This is a 400~2700M narrowband 50W module. Its core operating frequency covers multiple important frequency bands, including 840-930MHz, 1400-1480MHz, 1560-1620MHz, and 2400-2500MHz. At a working voltage of 28V, it can provide a maximum output power of up to 50W (47.2dBm), with a working efficiency of ≥ 50%. The module has good port standing wave ratio (≤ 1.30) and wide temperature stability (-40 ℃ to+55 ℃). Its size is compact (37.27x111.71x19.5mm, without SMA head), using SMA female head interface and through-hole capacitor power supply. It is suitable for applications with limited space and high efficiency and stable power output requirements.