The M0CVO HW-20HP. This is an off centre fed dipole incorporating the M0CVO 4:1 balun at the feedpoint enabling it to be fed directly with 50ohm coaxial cable.
The M0CVO HW-20HP, 6 bands - 20, 17, 15, 12, 10 & 6m, no ATU, no traps, no losses will also work on 30m with an ATU. Big performance from a small footprint - only 10.14m in length mount as horizontal, inverted vee or sloper.
Now available in new MkIII format with improved tuning system, better bandwidth and lower SWR. The best just gets better!
VSWR is 1.4 on 20m, 2.8 on 17m, 1.1 on 15m, 1.0 on 12m, 1.0 on 10m and 1.5 on 6m.
As you can see, this is truly an antenna with a small footprint and high performance for the modern amateur.
Please also see the excellent review by Steve Nichols, G0KYA, in the January 2012 edition of RadCom.
The M0CVO HW-40HP is just 20.28m in length and will operate on 40, 20 and 10m without an ATU and 80, 60, 15, 6 and WARC Bands with an ATU.
The leg lengths (BALUN to end) are 6.76 and 13.52m respectively.
VSWR is better than 1.5:1 on resonant bands (40, 20 and 10m)