Eagle Aspen Dual Polarity Dual Output LNBF. The Eagle Aspen Linear LNBF is a replacement LNBF for satellite antennas made by PrimeStar, Andrew, Channel Master and Globecast also known as 70E, 75E and 84E series satellite antenna. Replaces all single and dual output LNBF. The Eagle Aspen is a twin-switched 270 KU dual output LNBF meaning each output gives you both vertical and horizontal polarities/channels at the same time. The advantage of this type of LNBF is you will no longer need a multi-switch splitter for two receiver installations or any delay when changing channels. Mounting holes 1 5/8 center-to-center.