IC-F3S & IC-F4S SPECIFICATIONS   Feature IC-F3S ID-F4S RECEIVER SPECS Receive System double-conversion super-heterodyne double-conversion super-heterodyne Intermediate Frequencies 1st 31.05 MHz 2nd 450 kHz 1st 46.35 MHz 2nd 450 kHz Typical Sensitivity 12 dB SINAD: 0.25 V EMF: 20 dB SINAD: 0.63 V 12 dB SINAD: 0.3 V EMF: 20 dB SINAD: 0.79 V Typical Squelch Sensitivity 0.25 V threshold 0.3 V threshold Adjacent Channel Selectivity 70 dB (25 kHz type) 60 dB (12.5 kHz type) 70 dB (25 kHz type) 60 dB (12.5 kHz type) Spurious Response Rejection 70 dB 70 dB Intermodulation Rejection 65 dB 65 dB Audio Output Power 500 mW at 10% distortion 500 mW at 10% distortion External Speaker Connector 3-conductor 3.5 (d) mm (1/8")/8 3-conductor 3.5 (d) mm (1/8")/8 All Specifications are subject to change without notice or obligation. Please e-mail us or call us TOLL FREE (888-713-2589) with questions. Helmet Comm is owned, manufactured and distributed by Precision Electronics © 2000-2001 all rights reserved Precision Electronics Web Site Design by the von Allmen Agency