[TenTec] Forwarded to List

[Jim Lowman]

> Is there any simple explanation about why the OMNI V and VI
> are known to be "quiet" receivers relative to the crystal
> oscillators.  The rigs use a PL VFO, right?  Then they mix
> with crystal oscillators.  The "other" rigs (like Paragon)
> use PLL's in both VFO and oscillators and mix the signals
> like that.  This apparently causes extra noise.
> 
> Now, my question.  Does it matter whether the VFO is not
> PLL or the oscillator?  In other words, does my TS 830 share
> the nice noise characteristics with the OMNI since the
> VFO is not PLL, where the oscillators are?  (Opposite
> scheme to the OMNI.)  I have a VFO 230 VFO which would then
> make the 830 PLL/PLL combination.  Should this demonstrate
> "extra noise" in the presence of strong local signals?
> 
> Any thoughts appreciated.
> 
> Clark
> WA3JPG

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