[Elecraft] Fwd: New Sherwood report

[Joe Subich, W4TV]

 > Given the recent discussion on the FT-5000's transmitted phase noise,
 > it would be nice to see if Bob could provide some independent testing
 > of transmitters as well.

Sherwood's testing already contains the necessary information on phase
noise ... see the LO noise column.   From the list, no synthesized
transceiver (Perseus is a receiver only) comes anywhere near close to
the K3.

73,

    ... Joe, W4TV


On 12/1/2010 5:48 PM, Nate Bargmann wrote:
> * On 2010 01 Dec 16:19 -0600, Ed Schuller wrote:
>>
>>
>>
>>   http://www.sherweng.com/table.html
>
> I understand that Sherwood places a lot of emphasis on 2 kHz BDR.  While
> that is a worthwhile measurement, I am concerned more about the Filter
> Ultimate (dB) column.  Not only being 15 dB poorer than than the K3, note
> also that the FT-5000 is phase limited in this regard.  It will take
> someone more educated than I to tell us what that means in practical
> terms, but it is one glaring difference between two radios that appear
> to be almost identical.  Also, the FT-5000 being 13 dB poorer in the 100
> kHz BDR column is also glaring and perhaps telling.
>
> Given the recent discussion on the FT-5000's transmitted phase noise, it
> would be nice to see if Bob could provide some independent testing of
> transmitters as well.
>
> At the end of the day it would appear that the Yaesu engineers have done
> their homework in some areas but left room for improvement.
>
> 73, de Nate>>
>
> P.S.  My K3 is staying put.  :-)
>