On 6/20/2013 10:32 PM, Bob Gibson wrote:
Hi Fellows. I have a new Orionll and I just cannot get the audio right...
I'm using a Behringer B-1 Mic and a VX2000...
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My thoughts parallel what the others are
saying, and I wonder, just early one, are
you playing the B-1 and Behringer processor
through the Orion II microphone input? That
is one sure fire way to overdrive the mic input
and that often yields comments about having RF
on the microphone.
On the Sunday afternoon TT equipment, Lloyd said
I had RF on my mi input, but it was only that I
had forgotten to change the mic input setting
after changing headsets from one with relatively
low output to one with rather high output.
Adjusting the mic input yielded sufficient
correction to receive compliments on my audio from
Lloyd just a few minutes later. Once I tamed the
mic input gain, I used stock default settings and
those always net me compliments on my transmit audio.
Similarly, for the Orion II - on Field Day the guys
borrowed an Orion II and were getting complaints
and snide remarks about their audio - until I
showed the guys how to reset the entire radio
to factory defaults (der...I just showed them the
blip on it in the user manual...)
I also have a B-1 microphone, and as Bob suggests,
that type of large diaphragm studio microphone
is often very sensitive, and as another ham once
put it, they "pick up the sound of a gnat's sneeze
from across the room" - meaning, of course, they
pick up every sound in the room, including the
sound of cooling fans, and are much harder to
effectively close-talk than other types.
When "close-talking" the microphone, the rig
tends to pick up the sound of your voice, but
not so much ambient noise in the shack.
Heck, even Bob Heil, recommends using a hand-held
performance type dynamic dynamic microphone
cartridge for this same reason.
Moreover, I worry the VR-2000 processor may
be over driving the audio input channel -
perhaps the settings that worked for your
previous rig are too aggressive and too HOT
for the new one. I presume you are using the
Line-In audio input channel on the rig, and
if not, that is a sure fire way to over drive
the mic input channel. (Although I presume
you know this... so I mention it just to be
sure.)
I am convinced one can obtain really good
transmit audio without external audio accessories.
You can prove this by listening the many guys
checking into the TT equipment owner's net on
Sunday after noon who use regular, plain Jane
microphones and stock audio settings on the
rig, alone.
Consequently, I agree you should remove the
VR-2000 (or at least only use the mic preamp
feature) and look to reduce the Line-In input
gain, and reduce the pre-amp output signal
strength, using factory stock settings, until
you find a level that does not over drive the
rig. THEN you can work in any other features
you like, once you know the optimal signal
strength that produces clear transmit audio.
I also suspect it would be a lot easier to
verify the rig is OK by using a regular,
plain Jane hand held microphone connected to
the front panel mic input, than to use the B1
and the preamp on the processor unit. You can
work back form there once you achieve clean
audio output from a simple setup.
Just MY take...
--------------------- K8JHR ------------------
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