.ut-cat{color:#333;font-family:Arial,Helvetica,sans-serif;line-height:1.5;} .ut-cat h4{color:#1a1a1a;font-size:1.15em;margin:1.5em 0 .5em;padding-bottom:.25em;border-bottom:2px solid #ccc;} .ut-cat h2{color:#1a1a1a;font-size:1.25em;margin:1.2em 0 .4em;} .ut-cat h3{color:#222;font-size:1.05em;margin:1em 0 .3em;} .ut-cat p{margin:.6em 0;} .ut-cat ul{margin:.5em 0;padding-left:1.4em;}.ut-cat li{margin:.25em 0;} .ut-cat img{max-width:100%;height:auto;} .ut-cat table{border-collapse:collapse;width:100%;margin:.5em 0;} .ut-cat th,.ut-cat td{border:1px solid #ddd;padding:6px 10px;text-align:left;vertical-align:top;} .ut-cat td strong{color:#222;} Overview The USG3045V is a 4.5 GHz vector signal generator covering 9 kHz to 4.5 GHz with 0.001 Hz frequency resolution and a level range of −135 dBm to +25 dBm. Single-sideband phase noise typically < −122 dBc/Hz at 1 GHz / 20 kHz offset, amplitude accuracy ≤0.7 dB (Typ.), and frequency switching ≤40 ms make it suitable for both bench R&D and automated test workflows. The USG3045V supports full vector modulation with a 150 MHz real-time baseband bandwidth. As a vector signal generator, the USG3045V adds a full real-time digital modulation engine to the analog signal-source foundation. With 150 MHz of baseband bandwidth, real-time QAM/PSK/FSK/ASK generation, ARB waveform-file playback, multi-carrier and multi-tone modes, and AWGN noise injection for receiver testing, the USG3045V addresses protocol-aware wireless R&D and commercial production test for 5G NR, WLAN, LTE, Bluetooth, ZigBee, and Z-Wave devices. Typical QPSK EVM is 0.4% at a 1 GHz carrier; 5G NR ACPR is typically < −55 dBc at a 3.8 GHz carrier. The USG3045V is suited to wireless-device R&D, calibration labs running spec verification, and commercial production-test stations. Key Features 9 kHz to 4.5 GHz CW Frequency Range — >5 MHz to 4.5 GHz in I/Q mode; 0.001 Hz resolution across the full band. −135 dBm to +25 dBm Level Range — 160 dB dynamic range with 0.01 dB resolution and ≤0.7 dB amplitude accuracy typical. Phase Noise < −122 dBc/Hz at 1 GHz — single-sideband phase noise typical at 20 kHz offset for sensitive vector measurement. Electronic Step Attenuator Standard — 0 to 110 dB range with 10 dB steps; electronic attenuator switches faster with no moving contacts for high-cycle automation. Vector Modulation Accuracy — QPSK EVM 0.4% at 1 GHz typical; 5G NR ACPR < −55 dBc at 3.8 GHz typical. 150 MHz Real-Time Baseband Bandwidth — internal vector engine covers wideband modulation envelopes including Wi-Fi 6/7 channel widths. Real-Time Digital Modulation — QAM, PSK, FSK, ASK with custom filter shapes (RRC, Gaussian, user-defined) and filling settings. ARB Playback, Multi-Carrier, and Multi-Tone Modes — user-defined waveform replay with carrier-aggregated and multi-tone test signal generation. Real-Time AWGN Injection — precise SNR control for receiver sensitivity and dynamic-range characterization. Native ZigBee and Z-Wave IoT Generation — protocol-aware signal generation for IoT module test and incoming inspection. Mobile-Comm Protocol Simulation — 5G NR, WLAN, LTE, Bluetooth, IoT waveform support with UNI-T SignalStudio software (sold separately). AM, FM, and ΦM Analog Modulation — internal, external, or internal + external sources alongside the digital engine. OCXO High-Stability Clock Source Standard — ≤±0.2 ppm/year aging, ≤±10 ppb temperature effects. Built-in 50 MHz Function/Arbitrary Waveform Generator — standard waveforms, sweep, and modulation from a separate LF output. 5-Inch Touch Screen with Signal-Flow Interface — full touch control with intuitive signal-flow-diagram interaction. LAN, USB Host, USB Device, I/Q Baseband I/O Standard — full SCPI automation via LabVIEW, Python, MATLAB, Excel; GPIB available as a factory-installed hardware option (must be ordered with the instrument). Web Control + Device Manager — browser-based remote access plus free PC management software (V2.5.0+). Optional Pulse Modulation — 80 dB on-off ratio with customizable pulse trains. Optional Narrow-Pulse Generator — 40 ns minimum width with 10 ns resolution for radar component test. Optional USB Power Sensor Support (USG3000-PK) — license-activated readback and flatness correction with a user-supplied USB power sensor. CE | cETLus | RoHS Compliant — meets common North American and European safety and environmental standards. Detailed Features High Spectral Purity for Sensitive Receiver and Component Test Single-sideband phase noise typically below −122 dBc/Hz at 1 GHz with a 20 kHz offset is the headline spectral-purity figure that determines whether a generator can stimulate the device under test without contaminating the measurement. Low close-in phase noise matters for adjacent-channel rejection testing on receivers, image-rejection on mixers, and any narrowband filter characterization where the stimulus must be cleaner than the device's own passband behavior. The clock-source architecture supports ≤±0.2 ppm/year aging rate, ≤±10 ppb temperature effects, and ≤±10 ppb line-voltage sensitivity — frequency reference stable enough for calibration-cycle use without external 10 MHz lock, though both 10 MHz reference input and 10 MHz output are available on the rear panel for multi-instrument synchronization. Single-sideband phase noise typical < -122 dBc/Hz at 1 GHz × Single-sideband phase noise typical < -122 dBc/Hz at 1 GHz QPSK EVM 0.4% at 1 GHz, 5G NR ACPR
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