[UK-CONTEST] PTT

[Ian Burns]

I had a similar problem a couple of years ago. I found that the rig 
would key perfectly well using an opto connected to the ptt line on the 
mic socket but not on the packet interface on the rear panel. I resorted 
to a DIL relay as other options were limited at the time.

If your friend wants to use data modes that require USB then this may be 
of interest

http://lea.hamradio.si/~s53rm/FT-1000MP%20WSJT.htm

73
Ian.

Ian White GM3SEK wrote:
> Les Elliott wrote:
>   
>> A club member has an FT1kMP, wants to try digital modes, using an interface
>> which uses an opto-isolator from serial port to PTT line on the 5 pin DIN
>> 'Packet' socket, rig will not key, any suggestions?
>>     
>
> Has he tried the obvious - shorting the PTT line with a screwdriver, at 
> the output from the opto?
>
> Likewise, has he confirmed a change in voltage at the input of the opto 
> when the computer is supposed to be keying the PTT?
>
>
>