Applications: Suitable for amateur (HAM) radio, RF amplification and signal test equipment to enhance signal strength and qualityTechnology: Adopts advanced passive frequency multiplication technology to effectively increase frequency without additional powerManufacturing quality: Rugged structural design, reliable and in operating environmentsEasy integration: Compact module can be easily integrated into existing equipment with only a few adjustmentsSpecification:HMC188: DOUBLER, 1.25 - 3.0 GHz INPUT, Conversion Loss: 15 dB, Fo, 3Fo, 4Fo Isolation: 45 dB, Input Drive Level: 10 to 20 dBmInterface type:SMA external thread internal holeThe product appearance and printed words depending on the batch, but this does not affect use.Color:As ShownMaterial:PCBPackage Contents:1 * Passive Frequency Doubler ModuleOnly 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.