Difference between a K3 and a K3S

[Warren Merkel]

> Date: Mon, 25 Jan 2021 11:33:35 -0500
> From:
> To: Henry Pollock - K4TMC<[hidden email]>
> Cc: Elecraft Reflector<[hidden email]>
> Subject: Re: [Elecraft] Difference between a K3 and a K3S

> Was the KSYN3A synthesizer ever built into the K3 as a standard item?  If so, beginning at what serial number?
>
> Thanks,
> Mike NJ2OM


Yes.  The K3 radios built right before the K3s was announced started
coming with the KSYN3A.  Mine is #8903 and came with two of the new
synths. (sub RX)   It also has the HPA from the K3s.  Kinda a Premi-K3s

Warren Merkel, KD4Z


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[Bill Frantz]

When I ordered the 100W card for my K3, the one delivered was
the one for the K3S with the bypass relay.

As you got closer to the K3S radios, a K3 you ordered would have
the more modern cards. Kinda of a gradual upgrade.

If you hava a late serial K3, it might be worth popping the
cover to see what is in your radio.

73 Bill AE6JV

On 1/25/21 at 8:05 PM, [hidden email] (Warren Merkel) wrote:

>>Date: Mon, 25 Jan 2021 11:33:35 -0500
>>From: To: Henry Pollock - K4TMC<[hidden email]>
>>Cc: Elecraft Reflector<[hidden email]>
>>Subject: Re: [Elecraft] Difference between a K3 and a K3S
>
>>Was the KSYN3A synthesizer ever built into the K3 as a standard item?  If so, beginning at what
>serial number?
>>
>>Thanks,
>>Mike NJ2OM
>
>
>Yes.  The K3 radios built right before the K3s was announced
>started coming with the KSYN3A.  Mine is #8903 and came with
>two of the new synths. (sub RX)   It also has the HPA from the
>K3s.  Kinda a Premi-K3s
>
>Warren Merkel, KD4Z

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[Tom-5]

I wonder if I can upgrade my K3,  (Sn # 53, yes 53),  to the HRO-500
concentric knob? Anyone done that?

And yes, I have expressed interest to Elecraft for the synth upgrade.

We (K8AJ and myself) will be buying a K4, but when it shows up, um, she
gets primary use of it.

I'll be allowed to use the K3 and any leftover antennas. So I had better
make the K3 the best I can.


Tom K8TB


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[wc1m]

What was the last K3 serial number?

73, Dick WC1M



73, Dick WC1M

> On Jan 25, 2021, at 1:46 PM, Scott Manthe <[hidden email]> wrote:
>
> The K3 had the new board after SN 8800.
>
> 73,
> Scott N9AA
>
>
>> On 1/25/21 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 <[hidden email]> 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
>>>
>>>
>>>
>
>

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[NJMike]

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[NK7Z]

Far worse than the K3 with the old synth in it.

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 5:04 PM, Wes wrote:

> Yeah but... how did the Collins look?
>
> Wes  N7WS
>
> On 1/25/2021 5:16 PM, Dave Cole wrote:
>> 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)
>
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[NJMike]

Is there a menu item that says what synthesizer is installed?

Mike, NJ2OM



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[ke9uw]

I bought a K3S and then I upgraded my #4XXX K3 which has two receivers with
every upgrade that Elecraft offered. It was mostly just a fun project, but
it's also a backup for the shack. One thing though, I swapped all the
filters and just put the 2.7KHz ones I got with the K3S in the K3. And I
also swapped the digital voice recorder. So I was trying to be somewhat
frugal.



-----
Chuck, KE9UW
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