[Elecraft] Difference between a K3 and a K3S

[David Olean]

I bought a K3 SN 8858  just before the K3S was announced at Dayton. It 
had the new synthesizer. I was curious to see what the difference was 
between the two and ran a few simple tests in my alleged lab using an 
older K3 as a reference rig.  I found the new rig had a lower noise 
floor by a small amount (several dB) and was quite a bit better in close 
in reception near very strong signals. I think I saw no debilitating 
effects of a 1 milliwatt signal that was 1.00 kHz away from a very weak 
signal right near the noise floor. I was impressed!  0dBm vs -138 dBm!!

Dave K1WHS

On 1/25/2021 11:33 AM, Mike Kopacki wrote:
> Was the KSYN3A synthesizer ever built into the K3 as a standard item?  If so, beginning at what serial number?
>
> Thanks,
> Mike NJ2OM
>
>> On Jan 25, 2021, at 10:51 AM, Henry Pollock - K4TMC <kilo4tmc at gmail.com> wrote:
>>
>> 
>> Mike,
>>
>> You can look at the numbers on Sherwood Engineering's Receiver Test Data List, specifically the 5th, 6th and 7th items from the top, and the KX3 is just a few items lower.
>>
>> 73,
>> Henry - K4TMC
>>
>>
>>> On Mon, Jan 25, 2021 at 10:29 AM NJMike <mikekopacki at gmail.com> wrote:
>>> If a K3 has been upgraded to the latest synthesizer - the KSYN3A - what's the
>>> difference between it and the K3S?
>>>
>>> Thanks,
>>> Mike NJ2OM
>>>
>>>
>>>
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