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

[Warren Merkel]

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.