Features: Featured as Excellent Sensitivity and Accurate, help you to find 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 strength of signal intuitively. size and light weight, really portable and convenient to carry. Operation: 1.Connect antenna cable to left F Female and battery pack cable to right F Female. Remove any external amplifier* that may be connected to antenna. 2.Adjust antenna to best position by watching meter's reading. Higher up scale gives a better signal. If finder's reading becomes full scale, adjust level control knob to reduce reading to around 5 (Turning knob clockwise will decrease reading), continue to move antenna until you have highest possible meter reading. 3.Remove 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 supply via a inserter. Make sure inserter is positioned between finder and antenna. Specifications: Color: blue Material: Frequency : 170-860MHz Input level : 65-95dBuv Impedance: 75Ω Insertion Loss: ≤5.0dB supply: 9-12V 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 * Cable 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.