The APSIN6010 is a low phase noise, extremely fast-switching RF signal generator with micro-Hz frequency resolution, and precisely leveled power range from -130 to +13 dBm. It combines excellent signal quality, highquality analog modulation and fast switching capabilities. Flexible and simultaneous modulation allows complex signal simulation. The internal OCXO guarantees a high stability time base and can be locked to an external reference in the range of 1 to 250 MHz. The modular design simplifies maintenance and minimizes cost of ownership.