[Elecraft] KX3 band data dongle

[Ralf Wilhelm]

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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