K3 and 144 MHZ Mods

[Luigi Casari]

Regards to all

Is possible to have 12 volts in RX and 0V in TX on the 144MHz antenna 3
connector ?
In the manual speak of 5V but the preamplifiers work with 12V and most of
them in RX.
Some hope to have for the future this change?

73, Luigi HB9CXZ

[hidden email]

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[Dave-3]

The DC current from the centre pin of ant 3 is intended for switching equipment
not for powering preamps. The output is current limited to just a few ma so
would not be able to power any preamp

Dave

ww2r

> Message: 4
> Date: Sun, 10 Oct 2010 18:59:23 +0200
> From: "Luigi Casari" <[hidden email]>
> Subject: [Elecraft] K3 and 144 MHZ Mods
> To: <[hidden email]>
> Message-ID: <001d01cb689c$7d990bc0$6401a8c0@luigi>
> Content-Type: text/plain; format=flowed; charset="iso-8859-1";
>         reply-type=original
>
> Regards to all
>
> Is possible to have 12 volts in RX and 0V in TX on the 144MHz antenna 3
> connector ?
> In the manual speak of 5V but the preamplifiers work with 12V and most of
> them in RX.
> Some hope to have for the future this change?
>
> 73, Luigi HB9CXZ
>
> [hidden email]

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