[Elecraft] [Elecraft-K3] K3S to be discontinued

W2xj W2xj at w2xj.net
Mon Nov 4 19:34:00 EST 2019


One could always have a modular approach which is how other industries approach this. Broadband combiners are not that complicated. BTW, predistortion   is common practice is a number of industries.

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> On Nov 4, 2019, at 5:03 PM, Joe Subich, W4TV <lists at subich.com> wrote:
> 
> On 2019-11-04 4:44 PM, Scott Manthe wrote:
> > Elecraft's design philosophy dictates that their radio be capable of
> > portable/field operation, so that's how they design their radios.
> > They're lightweight, efficient, and operate off 12 volts.
> 
> If that's the design philosophy, limit the power output to 60 W PEP.
> 
> Elecraft already have *two* other 12V capable radios - the KX2 and KX3 -
> of one doesn't count the K2.  *WHY* create another dirty 12V radio
> ("active predistortion" is not the solution) when one can have a clean
> 60W radio at 12V or a clean 200W radio at 40V?
> 
> Build a DC-DC supply for the 40V PA stage if one wants to run it from
> an automobile electrical system (or install a separate 48V alternator,
> regulator and battery specifically for the PA stage).
> 
> Increasing transmit IMD by a factor of 40 just to operate the radio
> at 100 W PEP on a 12 battery is unconscionable given today's state
> of the art.  It was different when 48V transistors/FETs were not
> available but that ship sailed almost 20 years ago.
> 
> 73,
> 
>   ... Joe, W4TV
> 
> 
>> On 2019-11-04 4:44 PM, Scott Manthe wrote:
>> Elecraft's design philosophy dictates that their radio be capable of portable/field operation, so that's how they design their radios. They're lightweight, efficient, and operate off 12 volts. Lots of other manufacturers love giant, heavy rigs. Elecraft doesn't.
>> 73,
>> Scott N9AA
>>> On 11/4/19 3:52 PM, David Gilbert wrote:
>>> 
>>> I agree completely with all of that, but with the discontinuance of the K3s it seems that Elecraft doesn't really consider the K4 to be strictly a base station rig.  Their continued insistence upon everything being 12 volt capable is a bit of a puzzlement for me.
>>> 
>>> 73,
>>> Dave   AB7E
>>> 
>>> 
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