This is 3 Elecraft modules: DL-1 wideband 50 ohm dummy load 20W max.. XG2 signal reference xtal oscillator with accurate 1uv and 50uv output levels, can be used to measure rx sensitivity, s meter cal. etc. switch selected output freq. of 3579, 7040, 14060 Elecraft N-Gen is a wideband noise source that can be used in conjunction with Spectrogram etc. to align if filters, align rf stages in elecraft XV transverters or other HF, vhf and uhf equipment. All are in excellent condition with instruction sheets. Asking $100. for all shipped within conus. Please contact me direct. email@example.com Thank you.