Feature: 1. Featured as Excellent Sensitivity and Accurate, help you to find the best position for DVB-T antenna installation. 2. Designed with a compass for easier and quicker tuning. 3. With buzzer and attenuation control function, easy user-friendly operation. 4. Feedback numbers shows the strength of the signal intuitively. 5. Mini size and light weight, really portable and convenient to carry. Specification: Features: Featured as Excellent Sensitivity and Accurate, help you to find the best position for DVB-T antenna installation. Designed with a compass for easier and quicker tuning. With buzzer and attenuation control function, easy user-friendly operation. Feedback numbers shows the strength of the signal intuitively. Mini size and light weight, really portable and convenient to carry. Operation: 1.Connect the antenna cable to the left F Female and the battery pack cable to the right F Female. Remove any external amplifier* that may be connected to the antenna. 2.Adjust the antenna to the best position by watching the meter's reading. Higher up the scale gives a better signal. If the finder's reading becomes full scale, adjust the level control knob to reduce the reading to around 5 (Turning the knob clockwise will decrease the reading), continue to move the antenna until you have the highest possible meter reading. 3.Remove the finder and replace any amplifier that was disconnected. Important Note: -If your antenna has an internal amplifer, (eg: 01MM-SQ01), it should be powered by an external power supply via a DC power inserter. Make sure the power inserter is positioned between the finder and the antenna. Specifications: Color: blue Material: plastic Frequency range: 170-860MHz Input level range: 65-95dBuv Impedance: 75Ω Insertion Loss: ≤5.0dB Power supply: 9-12V DC Item Size: Approx. 127 * 63 * 35 mm / 5 * 2.48 * 1.38in Item Weight: Approx. 90g / 3.2oz Package Size: Approx. 18.6 * 14.1 * 4.3cm / 7.32 * 5.55 * 1.69in Package Weight: Approx. 197g / 6.97oz Package List: 1 * Satellite Finder 1 * English User Manual 1 * Battery Holder 1 * Power Cable Package List: 1 * Satellite Finder 1 * English User Manual 1 * Battery Holder 1 * Power Cable