[Elecraft] Re： Elecraft K3 versus Yaesu FT-1000D

[Johnny Siu]

Hello Steve,

Although you will get  a different view if you post your thread in Fox Tango mail reflector, I would agree to all your findings..

Telecommunication technology is forever advancing.  The architecture and design principle between FT1000D and K3 are totally different.  At least, there is ONE major difference.  K3 employs dual conversion but FT1000D employs quad-conversion.

Although in the good old days, all the flagship HF rigs were using quad-conversion, more stages of I..F. do imply more birdies, internal noise and images.  

The advancement in IF DSP also gives more tight / shape factor for the IF filters.  The effectiveness / success of IF DSP will depend on:
1.  the speed of the DSP chip set;
2.  the skill of the designer to write effective + efficient firmware for the DSP

I have given up all my analogue transceivers for some time (except K2).

73

Johnny VR2XMC



----- 郵件原件 ----
寄件人﹕ Steve Ireland <vk6vz at arach.net.au>
收件人﹕ elecraft at mailman.qth.net
傳送日期﹕ 2010/1/10 (日) 1:39:19 PM
主題： [Elecraft] Elecraft K3 versus Yaesu FT-1000D

G'day



It has been interested in reading the thread about a (or some) 'big gun'
contesters still preferring the classic FT-1000D over the Elecraft K3.



I used to have two FT-1000Ds (sold an FT-1000MP to buy the first one - the
FT-1000D's audio peaking filter and nicer receive audio gave it the edge).
I sold the first FT-1000D to buy a K3 and then sat the two alongside each
other in a series of contests.  I have two keen contesters nearby - one
about 1km away and the other 10km away (which is a really nasty distance on
the low-bands).



The FT-1000D's blocking dynamic range (BDR) could barely cope, but with the
K3's BDR  and the 500Hz roofing filter I could not tell if the other blokes
were on the same band unless they came within under one kilohertz of me on
CW. On the FT-1000D, I could hear them 3 or 4 KHz away and it was impossible
to operate much closer to them than 2 to 3 KHz on CW, making me miss
stations regularly.



Within six months I had sold the other FT-1000D and have never regretted it.




The FT-1000D may look and feel a million dollars in comparison to the K3
(and is a great radio), but I know which one gets the job done better at my
QTH in a contesting situation.



Vy 73



Steve, VK6VZ


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