The SBL-1+ from Mini Circuits is a frequency mixer with an RF frequency from 1 MHz to 500 MHz. It has 7 dBm of LO power, LO/RF Isolation of 45 dB, an excellent conversion loss of 5.6 dB and has a VSWR up to 1.80:1. The mixer has a rugged welded construction making it ideal for VHF and defence & federal communication applications.