QRQ + and the K4 question

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QRQ + and the K4 question

Steven G. Steltzer
Will the K4 do away with the annoyance of the RIT/XIT turning off QRQ+ mode?

Thanks,
Steve, WF3T
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Re: QRQ + and the K4 question

wayne burdick
Administrator
As an SDR, the K4 has no need to shift an oscillator between RX and TX mode. So there’s no need for “QRQ mode.”

Wayne
N6KR

----
elecraft.com

> On Dec 6, 2019, at 3:58 AM, Steven G. Steltzer <[hidden email]> wrote:
>
> Will the K4 do away with the annoyance of the RIT/XIT turning off QRQ+ mode?
>
> Thanks,
> Steve, WF3T
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
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Re: QRQ + and the K4 question

K9MA
A related question: Will the latency and turn-around time of the K4 be
fast enough for true QSK operation? The K3 can only hear between words
above about 10 wpm, and QRQ mode doesn't help much.

73,
Scott K9MA


On 12/6/2019 09:13, Wayne Burdick wrote:

> As an SDR, the K4 has no need to shift an oscillator between RX and TX mode. So there’s no need for “QRQ mode.”
>
> Wayne
> N6KR
>
> ----
> elecraft.com
>
>> On Dec 6, 2019, at 3:58 AM, Steven G. Steltzer <[hidden email]> wrote:
>>
>> Will the K4 do away with the annoyance of the RIT/XIT turning off QRQ+ mode?
>>
>> Thanks,
>> Steve, WF3T
>> ______________________________________________________________
>> Elecraft mailing list
>> Home: http://mailman.qth.net/mailman/listinfo/elecraft
>> Help: http://mailman.qth.net/mmfaq.htm
>> Post: mailto:[hidden email]
>>
>> This list hosted by: http://www.qsl.net
>> Please help support this email list: http://www.qsl.net/donate.html
>> Message delivered to [hidden email]
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--
Scott  K9MA

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Re: QRQ + and the K4 question

wayne burdick
Administrator

> On Dec 6, 2019, at 9:47 AM, K9MA <[hidden email]> wrote:
>
> A related question: Will the latency and turn-around time of the K4 be fast enough for true QSK operation?

Yes. Since the K4's signal processing for CW is primarily in the time domain, it has a distinct advantage over those that batch-process signals using FFTs and IFFTs (frequency domain).


> The K3 can only hear between words above about 10 wpm, and QRQ mode doesn't help much.

This depends on how the K3 is configured. There are two QSK settings (see CONFIG:CW WGHT menu entry), and with one of them, along with proper adjustment of AGC, it's possible to hear between dots at well over 20 WPM. The new synthesizer (KSYN3A) also improved QSK times.

73,
Wayne
N6KR




>
> 73,
> Scott K9MA
>
>
> On 12/6/2019 09:13, Wayne Burdick wrote:
>> As an SDR, the K4 has no need to shift an oscillator between RX and TX mode. So there’s no need for “QRQ mode.”
>>
>> Wayne
>> N6KR
>>
>> ----
>> elecraft.com
>>
>>> On Dec 6, 2019, at 3:58 AM, Steven G. Steltzer <[hidden email]> wrote:
>>>
>>> Will the K4 do away with the annoyance of the RIT/XIT turning off QRQ+ mode?
>>>
>>> Thanks,
>>> Steve, WF3T
>>> ______________________________________________________________
>>> Elecraft mailing list
>>> Home: http://mailman.qth.net/mailman/listinfo/elecraft
>>> Help: http://mailman.qth.net/mmfaq.htm
>>> Post: mailto:[hidden email]
>>>
>>> This list hosted by: http://www.qsl.net
>>> Please help support this email list: http://www.qsl.net/donate.html
>>> Message delivered to [hidden email]
>> ______________________________________________________________
>> Elecraft mailing list
>> Home: http://mailman.qth.net/mailman/listinfo/elecraft
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>>
>> This list hosted by: http://www.qsl.net
>> Please help support this email list: http://www.qsl.net/donate.html
>> Message delivered to [hidden email]
>
>
> --
> Scott  K9MA
>
> [hidden email]
>
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Re: QRQ + and the K4 question

K9MA
With AGC-F set to 200, "new" QSK, tnd the new synthesizers, I can just
barely hear between the dots at 24 wpm. (non-QRQ mode).

That's the only thing a miss about my old FT-1000D. No one misses the
key clicks.

73,
Scott K9MA

On 12/6/2019 12:26, Wayne Burdick wrote:
>> The K3 can only hear between words above about 10 wpm, and QRQ mode doesn't help much.
> This depends on how the K3 is configured. There are two QSK settings (see CONFIG:CW WGHT menu entry), and with one of them, along with proper adjustment of AGC, it's possible to hear between dots at well over 20 WPM. The new synthesizer (KSYN3A) also improved QSK times.


--
Scott  K9MA

[hidden email]

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