The Siglent SHA861A is a 9 kHz–3.6 GHz handheld spectrum analyzer with -165 dBm/Hz DANL, 110 MHz real-time analysis, and 5G NR/LTE OTA testing. It offers VNA (S11/S21), cable and antenna tests, EMI measurements, and advanced modulation analysis. Rugged and portable with an 8.4" touchscreen, GPS mapping, and 2.5-hour battery for powerful RF fieldwork.