[Elecraft] KPA100 - RS232 difficulties

[Richard Stasiak]

Hello fellow Elecrafters

Just finished up the KPA 100 - the PA works fb.

However, I cannot get the RS232 port to work.

I have checked the computer cable three times and resoldered the pins of U4.

I can turn the port on and off, using the menu command

Using Hyperterminal, I can get the K2 to send the frequency to the computer
ok., but I cannot send the  command (SW01;) to the K2 to get it change
bands.

When I run K2 remote and select the COM port, K2 Remote comes back with an
error message to check the RS 232 connection or make sure the K2 is powered
up.

Anyone have any suggestions or ideas on things to check?

73

Rick VE3MM
K2/100 #1591