[CQ-Contest] SO2R question

[K4RO Kirk Pickering]

On Tue, Dec 03, 2002 at 06:08:33PM -0500, k3ft at erols.com wrote:
>  When running the SO2R using the Top Ten Box (as an example) where it
> swtiches the headphones to S&P rig while RUN rig is Tx, does it lock             > out the PTT from the S&P rig so you cannot TX with S&P rig until RUN
> rig is finished TX? Then if you key S&P rig does it lock out RUN rig?

Yes.

Most contest software that I am aware of will not allow 
simultaneous transmission on more than one radio.  The
computer can only key one radio at a time. Some ops use 
two computers for SO2R.  In such cases, they must build
a lockout device to prevent simultaneous transmission.

Receive audio switching is left up to the imagination,
but only one transmitted signal is permitted for Single Op.

-Kirk  K4RO