15FT-8900R Operating Manual[SCN] Key ([SUB] Key)Key Mode “1” ([SCN] Key: Default)Press this key momentarily to activate the Scanner on the “Right” band.When the “Right” band is set to the Memory mode, press and hold in this key for 1/2second to set up the Scan Skip List or Preferential Scan List.Key Mode “2” ([SCN] Key)Press this key momentarily to make the next key you press act on the “Sub” band (the“ ” icon will blink on the “Sub” band).7 VOL SQL Knob (Right)The inner VOL (Volume) control adjusts the speaker audio level from the “right” re-ceiver. Clockwise rotation increases the audio level.Press and hond in this knob for 2 seconds to turn the radio “on” and “off.”The outer SQL (Squelch) control is used to silence background noise on the “right”receiver. It should be advanced clockwise just to the point where the noise is silenced(and the “ ” indicator on the display turns off), so as to provide the best sensitivityto weak signals.8 DIAL knob (Right)This 20-position detented rotary switch is the tuning dial for the “right” band.Press this knob momentarily to switch the “Main band” to be the “right” band.When the “right” band is set to be the “Main” band in the VFO mode, press this knob toenable rapid tuning (in 1 MHz steps) using this knob.Press and hold in this knob for 1/2 second to switch the operating band on the “right”band between 144 MHz and 430 MHz.FRONT P ANEL C ONTROLS & S WITCHES