I guess it depends on a couple of things. First, what kind of microphone
are you using? Mics like the PR-40 sound excellent for ESSB, but to use it
for contesting requires a lot careful settings where something like an HC-4
element is pretty good for contest and DX work with just flat settings on
the Orion.
Next thing is what you're using the radio for. For big-signal, low-band
rag-chewing, you want a fuller, smoother sound. For that, I run a PR-40,
flat EQ setting in the Orion, LF at 80 Hz and BW to 3900, no speech
processing. For busting a major pile-up or contesting you want narrow,
focused, highly compressed/limited audio. For contests, I use an HC-4, EQ
on -10, LF at 250 and BW at 2700, SP at 7 and drive the audio hard!
For "general purpose SSB" I would probably use the HC-4 with no EQ, LF at
150, BW 3000 and no SP, or the PR-40 with EQ at -6, LF at 200, BW 3000 and
no SP. For weak conditions, SP at 4 or 5 would help.
Ron N6IE
www.N6IE.com
----- Original Message -----
From: "Martin Sole" <msole@loxinfo.co.th>
To: "'Discussion of Ten-Tec Equipment'" <tentec@contesting.com>
Sent: Saturday, March 14, 2009 5:03 AM
Subject: [TenTec] What sort of bandwidth do you like?
This is a question related specifically to voice modes (SSB) and in
particular comes down to the sound of Orion. It is not about how much
bandwidth you like as no doubt we all find that varies with the specific
conditions at any given time. Rather it relates more to the shape of the
passband you might find best. Personally I find that the fairly well worn
and acknowledged 300Hz to 3kHz is about the ideal under most
circumstances.
I can manage with less and appreciate it when the conditions are rough,
preferring something a little more focussed toward the higher end and
going
as far as 500Hz to 2.6kHz and maybe a little further in some extreme
cases.
But in all cases I like it to be reasonably flat in the passband with a
regular and defined roll of outside of those limits.
Ever since I got my Orion I have been running the Rx Eq at fairly high
negative values -16dB to -20dB but have always felt that this is not doing
what I want. Recently I have started to do things differently, and with
startling results, to my ears at least. Appreciating that we all have
different hearing characteristics I would be interested to hear what sort
of
audio spectrum shape you like to listen to for radio work.
Regards
Martin, HS0ZED
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