The plain and simple fact is that if you have a Flex you are dependent
on the computer you are running.
Computer breaks, and of course they do, your off the air. SIMPLE.
I read the minimum requirements to run the 6000 series. Half of the PC's
in use by Hams won't cut it.
Minimum, Windows Vista SP2, Dual Core 64 bit processor, Video card 256
MB memory, Direct X 10 or higher ,Net 4.0 or higher. Those are minimums.
You can probably run SmartSDR with that but if it's like most software
it will run like crap on it's minimum requirements.
SDR's like the K3 aren't dependent on any other piece of hardware or
software.
You can run it and it will perform well without ever being hooked up to
a PC.
On 3/9/2015 1:20 PM, Joe Subich, W4TV wrote:
On 2015-03-09 12:23 PM, Jim Brown posted from Michelle, W5NYV:
So, If you want to talk about what the best contesting rig is, then
I think you have to consider radios in a more multidimensional manner
than by just comparing the equivalent of horsepower. Of which, Flex
clearly seems to win.
That claim hides a major blind spot. Sherwood's test numbers show
that the K3 with the new synthesizer is every bit equivalent to the
Flex-6000 series when one considers noise floor (MDS) (weak signal
performance) and realizes that the Flex can not handle multiple very
strong signals without serious blocking and compromised dynamic range
due to A/D limiting.
With the new synthesizer the K3 has a better MDS without a preamp than
the Flex with its preamp enabled. The measured difference without a
preamp on either unit is 18 dB! Even with a 20 dB preamp for the Flex
(which reduces the strong signal handling capability by 20 dB and could
be fatal with multiple strong signals), the Flex still has a 4 dB
higher MDS (less sensitive receiver) that the updated K3 with its
10 dB preamp.
So long as direct conversion SDRs have A/D limiting issues that occur
at real world signal levels (e.g. on 160 meters within a few miles of
50 KW AM broadcast stations, on 40 meters in Europe with multiple
strong broadcast signals in the band, etc.) the Flex SDRs simply can
not be said to "win" any comparison of "horsepower" (and their user
interface sucks!).
73,
... Joe, W4TV
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