Qmax Test Equipments Pvt Ltd. Manufactures Signal Analysers with High-stability OCXO Time base. Qmax Test Equipments Pvt Ltd. Is ISO 9001 certified company and its marketing and customer support operations are ISO 9002 certified. The Signal Analysers with High-stability OCXO Time base falls under the category of PXI instruments, which is available as `PXI-5660 RF Signal Analysers`. This instrument consists of 9 kHz to 2.7 GHz, 20 MHz real-time bandwidth and 32 or 64 MB memory. It has 14-bit resolution and 64 MS/s digitizer.