[TenTec] Omni VI Plus audio

[Fraser Robertson]

Our club's Omni6+ option3 sounds very different on USB and LSB, and it's not possible to correct it by adjusting the BFO frequencies, so it must be down to the filter being asymetrical.  I understood that was a common failing, but perhaps our filter is faulty?
 
73 Fraser G4BJM
> Date: Sun, 16 Mar 2008 18:37:51 -1000> From: ken.d.brown at hawaiiantel.net> To: tentec at contesting.com> Subject: Re: [TenTec] Omni VI Plus audio> > > > Now I don't know why the higher bands are different on your rig.> > Wonder if you have an antenna problem? > >> > > If the SSB Receive (or transmit) audio sounds different on 10, 15, 20 > meters than it does on 40, 75 meters, you should be comparing the sound > on USB versus LSB. Your SSB audio characteristic should not change at > all due to changing bands, other than because of the convention of using > USB above 9 MHz and LSB below 9 MHz. The audio characteristics also > should not change very much from USB to LSB. If it does change, that is > an indication that your BFO frequencies are misaligned for one or both > SSB modes. Another possibility, although not nearly as likely, is a > partially failed crystal filter with a non-symmetrical passband shape. > The first thing to do is check the BFO frequencies. If you install new > filters, of any brand, without getting the BFO frequencies right, you > will still have a problem.> > DE N6KB> > _______________________________________________> TenTec mailing list> TenTec at contesting.com> http://lists.contesting.com/mailman/listinfo/tentec
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