[Elecraft] Difference between a K3 and a K3S

[Dave Cole]

I did something similar as well, I have a neighbor that lives around 700 
feet away, he ran a Collins S-Line.  I convinced him to buy a K3, which 
he did.

I did screen grabs of his signal with the K3, and neither of us having a 
new synth, then when he installed his, then when I installed mine... 
Big differences, all documented using the P3 at:

https://www.nk7z.net/k3/


73, and thanks,
Dave (NK7Z)
https://www.nk7z.net
ARRL Volunteer Examiner
ARRL Technical Specialist, RFI
ARRL Asst. Director, NW Division, Technical Resources

On 1/25/21 4:07 PM, David Olean wrote:
> 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
>>>>
>>>>
>>>>
>>>> -- 
>>>> Sent from: http://elecraft.365791.n2.nabble.com/
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