[Elecraft] Analog vs. Digital Front Ends

[Barry N1EU]

You're right about the 6300 Joe.   I don't consider the Flex 6300 as
"serious" in terms of a serious contesting radio.  I would expect a serious
contester to go with the Flex 6500/6700 or ANAN 100 or 200 series.

On a crowded band being pounded by strong signals, the direct sampling ANAN
rx sounds cleaner to my ears than the K3 or Orion.  I don't see the
overload issues hypothesized by many on this thread.  But maybe I'm wrong.

The K3 and Orion are ergonomically superior contesting radios however.

Barry N1EU

On Wed, Sep 16, 2015 at 10:27 AM, Joe Subich, W4TV <lists at subich.com> wrote:

>
> On 9/16/2015 9:16 AM, Barry N1EU wrote:
>
>> All the serious direct sampling ham xcvrs have single band pass filters
>> ahead of the ADC for ham band reception so that's not an issue.
>>
>
> Not true - the Flex-6300 has no preselectors.  Even if the transceiver
> includes preselectors (bandpass filters), defining a second "slice
> receiver" on a different band causes the preselector to be bypassed.
> The preselector (most of which are not very "tight") only works when
> operations are confined to a single band.
>
> Those who live in RF quiet locations - no nearby neighbors, no MF or
> HF broadcast, etc. - can get away with current direct sampling SDRs
> just like those in quiet locations can get away with an IC-706 or 7000.
> The *real performance* of the direct sampling technology is equivalent
> to a moderate performance conventional transceiver with broadband IF
> panadapter.
>
> 73,
>
> ... Joe, W4TV
>
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