AP3S2-20.000MHZ-ERB AP3S2-26.0000-ER AP3S2-26.000MHZ-ER AP3S2-26.000MHZ-ERB AP3S2-26.000MHz-ER-B AP3S2-26.000MHz-ER-B-T AP3S2-26.000MHZ-ERB-T AP3S2-26.000MHZ-NRB AP3S2-26.000MHZ-NRBT AP3S2-27.0MHZ-LC