The MLFR-0502 from Micro Lambda Wireless, Inc. is a Tunable Filter with Frequency DC to 3 GHz, Tunable Frequency 500 MHz to 2 GHz, Bandwidth 7 MHz, Rejection 30 to 40 dB, Input Power 28 dBm. Tags: Module with Connectors, YIG Filter. More details for MLFR-0502 can be seen below.