The VSG25A hardware features a 12-bit I/Q baseband arbitrary waveform generator which can be clocked at virtually any frequency from 54 kHz to 180 MHz and includes a 4096×16 bit pattern buffer for built-in or custom modulation.The included software automatically generates:CW: 100 MHz to 2.5 GHz -40 dBm to +10 dBmUnspecified operation down to 80 MHz or -70 dBm to +13 dBmAM / FM: 30 Hz to 40 MHz modulation rates sine triangle square rampPulse: 6 ns to 25 ms width 12 ns to 1 second periodMulti-tone: Up to 1023 tones with optional center notchUse random phase + notch for Noise Power Ratio testingUse parabolic phase for best signal / noisePSK: BPSK DBPSK QPSK OQPSK DQPSK π/4 DQPSK 8-PSK D8PSK 16-PSK4k to 45M symbols per secondOptional raised cosine root raised cosine filteringUp to 512 symbols streamed continuously in a loopBinary symbol editor features 1-click insertion of PN7 / PN9 sequencesQAM: QAM-16 QAM-64 QAM-256 (same features as PSK)ASK / FSK: 4k to 45M symbols per secondOptional Gaussian filteringUp to 512 symbols streamed continuously in a loopSweepArbitrary Custom ModulationLoad a CSV file with I and Q values specify center frequency amplitude pattern length (up to 2048) pattern period (up to 65535) and clock rate.The VSG25A vector signal generator does have some limitations. The pattern buffer is small and cannot be upgraded. There is no reconstruction filter on the I/Q baseband resulting in out-of-band spurious signals and there is a single 2.7 GHz low pass filter on the RF output so 3rdharmonics below 3.6 GHz may need to be filtered externally. If these are not show-stoppers for you the VSG25A is an unbeatable value.FREQUENCY RANGE