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Re: [TenTec] Omni VII Digital

To: Discussion of Ten-Tec Equipment <tentec@contesting.com>
Subject: Re: [TenTec] Omni VII Digital
From: Brian Carling <bcarling@cfl.rr.com>
Reply-to: Discussion of Ten-Tec Equipment <tentec@contesting.com>
Date: Wed, 13 Aug 2014 10:03:58 -0400
List-post: <tentec@contesting.com">mailto:tentec@contesting.com>
Not with digital sigs 

Best regards - Bry Carling



> On Aug 13, 2014, at 9:13 AM, "Gary - AB9M" <glhuber@msn.com> wrote:
> 
> Can you get the OMNI-VII to produce 100W via the Tune / PWR  buttons on the 
> frequency of interest and antenna used?
> 
> 
> 73 & DX,
> 
> Gary - AB9M
> 
> -----Original Message----- From: Louis Ciotti
> Sent: Wednesday, August 13, 2014 8:00 AM
> To: bcarling@cfl.rr.com ; Discussion of Ten-Tec Equipment
> Subject: Re: [TenTec] Omni VII Digital
> 
> You should be getting way more power out that 20-30 watts.  something
> is just wrong....   you should be able to full power out in the
> digital modes.  Granted some of them there is totally not a need for
> full output power like PSK-31, JT65, etc.  At then end of the day if
> you are not able to drive the OMNI to 100watts with all the settings
> maxed out (both on the PC and the rig) something is wrong.
> 
>> On Wed, Aug 13, 2014 at 7:52 AM,  <bcarling@cfl.rr.com> wrote:
>> It may be "fried" but I seriously doubt it. I was able to work into VK this 
>> morning on 40m
>> with JT65 and I am now getting 30 - 50 watts output.
>> 
>> The fault may be in the amount of signal WINDOWS 8 is allowing to come out 
>> of the laptop.
>> 
>> I am trying to find if there is some level that is pulled down but 
>> everything I see is at 100%
>> 
>> So far so good. I don't want to get 100 watts out and I think that I 
>> probably don't want any
>> ALC action while running digital modes. The speech processor actually helps  
>> alittle in my
>> case.
>> 
>>> On 12 Aug 2014 at 23:12, Bob McGraw - K4TAX wrote:
>>> 
>>> The Omni VII does not have low gain.  But it seems yours has a defective
>>> LINE INPUT.  I can run mine at 25% and raising the level up on the computer
>>> I get 100 watts of data output, well into ALC range.
>>> 
>>> Sorry Brian, but from what you say, your LINE INPUT circuit is fried. This
>>> is also evident from your findings that it works OK with the FT857 but not
>>> the Omni VII.  In doing a bit of research on the FT857D I find the audio
>>> levels for the two radios are very close to the same values.
>>> 
>>> 73
>>> Bob, K4TAX
>>> 
>>> 
>>> 
>>> 
>>> ----- Original Message -----
>>> From: <bcarling@cfl.rr.com>
>>> To: "Louis Ciotti" <lciotti1@gmail.com>; <tentec@contesting.com>
>>> Sent: Tuesday, August 12, 2014 10:49 PM
>>> Subject: Re: [TenTec] Omni VII Digital
>>> 
>>> 
>>> > Nothing is smoked. The Tentec just has VERY low gain on that aux input
>>> > when used in USB
>>> > mode unfortunately.
>>> >
>>> > If I run everything flat out, I can make contacts. OMNI VII Line Gain > 
>>> > 100%
>>> > Software level at maximum. Laptop gain 100% and OMNI VII Power set for > 
>>> > 100
>>> > watts.
>>> > If I run the speech processor at 40 - 50 I can make more power and more
>>> > contacts.
>>> >
>>> > It works. It just doesn't work very well compared to an FT857D.
>>> >
>>> > If I turn the Keying loop back, on I can use my Centurion amp and get > 
>>> > 30 -
>>> > 100 watts out
>>> > depending on the audio frequency. The laptop produes a peak around 2 > kHz
>>> > which isn't
>>> > unusual. With everything flat out 100% I can sometimes now get 20-30 > 
>>> > watts
>>> > out of the radio
>>> > that way. Not  great but it will do for now.
>>> >
>>> > On 12 Aug 2014 at 23:12, Louis Ciotti wrote:
>>> >
>>> >> On Tue, Aug 12, 2014 at 7:38 PM,  <bcarling@cfl.rr.com> wrote:
>>> >> > I don't think it's the signal levels unless there is a bad >> > 
>>> >> > connection
>>> >> > insid ethe Easy-DIGI or her
>>> >> > connected it to the wrong pin on the ACC1 cable.
>>> >> >
>>> >> > There is plenty of audio coming out of the laptop.
>>> >> >
>>> >>
>>> >> Sounds like you are using the speaker output connection, typically
>>> >> this output well above line level voltages (I am guessing here since I
>>> >> have never probed the outputs on a laptop).  I am placing my bet on
>>> >> one of two things...  either something is wrong with the interface or
>>> >> you damaged something in the audio input circuitry.  It sounds like
>>> >> you are able to use this interface with another radio.  If so then
>>> >> something is smoked in the Omni audio input.
>>> >>
>>> >> Sounds like tou have access to an oscilliscope.  Open up the interface
>>> >> a probe the audio on one side of the isolation transformer (the wire
>>> >> maked PC input) and compare that to the output side of the isolation
>>> >> transformer.  Report the peak-to-peak values back.  Then probe pin 1
>>> >> on the interface connector.  Should match the output side of the
>>> >> isolation transformer.  If possible I would sent it a constant
>>> >> frequency tone.  that way you can get a nice sine wave to see on the
>>> >> oscilliscope.  If all is good there then it is pointing to something
>>> >> in the radio.
>>> >>
>>> >> Lou
>>> >> K2LRV
>>> >
>>> >
>>> > _______________________________________________
>>> > TenTec mailing list
>>> > TenTec@contesting.com
>>> > http://lists.contesting.com/mailman/listinfo/tentec
>>> >
>>> 
>>> 
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>> 
>> 
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