Quantic PMI Model ISO-140M160M-18-300W-NFF is an isolator that operates over the frequency range of 0.14 to 0.16 GHz with a maximum insertion loss of 0.6 dB and a minimum isolation of 18 dB. Package size is 2.5" x 2.21" x 0.59" and is outfitted with N female connectors.