[TenTec] Latest Sherwood Numbers (was Jones Filter)

[Rick Williams]

Thanks for the link Bill.

The old Omni V looks pretty good.  I wonder if Sherwood will look at the
Omni V and Omni VI with the soon to be available InRad roofing filters!!

73,

Rick
VE7TK

Website:  http://www3.telus.net/ve7tk



>Date: Thu, 07 Oct 2004 12:27:45 -0400
>From: Bill Tippett <btippett at alum.mit.edu>
>Subject: [TenTec] Jones Filter
>To: tentec at contesting.com
>
>> ---- snip -----
>
>         Orion's exceptional close-in phase noise is truly one of its
>major advantages.  When looking at very close-spaced IMD and BDR
>performance, phase noise often becomes the limiting factor in other
>synthesized rigs.  Rob Sherwood just updated his website which shows
>both the Elecraft K2 and IC-7800 being phase noise limited at 2 kHz.
>Their actual IMD performance is probably much better than the 80 dB
>posted, but it becomes masked by close-in phase noise performance.
>
>http://www.sherweng.com/Dayton_2004/Dynamic_Range_Data.pdf
>
>Phase noise limitations at close spacings was also apparent in both
>ARRL and RSGB Product Reviews of the IC-7800 done earlier this year.
>
>         Orion's phase noise performance is truly phenomenal and it is
>very unlikely other rigs' phase noise can be improved much without a
>complete redesign.  Congratulations to Lee Jones on a truly significant
>achievement!  I only hope whatever he has done is patented.
>
>                                                 73,  Bill  W4ZV
>