I have also found that the Heil headsets are a little too broadband for =
amateur communications work but I've found a very effective solution.
I route my headphone audio through an AMCOM (1-888-803-5832) ClearSpeech =
Digital speaker. (Model CSS-1) The results are remarkable. Often it =
sounds like the band is dead as there is no noise whatsoever unless you =
are receiving a station. There is a minimum amount of digital ringing =
on strong signals which can be controlled by reducing the receiver gain. =
I have frequently found that a station is Q-5 through the CSS-1 and =
simply not there without it.
On the TI9M DXpedition I found that I could cascade the CSS-1 with the =
DSP noise reduction in the ICOM 756 PRO II and have total noise silence =
on 160 meters. This let me copy stations that were so weak that they =
only hissed in the headphones. Without the full cascaded system they =
simply weren't there. It also allowed much better discrimination =
between tones when pulling stations out of pileups.
Larry
N7DF
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