Sennheiser‘s application engineers have used their expertise to develop the ACA 3, a compact and easy to deploy 2 x 4:1 antenna combiner compatible with all analog and digital Sennheiser wireless stationary receivers operating in the supported frequency range of 470 to 798 MHz.
"Passive 2-way True Diversity antenna splitter/combiner for the SpeechLine Digital Wireless microphone series with 2 RF inputs and 4 RF outputs, DECT Range (1880 - 1930 MHz) "
"Passive 4-way True Diversity antenna splitter/combiner for the SpeechLine Digital Wireless microphone series with 2 RF inputs and 8 RF outputs, DECT Range (1880 - 1930 MHz) "