The R&S®ZNH is a portable full 2-port vector network analyzer developed by Rohde & Schwarz, designed for outdoor on-site RF maintenance, base station antenna & cable fault troubleshooting, automotive radar field debugging and fast on-site production spot checks. Four frequency variants are available: 30 kHz ~ 4 / 8 / 18 / 26.5 GHz. Equipped with a built-in four-receiver independent coherent architecture, it natively supports full four-term S-parameter (S11/S21/S12/S22) bidirectional measurement without external add-on modules.

Weighing only 3.1 kg with rugged IP51 dustproof and waterproof housing, it features a 7-inch anti-glare color touchscreen plus backlit physical keys for clear operation under strong outdoor sunlight and dusty workshop environments. A foldable rear stand enables vertical and horizontal placement, and the built-in rechargeable battery delivers up to 4 hours of continuous operation.