433,92 MHz OOK SAW868.35 MHz OOK SAW TX ceramic design.The SVT2x is a new concept design series which combines a new SAW stabilized circuit design and hybrid ceramic construction to achieve high stability improved performances. 'A' version is for OOK modulation while 'S' version employes a gaussian shaped fast data rate ASK modulation. The SV ceramic layer new design is the innovative approach STE offer on the RF wireless market of SRD: full reliability, stability over temperature range, reduction of mechanical stress are some of the advantages STE launch on the market with the new SV line of SRD low cost ceramic modules.