Whereas there certainly are reasons why wider bandwidths may be justified, the paragraph below, from the member, is simply technical nonsense. That is unless "greater bandwidth" implies that the frequency can be moved to one where good propagation exists, or there is no interference. 73, Dick, N6AA On 5/24/05, Bob Vallio <rbvallio@gmail.com> wrote:

Comments from a member re signal bandwidth proposal:

In a similar context, HF modulation constellations of wider bandwidth can be more robust during periods of poor propagation than a narrower signal for the same effective data rate. While the modulation schemes are still to be developed, greater immunity to noise, multipath and interfering signals can be obtained at the cost of greater bandwidth.