[Amps] Audio BW -- Please just let us operate!!

[R.Measures]

On Aug 27, 2004, at 7:18 AM, Will Matney wrote:

> Dale, and everyone else on the reflector,
>
> I would like to hear a debate about using so called speech processors. 
> To my understanding, they're just an amp running almost wide open with 
> clipping. The makers of these amps "claim" that they will not cause 
> splatter, then every OP I've heard say they do. So which is it, the 
> pros and cons?

A problem with speech processing is that using one is a tacit admission 
that one's equipment is too small.  Another problem is the feculent 
sound they produce at the Rx end.
>
> Will Matney
>
>
> The worst spectrum hogs are those that overdrive their amps and AM 
> with modified speech amps.  The splatter is awful.
>
> Dale
>
>
> On Aug 27, 2004, at 7:36, Steven Grant, W4IIV wrote:
>
>
>>> hey Joe
>>>
>>> the issue is not the bassiness itself, the issue is that bass uses 
>>> up so much power.
>>> i cannot copy a bass boosted signal at S-9
>>> the op has to boost his high end so his "audience" can copy him, so 
>>> in this case we have 2 issues: 1) splatter caused by all that bass  
>>> 2) increased hi frequency components that do make the signal wide
>>>
>>> steven    W4IIV
>>>
>>> Joe Isabella <n3ji at yahoo.com> wrote:
>>> I decided to break this out separately because I've heard this same 
>>> story over and over and over
>>> again. Anyone running some extended low-end content is "wide". I 
>>> already stated this before, but
>>> "bassiness" does not = wide bandwidth. If any of you don't 
>>> understand that the higher frequencies
>>> (in a properly adjusted transmitter) are the only way that a signal 
>>> is "wideband", and that highly
>>> compressed, overdriven audio (often heard during contest periods or 
>>> DX-peditions) can be twice as
>>> wide a 6k SSB signal, then I suggest you go back and study radio 
>>> theory. Don't make comments
>>> without ID'ing, or make gross noises during my QSO -- I may very 
>>> well be running 3k audio with
>>> some enhanced low frequency content, not any wider than you. My EQ 
>>> settings (which are stored in
>>> memories) and my rig's TX BW setting compliment each other. I don't 
>>> try to cram "10lbs. of audio
>>> in a 5lb. radio", as many of you think. What can be accomplished 
>>> with a little patience and some
>>> experimentation is truly outstanding audio that's narrower than 
>>> "overdriven contest audio", even
>>> if you only run 3kHz. I typically run a little more than that (about 
>>> 3.2), and I will continue to
>>> do so (try and measure it over the air -- I think you'll find it 
>>> difficult). I have spent less on
>>> my audio gear (about $400) than many of you spent on a couple mics. 
>>> I can mimic Heil's HC-4,
>>> HC-5, or Goldline with a flick of an EQ setting, and still ends up 
>>> sounding much better due to the
>>> external adjustable compression, downward expander, and customized 
>>> EQ'ing.
>>>
>>> Oh and BTW, I haven't even TOUCHED my rig as far as modifications. 
>>> The audio isn't going directly
>>> to a "balanced modulator", it enters the rig and follows the same 
>>> path it would if I just plugged
>>> a mic into it (straight into the audio CODEC, via a couple audio 
>>> pre-amps). So don't give me that
>>> garbage about "hacked rigs" or "ripped out filters". That's another 
>>> myth.
>>>
>>> I'm on vacation in the Keys -- just got here today. Sorry to stir 
>>> the pot like this, but I just
>>> can't stand to see inaccurate information and obviously emotional 
>>> opinions without substantiation
>>> go unanswered. You got spectral plots (from a *REAL* spectrum 
>>> analyzer, not these garbage
>>> "bandscopes"), show me -- if not, you're trying to push up a rope. 
>>> You won't hear from me for a
>>> few days. Have a great weekend!! Now, where's my beer...
>>>
>>> Buenos Nachos!! Joe,
>>> N3JI
>>>
>>>
>>>
>>>
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>>>
>>> STEVEN GRANT    W4IIV
>>> 		
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>>
>
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>
Richard L. Measures, AG6K, 805.386.3734.  www.somis.org