On Sat, Feb 26, 2011 at 5:57 PM, <kc9cdt@aol.com> wrote:
> I think one of the reasons the Drake R-4B, Hallicrafters SX-117 and
> many others are beter in a noisy condition is simply they do not have
> all the high frequency respnse in the audio, or maybe it is the tube
> amp??. I wish there was a HF cutoff on the OII, full EQ like Bob Heil
> recommended day one to TT way back may have helped.
No high frequency cutoff on the Orion II? Between Hi Cut, BW, and PBT
why aren't you able to cutoff high frequencies?
Barry N1EU
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