What is the useful SWR bandwidth without retuning? 73, Mike www.w0btu.com On Sat, Oct 26, 2013 at 1:54 PM, Jim F. <j_fitton at yahoo.com> wrote: > It is amazing that a 66' long counterpoise can be effective on 160m. ... > the SWR is low at 1.1:1 on 1.824 MHz. >