[Elecraft] HI Current

Don Wilhelm w3fpr at embarqmail.com
Mon Dec 15 11:11:13 EST 2014


Matt is entirely correct.  The first thing to investigate in the event 
of a Hi Current message is the voltage (as indicated by the K3) level 
during transmit.

The way Elecraft transceivers control power, a low voltage means that 
higher current must be obtained to maintain the requested power output 
level.

Common causes are loose connections at the power supply, improperly 
assembled Anderson PowerPole connectors, and either long power supply 
cables or too small a wire gauge resulting in significant voltage drop 
when current is drawn.

This applies not only to the K3, but also to the KXPA100 and the K2/100.

73,
Don W3FPR

On 12/15/2014 8:52 AM, Eric Ross wrote:
> I see the same thing, but only on 10m.  I just assumed (possibly erroneously) the power indication was not accurate and used the indicated 100w.  I don't have an external wattmeter to validate.  My antenna is tuned for 20m so tuning it is not that hard on 10m.
>
> Eric
> wb7sde
>
> On December 14, 2014 9:23:15 PM PST, Matt VK2RQ <matt.vk2rq at gmail.com> wrote:
>> Maybe there is not enough voltage at the power input to the radio —
>> possibly due to high resistance at your power connections or in your
>> fuse holders?
>>
>> 73, Matt VK2RQ
>>
>>
>>



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