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

[Mike]

  Oops, good catch Don. Thanks.

Mike

On 7/3/2010 8:30 PM, Don Wilhelm wrote:
> 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.
>>
>>
>