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

[Will Matney]

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?

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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