Jack, (and others on the list)
Thanks for the pointers. I was unable to get the rs-232 to the
computer working. I have not tried the Aux-bus to the K3 yet. I think
I will contact elecraft service and see if I can send it back for a
look-see by them. I can not tell what it has for firmware or set the
bandmap without the rs232.
I had only the jumpers in for the RS-232 connection, and the serial
cable is only wired up for rx, tx and gnd (pins 2,3 and 5). I tried all
the baud rates, I did verify that the serial port and cable worked with
my KPA-500 and W2 meter.
Gordon - N1MGO
On 10/22/2015 02:17 PM, Jack Brindle wrote:
Gordon;
When you get ready to test, send me an email. I will be around this weekend,
although I plan on spending some time in CQ WW.
One thing that is very critical. Using a straight-through RS-232 cable will put
high voltage (12V) signals on the microcontroller and can
damage it. I hope that isn’t the situation you are seeing.
The microcontroller reads the W1-8 jumpers only at power-up, so after you
change the jumpers you must power cycle the KRC2.
You can reset the bandpass to factory default by holding the F4 button at power
up. This requires the V1.6 firmware, which has
been out for several years. There should be a sticker on the MCU that indicates
the firmware it held when it left the factory, but
that becomes invalid after the firmware is upgraded. At that point, the only
real way to tell the difference is to query the MCU
with the KRC2 Utility. When you try that utility, the DL/OP switch inside the
KRC2 needs to be on the DL position. It should be
in the OP position for normal use if you are using RS232 to communicate with
the radio.
Let me know when you get testing and I’ll help as much as I can. We really do
want to get you going with your KRC2 as quickly as possible.
73,
- Jack Brindle, W6FB
Elecraft Engineering
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