Optimal Signal Adjustment: Connects to your dish so that you can adjust and find the optimal signal High Precision Detection: 0.2 dB difference in 950 - 2150MHz range for accurate signal measurement Power Requirements: 13-18V DC operating voltage for reliable performance Professional Connectors: LNB to REC connectors with a dB level control for precise signal management Important Usage Note: With LNB/LNB higher than 60 dB, you must use a 5dB attenuator Compact and Lightweight Design: Weight of approximately 4oz with dimensions of 3 inches x 2.4 inches x 1.1 inches for easy portability and installation