[Elecraft] RUMlog controls K4

[Bill Frantz]

On 3/30/21 at 7:33 PM, rick at tavan.com (Rick Tavan) wrote:

>FWIW, I have very little experience with RUMlog (or Skookum Logger which
>may be a predecessor) but if you use RUMlog on your Mac you may be
>encouraged by this tidbit: I have it running on MacOS Catalina doing rig
>control of the K4 via the USB B port, calling it a K3. I'm keying CW
>through the CAT interface which probably means CAT1ASC commands although
>the documentation doesn't say. I've used both the general interface and the
>contest window, both just enough to believe they work.

I have run RUMlogNG for several years, including using it for CW 
and RTTY contests. I have even hooked a protocol analyser up on 
the RS-232 link between it and the radio to try to chase down a 
problem. It has a very interesting approach to sending and 
receiving CW and RTTY through the K3. It does both through the 
CAT interface. To transmit, it uses KY and TB commands to keep 
the radio from buffering more than 2 or 3 characters so the ESC 
key will stop transmission promptly.

For example, to send AE6JV<space><eot> with the K3's response in [brackets]:

KY A;[KY0;]TB;[TB000;]
KY E6;[KY0;]TB;[TB200;]
KY J;[KY0;]TB;[TB200;]
KY V;[KY0;]TB;[TB300;]TB;[TB200;]
KY  ;[KY0;]TB;[TB300;]TB;[TB200;]
KY 
<04>;[KY0;]TB;[TB300;]TB;[TB200;]TB;[TB100;]TB;[TB000;]TB;TB000; etc.

I have not carefully traced the receive path.

The problem I was trying to track down is the failure to 
correctly chain transmissions in RTTY mode. CW works fine. If, 
for example, I press F4 twice to send my call sign twice, the 
radio will transmit AE6JV E6JV, dropping the first character 
from the second press of F4. I used my KX3 to monitor what was 
actually being transmitted. I got lots of useful advice from 
N6TV in running these tests.


>If you're a RUMlog expert waiting for your K4 and want to discuss, feel
>free to contact me directly.

I won't say I'm a RUMlog expert, and I'm waiting for the K4 kit, 
but if I can help, please let me know.

73 Bill AE6JV


-----------------------------------------------------------------------
Bill Frantz        | The race is not always to the swift, nor 
the     |
(408)348-7900      | battle to the strong, but that's the way to 
bet. |
www.pwpconsult.com |       - Damon 
Runyon                             |