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KX3 Safety feature?

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kevino z

KX3 Safety feature?

I noticed if my KX3 is in split mode, and transmitting, and the command S 0 VFOA. Is issued, the power level drops to zero. The very next time the transmission starts again, the power slowly increases from zero to whatever wattage I had set for power out. Is this some sort of safety feature?

-Kevin (KK4YEL)

No trees were killed in the sending of this message. However, a large number of electrons were terribly inconvenienced !
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Don Wilhelm-4

Re: KX3 Safety feature?

I do not see the "S 0 VFO" command in the K3/KX3 programmer's reference.
Is this a command that is being issued to some logging program?
If so, that may be a condition of the logging program (or a bug).

73,
Don W3FPR

On 2/8/2016 8:43 PM, kevino z wrote:

> I noticed if my KX3 is in split mode, and transmitting, and the command S 0 VFOA. Is issued, the power level drops to zero. The very next time the transmission starts again, the power slowly increases from zero to whatever wattage I had set for power out. Is this some sort of safety feature?
>
> -Kevin (KK4YEL)
>
> No trees were killed in the sending of this message. However, a large number of electrons were terribly inconvenienced !
> ______________________________________________________________
> 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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kevino z

Re: KX3 Safety feature?

It is a rigctl command to clear SPLIT mode.

S, set_split_vfo Set split mode, 0 or 1, and transmit VFO.

S 0 VFOA turns off split mode and sets transmit VFO to VFO A

So I guess the better question is if you are in split mode, and transmitting (VFO B), and the KX3 gets a command to turn off split mode, and go to VFO A, what happens?
Does it keep transmitting but now on VFO A frequency ?

Troubleshooting issues with WSJT-X and just trying to understand what is happening under the hood.

-Kevin (KK4YEL)

> On Feb 8, 2016, at 21:04, Don Wilhelm <[hidden email]> wrote:
>
> I do not see the "S 0 VFO" command in the K3/KX3 programmer's reference.
> Is this a command that is being issued to some logging program?
> If so, that may be a condition of the logging program (or a bug).
>
> 73,
> Don W3FPR
>
>> On 2/8/2016 8:43 PM, kevino z wrote:
>> I noticed if my KX3 is in split mode, and transmitting, and the command S 0 VFOA. Is issued, the power level drops to zero. The very next time the transmission starts again, the power slowly increases from zero to whatever wattage I had set for power out. Is this some sort of safety feature?
>>
>> -Kevin (KK4YEL)
>>
>> No trees were killed in the sending of this message. However, a large number of electrons were terribly inconvenienced !
>> ______________________________________________________________
>> 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]
>

Don Wilhelm-4

Re: KX3 Safety feature?

Kevin,

I don't really know what happens if you try to swap VFOs while transmitting.
It is quite likely that the power would drop, and behavior would be as
you are seeing it.

73,
Don W3FPR

On 2/8/2016 10:06 PM, kevino z wrote:

> It is a rigctl command to clear SPLIT mode.
>
> *S,* *set_split_vfo* Set split mode, 0 or 1, and transmit VFO.
> S 0 VFOA turns off split mode and sets transmit VFO to VFO A
> So I guess the better question is if you are in split mode, and
> transmitting (VFO B), and the KX3 gets a command to turn off split
> mode, and go to VFO A, what happens?
> Does it keep transmitting but now on VFO A frequency ?
>
> Troubleshooting issues with WSJT-X and just trying to understand what
> is happening under the hood.
>
> -Kevin (KK4YEL)
>
>
> On Feb 8, 2016, at 21:04, Don Wilhelm <[hidden email]
> <mailto:[hidden email]>> wrote:
>
>> I do not see the "S 0 VFO" command in the K3/KX3 programmer's reference.
>> Is this a command that is being issued to some logging program?
>> If so, that may be a condition of the logging program (or a bug).
>>
>> 73,
>> Don W3FPR
>>
>> On 2/8/2016 8:43 PM, kevino z wrote:
>>> I noticed if my KX3 is in split mode, and transmitting, and the
>>> command S 0 VFOA. Is issued, the power level drops to zero. The
>>> very next time the transmission starts again, the power slowly
>>> increases from zero to whatever wattage I had set for power out. Is
>>> this some sort of safety feature?
>>>
>>> -Kevin (KK4YEL)
>>>
>>> No trees were killed in the sending of this message. However, a
>>> large number of electrons were terribly inconvenienced !
>>> ______________________________________________________________
>>> 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] <mailto:[hidden email]>
>>>
>>