I think they also added low frequency coverage.
Barry N1EU
On Sun, May 17, 2015 at 4:49 AM, Jim Brown <k9yc@audiosystemsgroup.com>
wrote:
> On Sat,5/16/2015 3:04 PM, Duane Calvin wrote:
>
>> What's different in the K3S from the K3?
>>
>
> Here's my take on it, after studying what Elecraft says on their website.
> (I didn't go to Dayton).
>
> New I/O board, solving a shortcoming with the original K3 and adding USB
> control and audio I/O via USB, new Synthesizer board, making a significant
> improvement in phase noise and also making the RX work very down to 100
> kHz. Improved audio from the speaker. Integrated RX preamp improves
> performance on 6M, 10M, 12M.
>
> The original K3 needed an outboard preamp for 6M, and the ARR GasFET I
> bought in 2004 also helps on 10M. The new preamp solves that, and is built
> in. The original K3 was best of class for phase noise in 2008 when it was
> introduced, but some of the newest radios were better. The new Synth board
> puts it back in the lead. This matters mostly in contesting, and in
> multi-transmitter setups like Field Day.
>
> The Synth board and I/O board are low cost add-ons for the K3. So for
> about $420, I can bring a 7 year old radio up to 90% of the new K3. Add
> $210 if you have the 2nd RX. It took 20 minutes to trade the new Synth
> board for the old one. I have the I/O board on order.
>
> To put this in perspective, the Synth board upgrade alone is roughly like
> upgrading from the Orion to the Orion II, and it costs $210, $420 if you
> have the second RX.
>
> 73, Jim K9YC
>
>
>
>
>
> _______________________________________________
> TenTec mailing list
> TenTec@contesting.com
> http://lists.contesting.com/mailman/listinfo/tentec
>
_______________________________________________
TenTec mailing list
TenTec@contesting.com
http://lists.contesting.com/mailman/listinfo/tentec
|