[Elecraft] KX3 band data dongle

[Larry Hagood]

Thank you so much Ralph! I'm currently in the third year of an EE program and several of the Professors are hams. I'm thinking this might be a possible project for a project class next semester :) 

> CC: elecraft at mailman.qth.net
> From: ralf at super-deutschland.net
> Subject: Re: [Elecraft] KX3 band data dongle
> Date: Wed, 17 Jul 2013 23:59:32 +0200
> To: larry_hagood at hotmail.com
> 
> Hi Larry,
> 
> I don't think it is very hard. The band data of the 817 is a dc voltage between 300 mV and 4 V dependent on the band. I think a pic decoding the KX3 RS232 data and driving a DAC for generating the voltage would probably do the job.
> 
> Maybe this page 
> http://g4fre.com/KX3_RS232_hf.htm
>  is a good starting point...
> 
> 73
> 
> Ralf, DL6OAP
> 
> Am 17.07.2013 um 23:15 schrieb Larry Hagood <larry_hagood at hotmail.com>:
> 
> > I would like to use a small (40 watt) amp with my KX3 when the 10 watts just won't cut it.  There's a neat looking little Chinese amp on ebay for about $300 (MX-P50A) it interfaces directly with the FT-817 for auto bandswitching. How hard would it be to construct a dongle that plugs into the KX3 acc jack but then emulates an 817 acc jack (band data out only) Thanks!-Larry                         
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