[TenTec] O2 Tx Audio

[Ron Castro]

Care to share your settings?

I tried running a frequency response test last night, and determined that 
there is no way to measure it on the O2 since, even at low levels of input 
it "hunts" for the signal and the output jumps up and down.  This may 
actually be a good thing for normal speech operating conditions, and this I 
know from broadcasting that you absolutely cannot do a frequency response 
test on a system without shutting down all devices in the chain that can 
dynamically effect the level.  TT may have designed some noise gate or level 
"hold" function similar to what broadcast stations use which would make the 
rig sound much better.  But broadcast processors have a "proof" switch on 
them that defeats all functions for testing, and that's not available on the 
O2.

Next best thing is a pink-noise generator and an audio spectrum analyzer 
hooked to a receiver with a known flat response.  If I had a spare $25,000 
laying around, I could do that :-)

Ron
N6AHA

----- Original Message ----- 
From: "Scott Harwood" <scotth at hsc.edu>
To: "on of Ten-Tec Equipment" <tentec at contesting.com>
Sent: Friday, March 03, 2006 4:40 AM
Subject: Re: [TenTec] O2 Tx Audio


>
> I have received nothing but compliments on my tx audio using Orion II and 
> Studio One mike.  As with almost everything else with the Orion II, it 
> takes some study and care setting it up.  I plugged a cassette recorder 
> into the monitor output and went through numerous settings of TxEQ, Low 
> Freq Cutoff and Speech Processing stating into the microphone what each 
> setting was while transmitting into a dummy load.  I then played the 
> recorder back through my home stereo with no sound (base or treble) 
> enhancement and selected the one that sounded the most natural for those 
> 75 meter rag chews, the most piercing and penetrating for dx pileups, etc. 
> I got the XYL to also verify the "natural" sound.
>
> Just a suggestion on what worked for me.
>
> 73 all
>
> Scott K4VWK
>
> ---------- Original Message ----------------------------------
> From: "Ron Castro" <ronc at sonic.net>
> Reply-To: Ron Castro <ronc at sonic.net>,Discussion of Ten-Tec Equipment 
> <tentec at contesting.com>
> Date:  Thu, 2 Mar 2006 19:45:12 -0800
>
>>Maybe they need to bring Doug Smith, KF6DX back for a consult.
>>
>>Ron Castro
>>Chief Technical Officer
>>Results Radio, LLC
>>
>>
>>----- Original Message ----- 
>>From: <Kc9cdt at aol.com>
>>To: <tentec at contesting.com>
>>Sent: Thursday, March 02, 2006 6:47 PM
>>Subject: Re: [TenTec] O2 Tx Audio
>>
>>
>>> Well, that's unfortunate, as I think they did a superb job in early
>>> testing.
>>> Really taking the place of a department for TT.
>>>
>>> Now TT is going to have to do a lot better on there own in QC and
>>> regression
>>> test and analysis. So far not so good IMHO.
>>>
>>> I'm still rooting for them, but ?????
>>> Maybe they need additional help with the programming (outside help)?
>>>
>>> Seems like more people are happier with the version 2 for Orion than OII
>>> right now.
>>> You would think the code (logic) would be the same with the exeption of
>>> drivers for the screen and maybe some differences in the filter chain.
>>>
>>> I vote for going back to 1.xxx  for OII and improving from there... I
>>> know...
>>> too late!
>>> Lee
>>> _______________________________________________
>>> TenTec mailing list
>>> TenTec at contesting.com
>>> http://lists.contesting.com/mailman/listinfo/tentec
>>>
>>>
>>
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>
>
>
>
>
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