I'm sort of curious about what Flex is doing with their new radio. The
heart of it has to be a very good A/D converter, but the best thing I'm
aware of is an Analog Devices 16 bit, 100 Msp/s one that ain't exactly
cheap. To approach the dynamic range in the KX3 and the K3, 16 bits may
be a might short.
I, too, believe that direct sampling and high dynamic range is still a
bit off particularly if you want to be able to afford one. I like the
magic of my KX3 when used with NaP3 and a 24 bit, ASIO compliant sound
card. As a practical matter, it serves for the 95% situations. those
last five will include a lightning storm over my house or someone like
W3LPL moving next door.
73,
Barry
K3NDM
On 3/13/2013 9:49 AM, Wayne Burdick wrote:
No need to speculate. There is no such project underway at Elecraft.
Direct RF-sampling receivers, for all their technology, still lag well
behind the K3 in blocking dynamic range, and probably will continue to
for years to come. We're quite happy with our superhet architecture.
Also, any advancement we make to the K3 will be retrofittable to
existing K3s, so your investment is safe.
73,
Wayne
N6KR
On Mar 12, 2013, at 8:04 PM, Bob Schumacher wrote:
Given the advances in direct RF sampled SDRs (currently available
QS1R, soon to be released Flex-6000, etc.), Elecraft must be quietly
working on on an RF sampled K4 SDR. Maybe we will see an anouncement
in May at Dayton? I am wondering if I should take the leap with the
Flex or wait for Elecraft? I suspect that Elecraft will provide a
higher value solution. Any speculation on this point by Elecraft fans?
Thanks,
W9DBR
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