[hpsdr] Pre-Distortion

[W2XJ]

There are line sections that accept the same slugs which is about as good as it gets until amplifier manufacturers decide it is worthwhile to include it in their amps. 

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> On Dec 12, 2013, at 10:00 AM, Brian Lloyd <brian at lloyd.com> wrote:
> 
> ***** High Performance Software Defined Radio Discussion List *****
> 
>> On Thu, Dec 12, 2013 at 6:47 AM, Clyde Washburn <k2ue at rochester.rr.com> wrote:
>> ***** High Performance Software Defined Radio Discussion List *****
>> 
>> There are sniffer plugs for the Bird 43 with a sampled BNC output -- I have used them many times over the years for IM testing of
>> commercial SSB transmitters.
> 
> I am sure this is fine for trying out the technology, but is that what you want for normal, everyday operation? Do you want to have to tie up your Bird wattmeter every time you want to transmit? I think that we probably want a good, dedicated sampler that can go on the output of every PA we have.
> 
> The other thing that comes to mind is a switching system that does a better job of isolating the ADC from leakage from intermediate stages so that the sampler is the only source of input during TX or that allows FDX operation. I would love to see something like the Apache radios repackaged with leakage in mind. 
> 
> -- 
> Brian Lloyd, WB6RQN/J79BPL      
> 706 Flightline Drive
> Spring Branch, TX 78070
> brian at lloyd.com
> +1.916.877.5067
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