User manual ICOM IC-F121

[. . . ] INSTRUCTION MANUAL VHF TRANSCEIVER iF111 iF121 UHF TRANSCEIVER iF211 iF221 IMPORTANT READ ALL INSTRUCTIONS carefully and completely before using the transceiver. PRECAUTION RWARNING!NEVER connect the transceiver to an AC outlet. This may pose a fire hazard or result in an electric shock. NEVER touch the transceiver (especially the heat sink) when transmitting continuously for long periods. [. . . ] Push this key again to re-start scanning. ¡ TX CODE KEY Select a transmit 5-tone code (station code) chanTX CH nel. 5 PANEL DESCRIPTION ¡ SCRAMBLER KEY Push and hold to turn the voice scrambler funcSCRM tion ON. Push this key to turn the voice scrambler function OFF. NOTE: · The optional UT-109 (#02) or UT-110 (#02) VOICE SCRAMBLER UNIT is required. ­ UT-109: Non-rolling type. 1020 (4 groups × 255) codes are available. 1 ¡ USER SET MODE KEY Changes the contents of the items in the User Set SET mode. 10. · Push and hold this key for 1 sec. Push this key again momentarily to select the desired item. Push [ ]/[ ] to set the desired level/condition. Push and hold this key again to exit set mode. · User set mode also available via the `Power ON function'. · This transceiver requires version #02 of these units. Do not install version #01, as they are not compatible. · Some PC board modifications are required when installing UT-109 or UT-110. Please refer to `Optional UT-109 or UT-110 installation'. (p. 16) · Please contact your dealer for details. 6 2 q Push [ OPERATION I Channel selection Several types of channel selection are available. The methods may differ according to your system setup. NON-BANK TYPE: Push [ ]/[ ] to select the desired operating channel in sequence; or, push one of the [CH 1] to [CH 4] keys to select a channel directly. BANK-TYPE: Push [BANK] to select the desired bank number or name. 0 5 1 6 2 7 3 8 4 9 AUTOMATIC SCAN TYPE: Channel setting is not necessary for this type. When turning the power ON, the transceiver automatically starts scanning. IMPORTANT!: To maximize the readability of your signal; Pause briefly after pushing [PTT]. Hold the microphone 2 to 5 cm from your mouth, then speak into the microphone at a normal voice level. 8 2 OPERATION D DTMF transmission If the transceiver has a [DTMF] key, the automatic DTMF transmission function is available. To transmit a DTMF code: q Push [DTMF]--a DTMF code channel appears. [. . . ] input power : 5 W HM-100N/HM-100TN/HM-152/HM-152T/HM-148 · HM-100TN/HM-152T : DTMF microphone · HM-148 : Heavy duty microphone SM-25 Desktop microphone. UT-105 SmarTrunk IITM Logic Board Provides SmarTrunk IITM capabilities. UT-108 DTMF DECODER UNIT Provides pager and code squelch capabilities. UT-109/UT-110 (#02) VOICE SCRAMBLER UNIT · UT-109 : Non-rolling type (max. [. . . ]