Topband: ADC Overload from MW transmitters

MIKE DURKIN patriot121 at msn.com
Tue Oct 20 01:07:39 EDT 2015


If i must ....

Tom never mentioned what type of SDR would be wiped out by moderate signals ... 

That in its self has three problems ... 

NO filtering? (should this be called -- comparing apples to apples, not apples to turds)
poor ADC (real cheap soundcard 8bit)?
insanely bad phase error in the nearby transmitter OR the wonderfull SDR that he built.

Nearly the entire email was lamented as a setup for a flame war by simply omitting details ... that is not the actions of a good engineering radio operator ... hence ... SPAM. -- it was a showing off the effort put into the SDR i guess.

And i worry about you Bill .... the word "SPAM" being an expletive in your vocabulary ... 

I think of many responses on here to ADC overload as this -- 

When dealing with a computer .. the quality of work/info put into it will have the same ratio that you will get out of it -- qubed.

how many samples per second are true overload .... and i mean overload -- not phase error -- if you don't know the difference you really shouldn't put forth an opinion as truth.

That video that was posted in this discussion(awhile ago) did point out the difference quite well and understandable by almost anyone .. check it out, if not again.

Not sure if i should really send this .. but, what the hell.




> From: baycock at mediacombb.net
> To: patriot121 at msn.com; topband at contesting.com
> Date: Mon, 19 Oct 2015 17:41:41 -0500
> Subject: Re: Topband: ADC Overload from MW transmitters
> 
> 
> 
> -----Original Message----- 
> From: MIKE DURKIN
> Sent: Monday, October 19, 2015 10:47 AM
> To: topband at contesting.com
> Subject: Re: Topband: ADC Overload from MW transmitters
> 
> SPAM !!!!!!
> 
> Mike--
> Can you explain this opinion?
> In my experience, almost anything Tom takes the trouble to publish is well 
> thought-out and worth reading. Your expletive puzzles me.
> Bill--W4BSG 
> 
> 
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