011 Four-level scrambled ones. Transmits a scrambled, constant high logic level as a four- level (2B1Q) signal. Feedback polynomial determined by the htur_lfsr control bit. 100 Reserved. 101 Four-level scrambled data. Scrambles and transmits the four-level (2B1Q) sign and magnitude bits from the channel unit transmit interface. Feedback polynomial determined by the htur_lfsr control bit. 110 Two-level unscrambled data. Constantly forces the magnitude bit from the channel unit transmit interface

• Never expose a detached battery case to water. If the battery case gets wet, be sure to wipe it dry before using it. NOTE: When the optional battery case is attached, the battery type must be selected to “DRY BATT” when turning the transceiver ON. (p. 10) BP-240 w 4 5 Fig.2 Fig.3 e r t 6 6 P MB-93 contents Qty. q Belt clip ……………………………………………………… 1 w Base clip …………………………………………………… 1 q w Attaching q Release the battery pack if it is attached. (p. 2) w Slide the base clip in the direction of the

Only Icom battery packs are tested and approved for use and charge radios or Icom charger. Using third-party or counterfeit battery packs or charger may cause smoke, fire, or cause battery to burst. D DDBattery caution R DANGER! DO NOT hammer or otherwise impact the battery. Do not use the battery if it has been severely impacted or dropped, or if the battery has been subjected to heavy pressure. Battery damage may not be visible on the outside of the case. Even if the surface of the battery doe

(p. 7) i FUNCTION DISPLAY (p. 6) Displays a variety of information such as an operating channel number/name, 2-tone code, DTMF numbers, selected function, etc. PANEL DESCRIPTION 2 2 o EXTERNAL MICROPHONE/SPEAKER Connect an optional speaker-NOTE: Connect or disconnect the optional after the transceiver is turned OFF. Jack cover NOTE: Attach the jack cover when the optional equipment is not used. See (p. 3) for details. ! 0 VOLUME CONTROL [VOL] Rotate to turn the power ON/OFF and adjusts the audio

Turn the power off and start over in this case. DBattery type selection The battery type must be selected battery type when turning the transceiver Ask your dealer for details. q Turn the power OFF. w While pushing and holding [Emer] and [PTT], power ON with rotating [VOL] to toggle the attaching type. • After the display appears, release [Emer] and [PTT]. • “DRY BATT” is displayed for about 3 sec. then “ L” appears when the battery case operation is selected. In this case, the transmit output p

The photo shows the 10-key version VHF transceiver. IMPORTANT READ ALL INSTRUCTIONS carefully and completely before using the transceiver. SAVE THIS INSTRUCTION MANUAL— This instruction manual contains important for the IC-F3021T/S, IC-F3023T/S, IC-F3026T/S VHF TRANSCEIVERS and the IC-F4021T/S, IC-F4023T/S, ICF4026T/ S UHF TRANSCEIVERS. EXPLICIT DEFINITIONS WORD DEFINITION RWARNING Personal injury, fire hazard or electric shock may occur. CAUTION Equipment damage may occur. NOTE If disregarded,

What is “zone”? — The desired channels are into a zone according example, ‘Staff A’ and ‘Staff B’ are assigned into a “Business” zone, and ‘Cindy’ are assigned into a “Private” zone. PANEL DESCRIPTION 2 SCAN A KEY “ S SSC CCN NNA AA” . This key’s operation depends on the Power ON Scan setting. When the power ON scan function is turned OFF; Push to start and cancel scanning operation. In case of transmission during scan, cancels scanning. When the power ON scan function is turned ON; Push to paus