Universal device for radio amateurs "Signal" (UPR-1).

Instruments for adjusting and controlling the PTA.The "Signal" (UPR-1) universal device for radio amateurs has been produced since 1981 by the Penza plant "VEM". The device is designed to observe and study the forms of electrical signals, to power various radio devices and to receive sinusoidal low frequency signals necessary for repair, adjustment or testing of equipment. Read more in the instructions.