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Re: KX1 Power Output

Posted by Don Wilhelm-4 on Jan 31, 2012; 3:08pm
URL: http://elecraft.85.s1.nabble.com/KX1-Power-Output-tp7238794p7240086.html

Tom,

Yes, your values look reasonable.  The KX1 will always indicate that the
voltage is about 0.4 volts lower than read at your supply.  There is a
series diode to prevent damage from reverse polarity, so the inside of
the KX1 sees a voltage that is one diode drop less than your supply.

73,
Don W3FPR

On 1/30/2012 9:44 PM, Tom Crites wrote:

> I hope you can read this, but do the values look reasonable, for a KX1
> with the output power mod.  Peak to peak (Vpp) voltages and RMS (Vrms)
> were taken with a high end O'scope and used to compute the Power
> values (Ppp and Prms).
>
> Seems the KX1 read the supply voltage about 0.4 volts low.
>
> Thanks,
> Tom Crites, KC8SES
>
>
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