Issue: 01 Specification AXIOM50 Oscillator type : VHF OCXO - Ultra low noise Parameter Standard frequencies Frequency stability Initial tolerance vs. temperature in operating temperature range Operating temperature range vs. supply voltage variation vs. load change Long term stability per day Long term stability (aging rate) Frequency adjustment range Mechanical Frequency Control Electronic Frequency Control (EFC) EFC voltage VC EFC slope (∆f / ∆VC) EFC linearity EFC input impedance RF output Si.