[Elecraft] [K3] Want to buy a K3

[Don Wilhelm]

Philippe,

That is true if one is operating in an environment where there are 
strong signals close to your listening frequency - and if that is the 
case, the narrow roofing filters are a must.  My operating is more 
casual, and I find the 2.7 kHz filter plus the DSP filter quite adequate 
for my purposes (either CW or SSB or Data modes).  Now, if the ham 
located only 2500 feet from me choses to get on the air close to my 
frequency regularly, I may change my mind and get the more narrow 
roofing filters.  So far, that has not been a problem, so I continue 
with my single 2.7 kHz filter for all modes except FM (which I do not 
normally operate, but I do have the 13 kHz filter) - I have no desire 
for AM transmit nor ESSB, so I do not have the 6 kHz filter either.

73,
Don W3FPR

Philippe Trottet wrote:
> Fully confirm this assessment ! 
> The 1.8Khz 8 pole in a congested environment is a must. I have it in addition of the 2.8Khz.
> Considering the H polar of my 40m antenna receiving signals from the close East, most are regular Ham's from ex-USSR area and also very active pirates on that side, up to 59 +30 is common. 
> Sometime ago two of those big guns were respectively on 7.085 and 7.090 with certainly old amplifiers spreading their signal several KHz away from the normal spectrum with saturated audio, I've just clicked on the 1.8Khz filter and as Bill says, FC to 1.05~1.10 and was able to listen clearly and do the contact with JA8BOF on 7.088. 
> Just a trick, to program with the Elecraft utility the1.8Khz filter, starting from 2.1Khz.
> When listening with the 2.8 moving the width down will activate automatically at 2.1Khz the 1.8 filter, it is helpful.
> 73's
> Philippe A65BI
> http://www.qrz.com/callsign/A65BI
> K3#3616
> " By Ham's, For Ham's...What else ! "
>
>  ( http://www.qrz.com/callsign/A65BI ) 
>
>   
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