PMI Model No. FD-160M-100M-1515 is a frequency discriminator that operates at a center frequency of 160 MHz.  Operating Frequency is 110 to 210 MHz; Sensitivity into 50 Ohms of 9.5 to 10 mV/MHz; Linearity @ 25°C of ±3 %, @ 0°C to 60 °C of ±5 %; Input Dynamic Range of -10 to 0 dBm; Input VSWR of 1.5:1; and a Video Out vs. Input Frequency of 1 V.  This model uses DC Power Supply of +15 V @ 400 mA, -15 V @ 400 mA contains SMA female connectors in a housing measuring 4.63" x 1.50" x 0.47".  https://www.pmi-rf.com/product-details/fd-160m-100m-1515