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
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