DA08 is an adjustable digital-display RF attenuator developed based on the ARW637 chip, integrating physical knob operation and OLED real-time display. It provides high-precision attenuation adjustment over a wide frequency range, requiring no complex digital control to get started quickly. It features strong industrial-grade adaptability and compact size design, purpose-built for debugging and testing of various RF signal links. Widely applicable to signal power adjustment in 4G/5G base stations and microwave radio stations and other industrial communication systems, link attenuation control in spectrum analyzer, vector network analyzer and other instrument testing, as well as signal link debugging in medical RF equipment, radar systems and other military and medical fields, and signal link verification in various RF module R&D and scientific research experiments.
Frequency range: 9 KHz–8 GHz Attenuation range & step: 0–31.5 dB, 0.5 dB step Adjustment error: ≤±0.2 dB (≤3 GHz); ≤±0.25 dB (>3 GHz) Max input power: 26 dBm Operation & display: physical knob adjustment, OLED real-time display of attenuation value Interface & power: SMA connector; Type-C power (DC 3.6–15V)
