Kenwood TK-880 Service Manual

Also see for TK-880 series: Programming instructions Instruction manual Instruction manual Instruction manual Instruction manual

3TK-880/H5. INSTALLATION PLANNING – CONTROL STATIONS5-1. Antenna systemControl station. The antenna system selection dependson many factors and is beyond the scope of this manual.Your KENWOOD dealer can help you select an antenna sys-tem that will best serve your particular needs.5-2. Radio locationSelect a convenient location for your control station radiowhich is as close as practical to the antenna cable entrypoint. Secondly, use your system’s power supply (whichsupplies the voltage and current required for your system).Make sure sufficient air can flow around the radio and powersupply to allow adequate cooling.SERVICEThis radio is designed for easy servicing. Refer to theschematic diagrams, printed circuit board views, and align-ment procedures contained in this manual.NoteWhen you modify your radio as described in system set-up, take the following precaution.The rating of pin 7 (SB) of the accessory connector cable(KCT-19) on the rear of the radio is 13.6V (1A). Insert a 1Afuse if you use the SB pin for external equipment.Accessory connectorcable (KCT-19)If you do not intend to use the 3.5-mm jack for the exter-nal speaker, fit the supplied speaker-jack cap (B09-0235-05)to stop dust and sand getting in.GENERAL / OPERATING FEATURESSpeaker-jack cap(B09-0235-05)1. Operation FeaturesThe TK-880/880H is a UHF FM radio designed to operatein both trunking format (LTR model) and conventional for-mat (Conventional model). The programmable features aresummarized.Model Trunking format Trunking modeConventional format Conventional mode1-1. Trunking FormatThis format can handle up to 32 systems with up to 250groups in each system. The transceiver can be used in bothtrunked mode and conventional mode. Systems, groups,and their functions are programmed.1-2. Conventional FormatThis format can handle up to 250 groups with 250 chan-nels in each group. The transceiver can be used only in con-ventional mode. Groups, channels, and their functions areprogrammed.2. Transceiver Controls and Indicators (Fig. 1)2-1. Front Panel ControlsAll the keys on the front panel are momentary-type pushbuttons. The functions of these keys are explained below.• POWER keyTransceiver POWER key. When the power is switchedoff, all the parameters, such as the system and group intrunking format, and the group and channel in conventionalformat, are stored in memory. When the power is switchedon again, the transceiver returns to the previous conditions.• SYSTEM UP/DOWN key(Trunking format, programmable)• GROUP UP/DOWN key(Conventional format, programmable)• SCAN key (Programmable)• MONITOR key (Programmable)• A, B, C and D key (Programmable)• VOLUME UP/DOWN key (Programmable)• BUSY/TX LEDThe BUSY indicator (Green LED) shows that the channelis in use. The TX indicator (Red LED) shows that you aretransmitting.13+–761315