The modern OCXO quartz oscillators requirements and parameters

It seems that in last few years the quartz crystal precision oscillators OCXO did reach the limit of parameters improvement. Most of OCXO designers focused their attention on price reduction and practicability of oscillator construction. In Tele and Radio Research Institute new designs of OCXO oscillators fulfilling requirements of military standard MIL-STD-202G were made. In the paper there are described important requirements for military and civil OCXO oscillators and parameters of new designed oscillators. The results of new elaborated oscillators investigations show that the improvement of OCXO oscillators parameters is still possible.