[Elecraft] [KX3] Power Consumption

Phil Wheeler w7ox at socal.rr.com
Fri Jan 9 19:10:54 EST 2015


Very cleverly done, Wayne:-)

Phil W7OX

On 1/9/15 3:26 PM, Wayne Burdick wrote:
> The reason 5.0 W current drain is lower in CW/FM/FSK-D modes is that the KX3 uses its higher-impedance PA transformer winding at this level. The upper limit for use of the high-Z winding is 5.0 W in CW/FM/FSK-D and 3.0 W in all other modes. If you're above the limit for a given mode, the lower-Z winding is used to minimize transmit IMD at higher power levels.
>
> 73,
> Wayne
> N6KR
>
>
> On Jan 9, 2015, at 1:44 PM, "Reilly, John" <reillyjf at comcast.net> wrote:
>
>> Trying to do some planning for Field Day battery operation. We are planning to use a KX3 at 5w, CW.
>>
>> Could someone(s) give me a feeling for RX current draw. I would like this to be with the Backlight ON, and other normally ON functions activated. Likewise, what current draw should we see with key down CW at 5w?
>>
>> Thanks,
>>   - 73, John, N0TA



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