Vojtech OK1IAK has created a tiny WSPR beacon TX based on the KD1JV Altoids tin ATS-3b transceiver kit. He uses the ATS3bv-1.5 firmware. For those not familiar with this creation, it is a tiny 6 band CW/digital transceiver kit fitting into an Altoids tin. See OK1IAK's alternate firmware for WSPR with this rig.
