Some plain facts about multiband vertical antennas
- There is considerable confusion as to what exactly a multiband vertical
antenna is. The confusion concerns the method of feed, how much mismatch one can expect, how many radials are required, how the particular antenna is built for multiband use, plus some other points.
IC706/FT817 portable whip antenna
- Suitable antenna for owners of an IC70
6 or FT817, 857 and other HF portable transceivers.
You can an be QRV in a few minutes on all ham-bands from 80m to 6m and even on 2m by PA0FBK
Vertical antenna for Vacation
Vacation Antenna for 80, 40 and 20 Meter-Band, by Herbert OE3BMB
This antenna is a full size λ/4 for 20m and 40m band, and a shortened λ/4 for the 80m band.
Generally on the 40m band the SWR is under 1,6. In 80m and 20m band at the resonant frequency the SWR is about 1,1.