http://elecraft.85.s1.nabble.com/KPA1500-Operation-on-6-Meters-tp7662211p7662266.html
> That means that he needs to check the connectors, adapters and cable that run from the KPA500 to the LPA-100 and potentially the LP-100A itself.
>
> The directional coupler is the last component in the KPA500 chain. For reflected power, it simply reports the conditions it sees from the antenna connector out.
> That means the connectors, adapters and cable that follow it. Especially look at any adapters, they are notorious (especially right-angle adapters) for failing at hight power.
>
> This is a problem that many have seen, and is always an issue in the antenna system. Jim’s advice is spot-on here.
>
> 73!
> Jack, W6FB
>
>
>> On Jun 15, 2020, at 4:46 PM, Adrian <
[hidden email]> wrote:
>>
>> Did you see this part in Ed's earlier post ;
>>
>> "
>>
>> An LP-100A on the output of the KPA1500 is also used and displays the correct low SWR at all drive levels that I would expect to be seeing on the KPA1500 display."
>>
>>
>>
>> This would also should any power breakdown, but it doesn't ?
>> Adrian Fewster
>>
>>
>> On 16/6/20 6:30 am, Jim Brown wrote:
>>> On 6/15/2020 6:48 AM, Ed G wrote:
>>>> When setting the power output of my K3 to give varying amounts of drive to the KPA1500, I am seeing SWR as displayed on the KPA1500 changing by a significant amount depending on the drive level.
>>> Look for something breaking down in your antenna system or between the power amp and the antenna. High power has a way of finding weaknesses that low power lives with.
>>>
>>> 73, Jim K9YC
>>>
>>>
>>>
>> ______________________________________________________________
>> 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]
>