Purpose and key benefit Isolates DC power when testing RF modules so measurement instruments are protected and test results remain accurate. Prevents direct connection of test equipment to a device DC supply, eliminating risk of damaging spectrum analyzers or signal generators and avoiding measurement interference. What it does Acts as a DC isolation feed for antenna RF paths, allowing RF signals to pass while blocking DC from reaching connected instruments. Intended use: connect your instrument through this device to isolate the DC supply during module testing. Performance and specifications Working frequency: 50 MHz – 6 GHz Insertion loss: ≤ 0.8 dB Function: antenna RF feed with DC isolation Compatibility and how it fits into test setups Designed for use in test benches where spectrum analyzers and signal generators must not be directly connected to a module’s DC supply. Use between an antenna feed and measurement equipment to keep DC off the instruments while preserving RF performance throughout the specified frequency range. Practical use scenarios 1. Bench testing an RF module: isolate the DC supply of the module under test while routing the antenna RF feed to a spectrum analyzer to measure transmit/receive characteristics without exposing the analyzer to DC. 2. Characterizing an antenna or RF front end: provide an isolated RF feed to a signal generator or network analyzer when the device under test requires a separate DC feed. 3. Field verification of transmitter modules: connect the module’s antenna feed to measurement equipment through the isolator to avoid accidental DC backfeed during on-site checks. Why choose this device Ensures low-loss RF transmission across a wide band (50 MHz–6 GHz) with insertion loss of 0.8 dB or less, maintaining measurement fidelity. Simplifies safe integration of spectrum analyzers and signal generators into test setups that include DC-powered modules by providing required DC isolation. Installation note Connect the instrument through this device to provide DC isolation during testing. Do not connect a spectrum analyzer or signal source directly to a DC power supply; they must be isolated.