Signal Generator Features • N5161A/N5181A, RF analog models: 100 kHz to 12, 3, or 6 GHz (Options 5012, 503, and 506 respectively) N5162A1/N5182A, RF vector models: 100 kHz to 3 or 6 GHz (Options 503, and 506 respectively) N5183A, Microwave analog model: 100 kHz to 20, 31.8, or 40 GHz (Options 520, 532, and 540 respectively) • electronic attenuator (N5161A/62A/81A/82A only) • mechanical attenuator (N5183A with Option 1E1 only) • step & list sweep of frequency, power, or frequency and power • vector models can include waveforms in list sweep • pulse modulation (Option UNU) • narrow pulse modulation (Option UNW) • analog differential I/Q outputs (vector models, Option 1EL) • analog modulation: AM, FM, and ΦM (Option UNT) • arbitrary I/Q waveform playback up to 125 MSa/s (vector models, Option 654) • automatic leveling control (ALC); power calibration • bandwidth control (ALC) • deep amplitude modulation providing greater dynamic range • enhanced assembly replacement • external AM, FM, and ΦM inputs (Option UNT) • external analog I/Q inputs (vector models) • Wideband AM (vector models, Option UNT) • flexible reference input, 1 – 50 MHz (Option 1ER) • GPIB, USB 2.0, and 100Base–T LAN interfaces • improved signal to noise ratio • LO In/Out (Option 012) • LXI is supported (Option ALB) • Digital Bus I/O compatibility with the PXB • manual power search (ALC off) (Option 099 and or instruments starting with serial numbers 4818 and greater) • multiple baseband generator synchronization when using multiple signal generators (master/slave setup) • narrow pulse modulation (Option UNW)• phase noise interference (vector models, Option 432) • internal channel correction (vector models, Option U01) • SCPI and IVI–COM driver • user flatness correction • user settable maximum power limit • two channel power meter display • 10 MHz reference oscillator with external output • 8648/ESG code compatible • real- time modulation filtering • with Signal Studio Software, vector models can generate 802.11 WLAN, W–CDMA, cdma2000, 1xEV–DO, GSM, EDGE, and more