[Elecraft] K144XV vs XV144

[Edward R Cole]

oops!  meant to say: "you can't work em if you can't hear em", but 
also true on 2m-eme if you can not hear "me" - LOL!
I run ERP= 73kW on 2m-eme.

Ed

At 09:53 AM 12/16/2012, Edward R Cole wrote:
>Not a comment on the K144XV vs XV144, but one about running eme.
>
>Use of a low-noise figure preamp is not "optional" for eme, so 
>transverter sensitivity is less important an issue, though its nice 
>if it is low.  I use a DEMI 144-28 transverter with 0.8 dB NF 
>(unmeasured) and 17-dB conversion gain.  With my 0.1 dB NF preamp 
>(26-dB gain) this produces a S4 noise floor in the K3 on 28-MHz (a 
>bit too much gain).  This will result in impacting large signal 
>handling but I have no issues for that on 2m since the nearest 
>active 2m eme station is in BC about 1300km away.
>
>Use of an external preamp is encouraged on 2m and higher freq if one 
>is into working CW/SSB/digital long-range, weak-signal 
>contacts.  You can't work em if you can't hear me!  My 2m-eme 
>receiving system MDS= -153 dBm. (-172 dBm with antenna gain).  K3 
>diversity receiving makes eme a real joy!
>
>Best Wished for the Holidays!
>Ed - KL7UW
>we will be attending Dayton this year!  We will be at the 
>microwavers flea mkt location with WA5VJB and NE8I (and others).  I 
>plan to demo the new 5w/140w HF amp using the KX3 as exciter.