[Elecraft] PSK PTT doesn't work with USB to serial converter

[Don Wilhelm]

Mike and Casey,

DO NOT put an ohmmeter across the RS-232 pins if you value your 
ohmmeter.  You can use a voltmeter to see what the voltage levels are.  
They should go from greater than 3 volts negative to greater than 3 
volts positive - the absolute value of the voltages could be as great as 
15 volts, but more likely 12 in a PC environment.

73,
Don W3FPR

Mike wrote:
> If you can 
> toggle RTS, you could put an ohmeter across the output and see if it changes state.
>
>   
>