/CW DX pile-ups, but if I can hear them I can work them. Yagi only outperforms this antenna if the beam is pointed to the station. R5 a 5 band vertical on top of a 12 m mast. There were no signs of failure on the traps or matching unit. The vertical passed a test with a borrowed 1.5 kW amplifier with no-ill effect. The manual states that this shortened half wave radiator is suited for 1.8 kW pep power and that is remarkable for this type of 5 m-tall antenna. The antenna does not require traditional ground radials, so no need for unsightly radials and is so light a normal scaffold pole would be ideal to mount the antenna. The 17ft half wave vertical is covering the 10, 12, 15, 17, and 20m amateur bands. The quality of the R6 successors decreased, see Product Reviews on. Those "radials" are in fact a top hat capacitance. All are ½ wave radiators with 4 or shorter base-load rods. Cushcraft have made many vertical antennas R4, R5, R6, R6000, R7, R7000, R8 etc.
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