[Elecraft] New Elecraft Product: K-Pod Control Panel for K3S and K3 Transceivers

[Wayne Burdick]

The modification will involve *only* pin 6 of the RJ jack. Everything else must remain the same since we use that port for firmware emulation. 

No SMDs need be removed or added in this mod. Just one added 1/8th-watt resistor.

Wayne
N6KR

On Apr 15, 2016, at 9:27 AM, Warren Merkel <hullspeed21 at gmail.com> wrote:

> Looks right Joe,
> 
> Not knowing if the K-Pod is a 3.3v versus a 5V device, it is hard to
> predict.  If 3.3v, the 120R on pin 2 could be removed and keep the
> protection of the BAT54 zener, leaving barely enough voltage for a 3.3V
> dropout regulator in the Pod.  If 5V, shorting the 10K on pin 6 would
> likely be the route.   Since the K-Pod also provides a USB port, my bet
> is will be a pin 6 modification as it will require 5V to be "normal".
> 
> What ever the mod, it stands to reason that the guys would try to keep
> the port operational in it's original purpose as well.
> 
> Pin 4 (PGD) and Pin 5( PGC) will obviously be for data in the
> undisclosed format :)
> 
> Whatever the mod will be, it will involve tiny smd chips...
> 
> Diagram snip here:
> https://dl.dropboxusercontent.com/u/24789865/K3_ICD-2_page22_Front_panel_MCU.JPG
> 
> It looks like a bust to migrate the K-Pod to the KX3, as all of the pins
> definitions on the internal "ACC" connector are switched all around, not
> to mention it's a 3.3V setup and the connector isn't brought outside. 
> Would be a more serious modification indeed.
> 
> Warren, KD4Z
> 
> 
>> Message: 32
>> Date: Fri, 15 Apr 2016 09:58:38 -0400
>> From: "Joe Subich, W4TV" <lists at subich.com>
>> To: elecraft at mailman.qth.net
>> Subject: Re: [Elecraft] New Elecraft Product: K-Pod Control Panel for
>> 	K3S and K3 Transceivers
>> 
>> On 4/15/2016 9:31 AM, john at kk9a.com wrote:
>>>> How involved is the radio modification? I can see this as a
>>>> convenient way to use RIT and activate the CW/SSB keyer memories.
>> From looking at the K3 schematic it looks like not much more than
>> removing a resistor and adding a jumper or perhaps changing a diode.
>> There are two +5V lines on the RJ-12 jack but one has a 10K current
>> limiting resistor and the other a diode/120 Ohm resistor.
> 
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