[Elecraft] Default tuning rate on the Pigknob

[Nick Garner]

Hi Howard,
There isn't a command to change the rate that the encoder built into the K3
operates, what we can do is send a command to the radio to move the VFO
frequency  up or down at different distances from the current frequency.

When the PigKnob encoder pulses, the microcontroller first determines which
direction the knob is spinning, then consults EEPROM to get the configured
command to be sent and then writes those characters out the serial port to
the radio.  The knob has two states, normal tuning and alternate tuning.
 The factory config will send the "UP;" command for clockwise and "DN;"
command for counter-clockwise.  When the knob is toggled into the alternate
tuning mode, by depressing the knob once, the default commands sent are
"UP4;" and "DN4;".  The 4 in these commands tells the radio how far it
should move up or down, "4" is 1 kHz.  When there is no number defined, it
will move 10 Hz.

All four of these commands are configurable.  The K3 Programmer's Reference
says that the command "DNn;" and "UPn;" has options for "n" defined as:
0=1 Hz; 1 or not used=10 Hz; 2=20 Hz; 3=50 Hz; 4=1 kHz; 5=2 kHz; 6=3 kHz;
7=5 kHz; 8=100 Hz; 9=200 Hz
Following these specifications if you wanted to have the clockwise encoder
pulse move the VFO up 5 kHz, for example, you would send the "UP7;" command.

To address your question, if you wanted the default tuning state to move
up/down 1 kHz per pulse of the encoder and you wanted the alternate state
to move RIT up or down, the following configuration commands would
accomplish that.

cw UP4;
cc DN4;
fcw RU;
fcc RD;

73,
Nick
N3WG



On Mon, Jun 10, 2013 at 5:57 PM, Howard Sherer <hms4 at lehigh.edu> wrote:

> Just installed the Pigknob on my K3 and it works great. I would like to
> speed up the default tuning rate from 100hz per rev to 1khz per rev. Is
> there a K3 command to change the encoder tuning rate?
>
> --
> Howard Sherer
>
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