User manual ICOM IC-F21GM

[. . . ] INSTRUCTION MANUAL UHF GMRS TRANSCEIVER iF21GM This device complies with Part 15 of the FCC rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. SAFETY TRAINING INFORMATION Your Icom radio generates RF electromagnetic energy during transmit mode. This radio is designed for and classified as "Occupational Use Only", meaning it must be used only during the W ARN ING course of employment by individuals aware of the hazards, and the ways to minimize such hazards. This radio is NOT intended for use by the "General Population" in an uncontrolled environment. [. . . ] Leave the battery pack in the charger for a few more hours (up to 15 hours; depending on battery condition) after the LED indicator turns green, to charge the battery completely. 10 3 BATTERY PACKS ` Battery case (Option) When using a BP-208 OPTIONAL BATTERY CASE attached to the transceiver, install 6 AA (R6) size alkaline batteries as illustrated below. NOTE: Output power is automatically reduced to 1 W to retain sufficient power in case of an emergency, etc. D CAUTIONS · Use ALKALINE batteries only. · Make sure all battery cells are the same brand, type and capacity. Either of the above may cause a fire hazard or damage the transceiver, if ignored. · Never incinerate used battery cells since internal battery gas may cause them to rupture. If the battery case gets wet, be sure to wipe it dry before using it. 11 SET MODE ` Set mode 4 Set mode is used for programming infrequently changed values or conditions of functions. · All settings performed with [CH selector], [OFF/VOL], [MONI], [PTT] and [W/N] keys. D SELECTING POWER RF OUTPUT [CH selector] [OFF /VOL] [MONI] [PTT] [W/N] The RF output can be selected from one of 3 modes. 13) D SETTING THE SIMPLEX/DUPLEX OPERATION The Simplex/Duplex function changes duplex operation to simplex operation. 13­14) D SETTING THE CTCSS TONE FREQUENCY CTCSS (Continuous Tone Coded Squelch System) encoder/decoder are standard, providing quiet stand-by. 15­16) D CTCSS FIND This transceiver can detect the CTCSS tone frequency in the received signal. 19) D SETTING THE DTCS CODE DTCS (Digital Tone Coded Squelch system) encoder/decoder are standard, providing quiet stand-by. 17­18) 12 2 CHAPTER CONTINUED D SELECTING RF OUTPUT POWER The transceiver has 3 output power levels to suit your operating requirements. Low out put power settings during short-distance communications may reduce the possibility of interference to other stations, and will reduce current consumption. q While pushing and holding [PTT], [MONI], turn [OFF/VOL] to power ON. w Push [MONI] to toggle between Low1 (1 W ; Pi), Low2 (2 W ; PiPi) and High (4 W ; PiPiPi). e Turn the power OFF, and then ON again. D SETTING THE SIMPLEX/DUPLEX OPERATION The Simplex/Duplex function changes duplex channels to simplex channels. q While pushing and holding [PTT], [MONI], turn [OFF/VOL] to power ON. (see right. ) 13 CHAPTER CONTINUED 2 · Frequency channel list No. Rx/Tx Freq. *1 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 462. 5500 462. 5750 462. 6000 462. 6250 462. 6500 462. 6750 462. 7000 462. 7250 462. 5625 462. 5875 462. 6125 462. 6375 462. 6625 462. 6875 462. 7125 Auto Scan Tx Freq. *2 Wide/Narrow Narrow Narrow Narrow Narrow Narrow Narrow Narrow Narrow Narrow Narrow Narrow Narrow Narrow Narrow Narrow Orange Black White Note 467. 5500 467. 5750 467. 6000 467. 6250 467. 6500 467. 6750 467. 7000 467. 7250 ----------------------------------------- -----(Unit: MHz) *1: Simplex operation/Duplex receive frequency *2: Duplex transmit frequency Wide/Narrow: Wide FM/Narrow FM (default) 14 4 SET MODE D SETTING THE CTCSS TONE FREQUENCY This transceiver is equipped with 52 CTCSS codes. (See right. ) CTCSS operation provides communication with silent standby since you will only receive calls from group members using the same CTCSS number. [. . . ] Any audio mute functions are cancelled All signals are received while pushing the [MONI] switch. Inaudible condition: This condition mutes ALL signals except those directed to you. Therefore you should check a channel's condition (busy or not) with the monitor function before transmitting. · Push the [MONI] switch momentarily to select the inaudible condition. Only signals containing the proper tone are received D TIME-OUT TIMER After continuous transmission for a pre-programmed period, the time-out timer is activated, causing the transceiver to stop transmitting and automatically selects receive. [. . . ]