[Elecraft] K4 Remote Antenna button

[David Box]

Wayne

Just looking at the updated manuals and wanted to know about the DC 
input power range limits.  On page 4 of the new update its ays power of 
13.8 to 14.2V preferred.  I have been running my K3s with an input power 
of 14.8V based on IMD tests I have done.  What is the safe range for DC 
input and is the 14.2V recommendation based on an IMD sweet spot or can 
I leave my existing supply at 14.8V. I can adjust down to 14.2V if that 
is better operating point.

Thanks for updates on docs.

de Dave K5MWR


On 11/2/2020 10:18, Wayne Burdick wrote:
>> On Nov 2, 2020, at 7:51 AM, Jim Miller <jim at jtmiller.com> wrote:
>>
>> This is mentioned in the online manual. However there's no suggestion as to
>> how it would interact with an external device. Obviously some code inside
>> the K4 would need to do some signalling, perhaps written by an approved ISV.
>>
>> How would it physically transmit commands? USB, Ethernet?
>
> USB, Ethernet, or RS232. There's no limit on how this could be done, but it hasn't been added yet. Do you have a particular antenna switch or other device in mind? It could also be a rotator, etc.
>
> 73,
> Wayne
> N6KR
>
>
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