Tom's comment below -
For an example of the VSWR bandwidth achievable in an HF design,
check the antenna described at this link
http://www.tcibr.com/PDFs/613tfwebs.pdf. Nominal input VSWR is 2:1 from
2-30MHz . No input tuner is used.
Good VSWR bandwidth in an antenna is not limited to VHF and above.
RF
Visit
http://rfry.org for FM broadcast RF system papers.
______________________
"Tom Bruhns" wrote
Just because one person wants to use a tuner, and
retune after any QSY greater than 20kHz doesn't mean
another who wants to use a broadband system should
be discouraged from doing so.