Saluki SK9901x family has launched four RF multi-purpose testers: SK9901S+, V, M, and Q. Their main function is single-port vector network analysis (VNA, S11). SK9901Q does not have a built-in bridge. When an external directional coupler is connected, the S11 function is the same as other models. All models also support vector transmission tests (S21 scalar and vector), simple spectrum analyzer, field strength meter, RF signal source, audio signal source and other functions.
 
Main Functions
1. Transmission measurement S21(Filter adjustments, measuring amplifiers, verifying directivity of antennas)
2. Reflection measurement S11(Impedance matching network adjustment, antenna feeding system quality evaluation. Except for the SK9901Q, which requires an external coupler to measure S11, the coupler can be purchased separately.
3.RF source and audio signal source
4. Time domain reflection(DTF) measurement
5. Limited Spectrum display and field strength observation
 
Recommended Applications
The SK9901 is mainly used for adjusting various RF circuits, such as filters, amplifiers, splitters, combiners; testing input/output impedance, evaluating antenna feeding system and detecting equipment’s signal amplitudes at all levels. It can also do field strength measurement, which is useful for checking  the correct operation of low powered devices with integrated antennas and when searching for interference sources etc.