[Elecraft] NCJ Mar/Apr 8 Issue - pg 7-8: RX Parameters for Contestors

[KC0G]

James Denneny wrote:
> 
> Author summarizes (pg8):  "around 100 to 105 dB of total dynamic range is
> about all that most people want".  So, are claims of -138dB etc overblown
> in
> terms of efficacy?  Interesting article by G3RZP.
> Jim
> K7EG
> 
>  
> You can find the article at:
>    http://www.arrl.org/ncj/2008/03/feature.pdf
> 
> In his conclusion, G3RZP goes on: "The real question is where the dynamic
> range starts.  An antenna attenuator appears to be a useful approach to
> having a relatively low-cost (and low-power) approach to the receiver
> front-end problem".
> 
> This article reminds me of one by Gary Breed, K9AY, which appeared in the
> Nov/Dec 2000 issue of the NCJ.  You can find it at:
>    http://www.arraysolutions.com/Products/appnote_preamps.htm
> 
> I do not see an easy way to add external attenuation to the transmitting
> antenna, as per K9AY, on a K3.
> 
> 73 John  KC0G
> 
> 
> 
> 
> 
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