[TenTec] Distortion SSB Omni VII

[Roger Wise]

Carl, I  only get distortion from the live mic.  Not from the program 
messages.  Only when I go live.  Don't figure. Thanks Rog
----- Original Message ----- 
From: "N4PY2" <n4py2 at earthlink.net>
To: "Discussion of Ten-Tec Equipment" <tentec at contesting.com>
Sent: Saturday, November 21, 2009 2:31 PM
Subject: Re: [TenTec] Distortion SSB Omni VII


> Did you try to lower the hardware mic gain control?  It is accessed 
> through
> a small hole on the bottom of the radio below the mic connector.  It is 
> very
> touchy and if too high it makes the software mic gain very difficult and
> touchy to adjust.
>
> Carl Moreschi N4PY
> 121 Little Bell Drive
> Hays, NC 28635
> www.n4py.com
>
>
> ----- Original Message ----- 
> From: "Roger Wise" <jrwise at hbci.com>
> To: "Discussion of Ten-Tec Equipment" <tentec at contesting.com>
> Sent: Saturday, November 21, 2009 3:20 PM
> Subject: Re: [TenTec] Distortion SSB Omni VII
>
>
>> Jim , I even connected the mic direct to the Omni VII with same results.
>> Drive level was brought down to zero and then brought up to a low level
>> and
>> still same results.
>> Thanks
>> ----- Original Message ----- 
>> From: "Jim Brown K9YC" <k9yc at audiosystemsgroup.com>
>> To: "Discussion of Ten-Tec Equipment" <tentec at contesting.com>
>> Sent: Saturday, November 21, 2009 12:24 PM
>> Subject: Re: [TenTec] Distortion SSB Omni VII
>>
>>
>>>
>>>>Attatched ground leads
>>>
>>> Grounding is probably barking up the wrong tree unless something is
>>> really wrong with your antenna system.
>>>
>>> The most likely cause is the live mic over-driving the electronics
>>> that it is connected to. In other words, you need to turn down the
>>> gain of that input stage a LOT.
>>>
>>> I don't know the Omni VII, so can't offer more specific advice. But
>>> Ten Tec rigs in general have always had very good audio inputs.
>>>
>>> One of the guys in our contest club (NCCC) recently organized a
>>> group purchase of Yamaha CM500 headsets with attached mics. These
>>> are very nice, and also quite inexpensive (about $40), but the mic
>>> signal comes out very "hot" (that is, much nigher level than most
>>> mics). This required us to readjust the audio inputs of our rigs so
>>> that we didn't overdrive them.
>>>
>>> The CM500 mic also has excellent EQ for communications use, and
>>> sounds MUCH better than most Heils I've heard. The SSB SS weekend
>>> will be the first serious test of these headsets for most of us.
>>> Hopefully we'll still like them after 24 hours on the air. :)
>>>
>>> 73,
>>>
>>> Jim K9YC
>>>
>>>
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>>
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