[Elecraft] K4 recommendation - wait for HD or no?

[John Simmons]

I recall reading *somewhere* the story of two hams that lived in 
adjacent lots about 300-500 feet apart. They cooperated and tried lots 
of remedies to eliminate interference with each other. They each wound 
up with a K3. When the upgrades for the 'S' became available, both 
installed the appropriate options in their K3 radios. After that they 
could operate within 10 KHz of each other without knowing- at legal 
limit. YMMMV


-- 
73,
-de John NI0K rural Debs, MN
https://www.qrz.com/db/ni0k


Dave (NK7Z) wrote on 1/18/2023 7:40 PM:
> Hello Joe,
>
> I am in somewhat the same situation as you are, just not as bad...  I 
> have a KW level Amateur living about 700 feet from me.  I had a K3, 
> and as long as we were not within 50 KHz of each other, he really did 
> not bother me, save when he was hammering his ALC-- but that is a 
> different story...
>
> I also have several other Amateurs all living maybe 1 to 2 mile from 
> me.  All running 500 to 100 watts.
>
> I was very worried that the K4D would have issues with any of them 
> when they were transmitting.
>
> So far the K4D had behaved as the K3 did, some interference, (not 
> much), when the KW level fellow comes on line, and only on the same 
> band.  I have tested other bands while the KW level ham is 
> transmitting, and if I am on a different band, I can not hear him...  
> With regards to the Amateur running 500 watts a mile from me, the K4D 
> behaves marginally BETTER than the K3 did.
>
> That is not the same as having another ham a one wavelength away, as 
> you describe, so your mileage WILL vary...  I will NOT be purchasing 
> the HD module, as it appears I do not need it...
>
> My guess is you will see worse performance than I do, due to your very 
> close proximity to the other Amateur, but I can't predict how much 
> worse...  The K4D is remarkably tolerant of strong signals.
>
> 73, and thanks,
> Dave (NK7Z)
> https://www.nk7z.net
> ARRL Volunteer Examiner
> ARRL Technical Specialist, RFI
> ARRL Asst. Director, NW Division, Technical Resources
>
> On 1/18/23 11:53, Joseph M. Durnal wrote:
>> I share a property line with another ham. Some of his low band wires are
>> within a wavelength  of my vertical.  When he's  transmitting, I rarely
>> notice with K3 unless I'm really close.  The IC-7300, he can wipe out my
>> receive if we are trying to work on the same portion of the band.
>>
>> I have my sights set on a K4D, but wondering if I should be 
>> considering the
>> HD version.
>>
>> Thanks & 73 de Joe NE3R
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