[Elecraft] Wait For The K4 Direct RF Sampled SDR?

[Gary Gregory]

If it ran on Linux i would  be confident but running in a Windows
environment is a concern for me.
The annual licence fee is also a concern for me.
I guess we wait and see.

Gary
Vk1ZZ
K3, KX3, KPA500, KAT500,P3.
On 15/03/2013 7:24 AM, "Joe Subich, W4TV" <lists at subich.com> wrote:

>
> > I can't wait to see the Sherwood report on the 6000 series.
>
> Yes, it will be interesting.  I hope Rob can do some notched noise
> power testing to see just how well the performance holds up with
> real world receive power levels when the receiver is operated in
> its multi-band mode (separate, simultaneous receiver "windows" in
> multiple octaves).
>
> 73,
>
>    ... Joe, W4TV
>
>
> On 3/14/2013 5:03 PM, wb4jfi at knology.net wrote:
>
>> I love my K3/P3/SVGA and my KX3 as well.  I do want to mention that the
>> new Flex 6000 series uses a 16-bit A/D, with over 245Ms/s sample clock,
>> much better than 100Ms/s.  Processing gain is real, and should help the
>> 16-bit range somewhat, but 16-bits is not really 16-bits in the real
>> world.  Throw away at least 1/2 bit, and maybe more.
>>
>> It will be very interesting to see what a Flex 6000 series finally does
>> in various receive parameters, especially dynamic range.  They claim to
>> handle a very large dynamic range, even without the various RF filters.
>>
>> I can't wait to see the Sherwood report on the 6000 series.
>> 73, Terry, WB4JFI
>>
>>
>> -----Original Message----- From: Barry LaZar
>> Sent: Wednesday, March 13, 2013 10:13 AM
>> To: elecraft at mailman.qth.net
>> Subject: Re: [Elecraft] Wait For The K4 Direct RF Sampled SDR?
>>
>> 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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