Expanded frequency coverage The ICR75 covers a frequency range that s wider than other HF receivers 00360000000 MHz This wide fre quency coverage allows you to listen to a variety of communications including ma rine communications amateur radio short wave radio broadcasts and more Guaranteed 012999 MHz and 5054 MHz only High stability receiver circuit Icom s latest wide band technology pro vides highly stable receive sensitivity over the entire receive frequency range The ICR75 makes it easy to catch communi cations world wide Superior dynamic range A wide dynamic range of more than 100 dB 1 1045 dB 2 for 14 MHz band 1025 dB 2 for 50 MHz band and a wellde signed triple conversion system help min imize image and spurious responses for better signal delity 1 Not guaranteed 2 Not guaranteed When PREAMP OFF CW narrow 500 Hz bandwidth 100 kHz channel spacing T win PBT capability The PBT passband tuning function nar rows and moves the IF passband at two stages to ef ficiently eliminate interfering signals DSP capabilities DSP Digital Signal Processor ltering in the AF stage is available with the optional UT 106 DSP UNIT The DSP provides the fol lowing functions Already installed with some versions Noise reduction Pulls desired AF signals from noise Out standing SN ratio is achieved providing clean audio in SSB AM and FM Pull weak signals right out of the noise Automatic Notch lter This automatically minimizes beat signals and protects the receive signal Also the notch frequency is automatically adjusted to follow interfering beat signalsreducing in terference from R TTY signals during SSB operation for example FM mode standard Unlike many other HF50 MHz receivers there is no need to install an additional unit for FM mode reception on the 29 and 50 MHz bands 003 10 100 200 300 500 F requency MHz Measur ing condition Mode USB 10 dB SN 0031799999 MHz PREAMP OFF 18029999999 MHz PREAMP 1 ON 300060000000 MHz PREAMP 2 ON Sensitivity V 600 01 05 10 50 100 Receive sensitivity c haracteristics e xample Measur ing condition F requency 1415 MHz 100 kHz separ ation Mode CW Bandwidth 500 Hz both 2nd and 3rd IF PREAMP A T T OFF 1045 dB PREAMP OFF 1035 dB PREAMP1 ON Intercept points 140 120 100 80 60 40 20 0 160 220 Preamp OFF Signal output Receiv er output le v el dB Preamp1 ON Receiv er input le v e l dBm 140 120 100 80 60 40 20 0 Dynamic rang e c haracteristics e xample 3rd IMD output SN 3 dB N Twin PBT operation Inside and outside dials centered normal position Inside and outside dials rotated opposite twin PBT Inside and outside dials rotated same direction IF shift Noise reduction OFF Comparison of receive signal speaker output Noise reduction ON