1. Rf Limiters Are Used For Input Protection Of Low-Power Receiving Equipment Such As Pre-Low Noise Amplifiers, Sdr Receivers, And Spectrum Analyzers. 2. Can Effectively Resist Esd Damage. 3. Can Also Be Used For Input Protection Of Shortwave Receivers. 4. Contains A Sturdy Aluminum Alloy Shielding Shell, No Leakage, No Interference, Compact And Easy To Use 5. It Is A Common Device For Radio Frequency And Microwave Technology Experiments. Model:Limiter 0dBm-10dBm-20dBm-30dBm-36dBm Impedance:50 Ohms Insertion loss:Less than 0.2dB 1GHz or 0dBm Less than 2dB 1-3GHz or 0dBm Less than 3dB 3-6GHz or 0dBm Maximum input power:20dBm 1dB limiting power:Less than 0dBm or 10dBm or 20dBm or 30dBm or 36dBm Interface:SMA Note:Different Batches May Have Differences In Product Appearance, Color, And Printed Characters, Which Will Not Affect The Use Colour:Gold Material:MetalandPlastic Size:without shell:about 10x25 (mm) without protruding SMA Dimensions with shell - length, width and height:about 45x25x12(mm) without protruding SMA Package Contents: 1 x Rf Limiter Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is 1-3cm. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.