May 6, 2016 · TEN-TEC 20, 30, 40, 80 Meter QRP Transceiver Kit – Model 13XX. Enjoy the world of QRP CW operation with one of our single band transceiver kits. Available for 20, 30, 40 or 80 meters. 3 watts power output. Easy to build and simple to operate. Each unit covers a 50 kHz segment determined by you at the time of construction.