[TenTec] Omni VII Digital

[bcarling at cfl.rr.com]

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 at 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