Frequency reference and electron (NSN 6625-01-548-8261)
Special Features
Frequency range 500khz to 50mhz broadband (input and output), 1vrms level , harmonic distortion less than -40db, non harmonic signals less than -80db, load impedance 50 ohms, isolation greater tha 90db, additive ssb phase noise 1hz at -120db; 10hz at -135db; 100hz at -145db; 1khz at -155db; 10khz at -160db, temperature range 0 to 55 degrees celcius, 0 to 95 percent non-condensing humidity, green led for power on indication and red led for signal output failure