[hpsdr] Transmit switch timing question

[Paul Fletcher]

Hi all,

Continuing on with my scheme to integrate the HPSDR with a PA and filters 
etc, I'm getting ready to sort the T/R sequencing scheme. Has anyone made 
any measurements with regard to the delay between the PTT out line (pin 13) 
being asserted and RF appearing out of Penny (and vice versa)? I don't have 
a storage scope here so can't easily measure the timings. I would like to 
know this as I have a few options with switching schemes.

Any help appreciated.

Regards,
Paul M1PAF