LeaningTech SF9505 Mini Digital TV Antenna Satellite Signal Finder Meter with LCD Display and Buzzer Function Dish Network Directv FTA, White Excellent sensitivity and portable with a small size. In-line IF strength satellite signal finder meter, locate satellite signal easily. DC Pass to LNB and internal lighting Use LCD to display the satellite signal. SF9505 owns LCD backlight, buzzer and attenuation control functions.