Denton:
First, the transformer may be "ringing" with square wave signals as a result
of the transformer secondary not being correctly loaded.
At my station, I connect direct from the sound card line IN/OUT to the Audio
In / Audio Out of the Omni VI+. No problem in adjusting levels with the
Mixer settings of the sound card and the MIC gain on the Omni VI+ runs about
9 o'clock which is normal. I use VOX to do the switching and get great
reports at about 35 to 45 watts output.
I find that most folks "over engineer" the project.
73
Bob, K4TAX
----- Original Message -----
From: "denton" <denton@oregontrail.net>
To: "Discussion of Ten-Tec Equipment" <tentec@contesting.com>
Sent: Saturday, May 28, 2005 6:36 PM
Subject: [TenTec] Omni vi plus input audio feed for psk
>I am currently using my omni vi plus for psk, with the output of the
> soundcard going to an audio transformer to give me a good match to the
> audio
> input jack in the back of my Omni....on the air reports indicated good imd
> at 40 watts out of the rig at -31, but sometimes I get a ringing report
> and
> indication of minor sidebars.
> What I want to do is bypass the mic audio amp to give me much better
> linearity for the various soundcard modes.
>>From examining the schematic and its adjoining criteria, it seems that I
>>can
> feed the audio out from the soundcard directly to the input of the
> balanced
> modulator, with appropriate filtering and limit the output of the rig to
> about 35 watts or so.
> Any thoughts on this?? thanks...
> ----- Original Message -----
> From: "John L Merrill" <jmerrill1@adelphia.net>
> To: "Discussion of Ten-Tec Equipment" <tentec@contesting.com>
> Sent: Saturday, May 28, 2005 4:03 PM
> Subject: Re: [TenTec] SSB recieve audio?
>
>
>>I have a MkV Field and an FT1000D and with internal or external speaker
>> they sound better to my inner or outer ears than my on the chopping
>> block Orion with external and internal speaker. The OmniVI+ with the
>> audio mod in it sounds better than an Orion.
>>
>> John N1JM
>>
>> denton wrote:
>>> Wonder how the Orion's SSB audio sounds compared to an Omni VI??
>>> For some reason, to my ears, my FT990 seems to sound better than my Omni
>>> VI
>>> on ssb.
>>> ----- Original Message -----
>>> From: "John L Merrill" <jmerrill1@adelphia.net>
>>> To: "Discussion of Ten-Tec Equipment" <tentec@contesting.com>
>>> Sent: Saturday, May 28, 2005 2:51 PM
>>> Subject: Re: [TenTec] Propm RX
>>>
>>>
>>>
>>>>I have an R4A I've been repairing here on the bench and with the same
>>>>speaker, it sounds better than the Orion :-).
>>>>
>>>>John N1JM
>>>>
>>>>Grant Youngman wrote:
>>>>
>>>>>
>>>>>>I agree. The receive audio is lousey on the Orion.
>>>>>
>>>>>
>>>>>Maybe you just need a decent speaker. Or perhaps your inner ear needs
>>>>>some
>>>>>work :-)
>>>>>
>>>>>The Orion has excellent SSB receive audio, as good or better than any
>>>>>HF
>>>>>rig
>>>>>I've used (many, new and old), and generally requires little in the way
>>>>>of
>>>>>receive EQ. I do much prefer it with a little more than the usual
>>>>>bandwidth
>>>>>(say around 3 Khz or so), but that's no different than most radios
>>>>>which
>>>>>sound like cr*p at the typical narrow bandwidths everyone want to use.
>>>>>
>>>>>Of course, it would benefit greatly from a pair of P-P 6V6's in the
>>>>>output
>>>>>stage, but I doubt that's in the plan :-)
>>>>>
>>>>>Grant/NQ5T
>>>>>
>>>>>
>>>>>_______________________________________________
>>>>>TenTec mailing list
>>>>>TenTec@contesting.com
>>>>>http://lists.contesting.com/mailman/listinfo/tentec
>>>>>
>>>>
>>>>_______________________________________________
>>>>TenTec mailing list
>>>>TenTec@contesting.com
>>>>http://lists.contesting.com/mailman/listinfo/tentec
>>>>
>>>>
>>>
>>>
>>>
>>> _______________________________________________
>>> TenTec mailing list
>>> TenTec@contesting.com
>>> http://lists.contesting.com/mailman/listinfo/tentec
>>>
>> _______________________________________________
>> TenTec mailing list
>> TenTec@contesting.com
>> http://lists.contesting.com/mailman/listinfo/tentec
>>
>>
>
>
> _______________________________________________
> TenTec mailing list
> TenTec@contesting.com
> http://lists.contesting.com/mailman/listinfo/tentec
>
_______________________________________________
TenTec mailing list
TenTec@contesting.com
http://lists.contesting.com/mailman/listinfo/tentec
|