I tried connecting from the 2 prong connection on the side of the QFlash to the PC connection on the 4i, but the PC connection seems to function only for an outgoing signal to the flash unit. Can I use a cable with a 2 prong connection at each end to connect the QFlash to the 4i to trigger it?
The PC socket on the Radio Slave 4i sender is only a sync out signal. The household socket on the side of the sender is for the sync-in. You can use our
# 540 sync out cord - Qflash sync - household to household.