Additional Features: Frequency Range: 250 kHz to 3 GHz Output level: -143 to +13 dBm Resolution: 0.01 Hz output, 0.01 dB level Signal Purity: -145 dBc/Hz at 5 MHz offset Seven Expansion Slot Broadband vector modulation (DC to 30 MHz) Excellent adjacent channel power characteristics (-68dBc/Ch at 5 MHz and -75dBc/Ch at 10 MHz) AWGN source (option) Power control function (Transmit Power control) Generation of multiple waveforms up to 512 channels (option) Supports chip rates up to 16.5 Mcps Superior AM and FM analog modulation functions Support for various digital modulation types including 3GPP, GSM, cdmaOne (option) The Anritsu MG3681A is a high performance digital modulation signal generator that incorporates a broadband vector modulator. It has a frequency range of 250 kHz to 3000 MHz, covering the frequency bands of all major mobile communications systems. Various modulated signal waveforms can be generated with the optional expansion units and associated software.