If we want real frequency stability, here is what is needed:
http://www.bliley.com/n47x___nv47x___co_08.pdf
I wonder if TT would be willing to order a few of these custom since a
volume purchase would be needed, and offer them as an option on new units
and a mod to existing units? It would require a simple board to solder to
the existing circuit board, but there is plenty of room to accommodate it.
They could also add a trim pot on the board to fine calibrate if the 'EFC'
version is used. Imagine having frequency stability and accuracy to one
part per 10 million and 10 dB better phase noise, too!
I'd pay $200-$300 for that, which would build in a fair profit for TT if
more than a couple dozen were sold.
Ron N6AHA
----- Original Message -----
From: "Sinisa Hristov" <shristov@ptt.yu>
To: "Discussion of Ten-Tec Equipment" <tentec@contesting.com>
Cc: <techtopics@tentec.com>
Sent: Tuesday, August 08, 2006 12:04 AM
Subject: Re: [TenTec] Orion II - Tech Topics
> Bill Tippett wrote:
>
>
>> Two topics already covered are regarding
>> Tuner Memories and Frequency Stability.
>
>
> I do love my Orion deeply and truly, but nevertheless I find
> the persistence of the "Frequency Stability" hoax unbelievable.
>
> It appears now in three places: on the Orion II page,
> in the manual and on this new "Tech Topics" page.
>
> Gentlemen who design such a fine radios should not indulge
> themselves in propagating such a nonsense. The truth is very simple:
> Orion's (be it Classic or II) frequency stability does NOT
> depend at all on the "mixing architecture".
>
> Stated generally, with all LOs locked to the same reference,
> ANY mixing architecture is equivalent to a single stage mixing
> with an equivalent LO frequency, and the output frequency drift
> is equal to the drift of that equivalent LO.
>
> The change of the mixing scheme in Orion II may have some
> virtues, but the stability improvement is NOT one of them.
>
>
> 73,
>
> Sinisa YT1NT, VE3EA
> _______________________________________________
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> TenTec@contesting.com
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>
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