Applications: Suitable for amateur (HAM) radio, RF amplification and signal test equipment to enhance signal strength and quality Technology: Adopts advanced passive frequency multiplication technology to effectively increase frequency without additional power Manufacturing quality: Rugged structural design, reliable and durable in various operating environments Easy integration: Compact module can be easily integrated into existing equipment with only a few adjustments Specification: HMC187: DOUBLER, 0.85 - 2.0 GHz INPUT, Conversion Loss: 15 dB, Fo, 3Fo, 4Fo Isolation: 40 dB, Input Drive Level: 10 to 20 dBm Interface type:SMA external thread internal hole The product appearance and printed words may vary depending on the batch, but this does not affect use. Color:As Shown Material:PCB Package Contents: 1 * Passive Frequency Doubler Module 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.