A ham radio transceiver  (Transmitter and Receiver)  meant for Voice and Morse Code communication in the shortwave bands (20m/ 14-14.350 MHz).This model is developed by Dr.Ashutosh Singh, VU2IF of Amateur Radio Association (New Delhi).

ATS-1 is a popular model among the indian homebrewers which can be assembled at a reasonable price. Construction details of this rig can be found in the "SPARK" (Vol 13 No.2, 1995)-A journal of the Airwaves Society of India (GPO Box 320, New Delhi-110 001).