No experience with the Tailgater or with dry camping. Have you contacted the manufacturer of the Tailgater to see if they can provide the AMP draw info? I think there are a few different models of the antenna so they should be able to provide info on your specific model. Also consider the draw from the receiver and your TV.
Has anyone had experience with using the portable satellite while dry camping. I have 2 AGM batteries at 115 amp hours. Cant find specs on amps on the dish. thanks....Hendo
Most portable satellite antennas are powered through the coaxial cable from the satellite receiver and have minimal effect on the receiver's power consumption, especially after the antenna is locked on the satellite. Your TV set and the satellite receiver will be the main drains on your battery while you're dry camping. Turning off your inverter when you're not watching TV will also help prolong battery life.