[Elecraft] Antennas and Output Power - KPA-1500

N4ZR n4zr at comcast.net
Thu Oct 15 16:24:12 EDT 2020


I guess I wasn't clear - when I see this overpower/fault combination, 
the sloper is matched around 1.2:1, it's just that output power and 
current draw jump up to fault levels, so a retune wouldn't help

73, Pete N4ZR
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On 10/15/2020 3:40 PM, wb6rse1 at mac.com wrote:
> See p.25 of the manual. Then p.30 set ATU HiSWR RETUNE to ON for 40m.
>
> GL - Steve WB6RSE
>
>> On Oct 15, 2020, at 12:17 PM, N4ZR <n4zr at comcast.net> wrote:
>>
>> I have two antennas for 40M, a Carolina Windom and a full-wave parasitic sloper, the latter fed through a 4:1 balun.  The 1500's tuner handles both antennas nicely, and I have trained it on both of them, but when I switch from the Windom to the sloper (on an external antenna switch), the output power changes from ~1400 watts to nearly 1700, often triggering a high current fault.  Any way around that?
>>
>> -- 
>> 73, Pete N4ZR
>> Check out the Reverse Beacon Network
>> at <http://reversebeacon.net>, now
>> spotting RTTY activity worldwide.
>> For spots, please use your favorite
>> "retail" DX cluster.
>>
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