[AMRadio] Re: GB> AM vs SSB???


RBethman rbethman at comcast.net
Fri Apr 6 20:13:22 EDT 2007


> Actually, I've never thought Collins SSB sounded all that terribly good.
> The KWS-1 has a bit wider transmit filter than the other usual suspects, but
> in general, the transmit bandwidth is too narrow.  There are important audio
> queues in both the low end and high end (up to 4Khz or so) speech spectrum
> that are completely missing.  This isn't just a Collins problem -- I'm not
> singling them out to pick on.  And the typical receiver, with it's shiny 2.1
> Khz mechanical filter or equivalent, chops those important queues out even
> if they were being transmitted.
> 
> I am not a proponent (nor opponent, either) of high fi SSB, but you don't
> have to go too far beyond what is the politically correct norm to get a
> signal that can actually be well understood (per Bacon's point).
> 
> And of course there are other factors -- tuning errors, distortion products,
> a heavy hand on the "processing" control, what-have-you.  AM signals can be
> mushy and hard to understand, too. 
> 
> Grant/NQ5T

The KWS-1 has issues in that it transmits ONLY one sideband NOT both.

That is precisely WHY I passed by the one that was/is <eventually> 
available WITH the matching receiver.  Both are completely restored.

As such - it is a POOR example to cite for "AM vs SSB"

Bob - N0DGN




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