ความถี่ F2 อาจจะเป็น such that สัญญาณ IF 426 is suitable for transmission over the cable 322 (เช่น, 600 MHz), so as to reduce cable loss. Eventually, the resulting IF signal 426 may be routed from the ODU 320 to the IDU 324, through the N-plexer 428, and over the cable 322.