TX/RX's 85-58 series, 350 – 520 MHz, hybrid directional couplers for power division and signal distribution applications. The broad array of splits facilitates balanced signal distribution in the most comprehensive systems. They largely eliminate the near-far problem and maximize the cost-efficiency of the signal boosters. Bi-directional nature of the couplers allows them to be used for two-way communications with minimal loss above the desired coupling value.  10dB coupling value. 5 watt load on 4th termination.