The NF20941BA-2315.9MHz-2349.1MHz-A from Dynamic Engineers is a Band Stop Filter with Stopband Frequency 2315.9 to 2349.1 MHz, Insertion Loss 1 to 2.5 dB, Power 50 W, VSWR 1.50:1, Operating_Temperature -10 to 50 Degree C. Tags: Module with Connectors, Notch Filter. More details for NF20941BA-2315.9MHz-2349.1MHz-A can be seen below.