[Elecraft] Birdies

[David Gilbert]

The firmware birdie removal took care of every bothersome birdie (and I 
am a stickler about weak signal performance) except for one that was 
still an S2 or so ... and that was in a portion of the band that I don't 
care much about.

I did play around quite a bit with cable placement (see humorous note 
below) to prior to using the firmware fix, and didn't necessarily find 
the best arrangement to be the ones that Elecraft recommends.  By the 
way, the best layout is quite dependent upon whether or not you have the 
2nd receiver installed.

Of course the firmware birdie removal won't remove them from the 
panadapter ... don't know why you'd think it would.  If you read the 
description of how it works it simply shifts them out of the normal 
listening passband, but they will still be in the IF window.

Dave   AB7E

Note:  Prior to the firmware fix, I tried all sorts of things to reduce 
the birdies.  Once I got the cable placement as best I could, I even cut 
up sheets of carbon impregnated foam, put them inside of plastic 
sandwich bags, and stuffed the K3 with them to hopefully absorb some of 
the coupled energy between cables and various metal parts.  It was a 
total waste of time.  ;)



On 3/8/2017 7:30 PM, ab2tc wrote:
> Hi,
>
> Can you give me a list (frequencies) of your worst birdies and I will check
> if I have them. In general I have not found many bothersome birdies in the
> K3S, but there are some. If I don't have them, there is clearly something
> wrong with your radio which may warrant a return to Elecraft. BTW, I don't
> have much faith in firmware birdie removal. It certainly doesn't remove
> birdies in the panadapter display (LP-Pan and NaP3 in my case).
>
> AB2TC - Knut
>
>
> Grant Youngman-2 wrote
>> I LOVE my K3 … It’s the best radio I’ve owned (and I’ve owned
>> many/most/all of the very best)., except on AM where my old Orion/Orion II
>> (the ones I sold to buy the K3) were much better … but that’s a different
>> issue.  (And E’craft won’t “formally" deal with it).   Everything else
>> about the K3 is FAR superior.
>>   
>> After, I don’t know 8-9 years of ownership ..  ALL (and I do mean ALL)
>> hardware/software updates have been applied, including the new K3S boards
>> that have been made available.  So it’s as up to date as possible.
>> Still — the age old issue of “birdies” has been an elusive problem to
>> solve.
>>
>> Just for the record .. I have 2x KYSYN3A’s installed, a subreciever, and
>> the other usual updated stuff.  I’ve fiddled for hours with the birdie
>> removal routines in firmware.  And yet — they’re everywhere.  Most are low
>> enough in signal strength to ignore — but there are many LOUD ones here
>> and there on 80/4020/and elsewhere that are just “there”.  Nothing really
>> helps.  I just spent an evening fiddling with cable placement AGAIN, to no
>> avail.
>>
>> I’ve followed carefully all of the cable routing instructions provided by
>> Elecraft.  To no real effect.
>>
>> So my question is — has anyone found a SOLUTION??  I’m considering sending
>> my radio to CA, but I'm concerned that after spending the $$$ to do that I
>> won’t be any better off.
>>
>> To be clear — this isn’t a deal killer by any stretch  … just looking for
>> input.
>>
>> Grant NQ5T
>> K3 #2091, KX3 #8342
>> <snip>
>
>
>
>
> --
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