User manual ICOM IC-T31CP

[. . . ] The transceiver will perform best if the microphone is 5 to 10 cm (2 to 4 in) away from the lips and the transceiver is vertical. RWARNING!NEVER EXPLICIT DEFINITIONS The explicit definitions below apply to this instruction manual. DEFINITION Personal injury, fire hazard or electric shock RWARNING may occur. CAUTION NOTE Equipment damage may occur. [. . . ] Adjust the [VOL] control to the desired level. · While pushing [MONI], rotate [VOL]. Set the squelch level. 6 MR · While pushing [MONI], rotate [DIAL]. · 4 selections are available, "OP" (open), "AT" (automatic), 1 and 2. Set an operating band and frequency. 0 MR When a signal is received: Squelch opens and audio is emitted from the speaker. The S/RF indicator shows the relative signal strength. Push [H/L] to toggle output power between high and low. · "LOW" appears when low output power is selected. Push and hold [PTT] to transmit; then speak into the mic. s Lock function The lock function prevents accidental frequency changes and accidental function activation. Slide [LOCK] up or down to set the lock function ON or OFF, respectively. · "L" appears while the lock function is activated. · [PTT], [POWER], [VOL], [MONI], and [H/L] can be used regardless of this setting. · Do not hold the microphone too close to your mouth or speak too loudly. · The TX/RX indicator lights red. · The S/RF indicator shows the output power selection. Release [PTT] to return to receive. CONVENIENT Monitor function: Push and hold [MONI] to listen to weak signals that do not open the squelch; or push [MONI] twice to monitor a signal without having to continuously hold [MONI]. Squelch control: The transceiver employs a noise pulse count system and therefore, squelch is adjusted automatically, when "AT" is selected. 12 BASIC OPERATION 3 s Repeater operation D General When using a repeater, the transmit frequency is shifted from the receive frequency by the offset frequency. It is convenient to program repeater information into memory channels (p. 15). D Tone information Some repeaters require a tone to be accessed. In this case, precede step at left with the required tone. Note that memory channels are not grouped according to band. In other words, a given memory channel can be programmed with either a VHF frequency or a UHF frequency. This is not the case with call channels. The following can be programmed into memory/call channels: · Operating frequency · Duplex direction with an offset frequency (pgs. 13, 14) · Subaudible tone encoder or tone squelch ON/OFF with a tone (CTCSS) frequency (pgs. 20) 4 D Programming during selection Push [VFO] to select VFO mode. Set the desired frequency: Set other data, such as repeater information, etc. Push [S. MW] momentarily. · "X" flashes. · Do not hold [S. MW] for more than 1 sec. , otherwise the memory channel will overwrite the displayed number. L OW DUP DUP MR L OW DUP MR Rotate [DIAL] to select the desired channel. · Call channel and scan edge channels, as well as regular memory channels, can be programmed in this way. · If you want to confirm the VFO frequency, push [S. MW] momentarily. L OW DUP L OW Push [S. MW] for 1 sec. to program. · "X" stops flashing. 15 4 ADVANCED FUNCTIONS D Memory/call call/memory Select the memory/call channel to be transferred: Push [MR] (or [CALL]) to select memory (call) mode. [. . . ] Squelch does not open for · Tone squelch is activated. No beep sounds even when · Beep tones are turned OFF in initial set mode. · Set beep tones ON in initial set mode. 24 27 7 BP-170 BP-171 BP-172 BP-173 BP-180 OPTIONS D Speaker-microphones OPER. [. . . ]