Évaluations - 3, GPA: 4
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2 Repeatedly press [TONE] until "CT" appears. • Each time you press [TONE] , the selection changes as shown below. CTCSS ("T") ("CT") No Indicator Tone 3 Select the desired CTCSS frequency. • To select this, refer to "Selecting a Tone Frequency" {page25} and follow steps 2 to 4. 4 When you are called: The squelch of your transceiver opens only when the selected tone is received. When you make a call: Press and hold Mic [PTT] . Note: . You can select a separate tone frequency for the CTCSS and Tone functions. . When using DTSS or Page with CTCSS, the squelch opens only if the correct tone is received and the received DTSS code or Page code matches the code stored in your transceiver. . If you select a high tone frequency, receiving audio or noise that contains the same frequency portions may cause CTCSS to function incorrectly. To prevent noise from causing this problem, select an appropriate noise squelch level using the SQL control. ¦ Automatic Tone Frequency ID This function automatically identifies the frequency on a received signal. 1 Press [TONE] (1 s) to activate the function. • A tone frequency display replaces the frequency display and the 1 Hz decimal begins blinking. • When a signal is received, the transceiver begins scanning through all tone frequencies in order to identify the incoming tone frequency. When the frequency is identified, a beep sounds, and the identified frequency appears and blinks. The identified frequency is programmed in place of the currently set CTCSS frequency. 2 Press any key to cancel the function. 49 DUAL DUAL DTSS provides selectively communicate The squelch on the transceiver (Dual Tone Multi-Frequency) programmed in this transceiver. You can select a 3-digit code from among 1000 combinations, Note: . Be aware that audible DTMF tones from other transceivers near you may be picked up by your MC-53DM or MC-45 microphone. If so, this could prevent the functions described in this chapter from working correctly. . DTSS does not function while you are storing DTSS codes even if a code is received that matches one already stored in memory. STORING DTSS CODES 1 Select the desired band. 2 Press [F], [DTSS] to switch the DTSS function ON. • "DT" appears. 3 Press [F] (1 s), [C.SEL] . • The current DTSS blinking. The default is 000. 4 Use the Tuning control or Mic [UP]/[DWN] to select the first digit. • When using the MC-53DM microphone, you can three digits by simply pressing numeric keys in sequence. 5 Press [ s sssss] . • The second digit blinks. 6 Repeat Steps 4 and 5 to select the second and third digits. 7 To switch the DTSS function OFF, repeat pressing [F] , [DTSS] twice. Note: The selected DTSS code also can be stored in a memory channel or the Call channel. 50 USING DTSS 1 Select the desired 2 Press [F], [DTSS] to switch the DTSS • "DT" appears. 3 Select the appropriate DTSS code {page 4 When you are called: The squelch of your transceiver opens only when stored DTSS code is received. • If, after DTSS has opened the squelch, no signal is received for more than 2 seconds, the squelch will close. When you make a call: Press and hold Mic [PTT] to transmit your DTSS code. • Each time you press [PTT] , the DTSS code is transmitted for about 0.5 seconds. After establishing a contact, you can eliminate this by switching the DTSS function OFF. 5 To switch the DTSS function OFF, repeat pressing [F] , [DTSS] twice. Note: . DTSS may not function in the following situations: • The other station is using a battery saver function. • A repeater ID and the DTSS code are received simultaneously. If difficulty is experienced in these cases, press [MR] while in the transmit mode. The DTSS code is re-transmitted. . DTSS cannot be used with some repeaters. . DTSS also may not function if buttons are pressed or the VOL control is turned while a valid DTSS code is received. . Both the DTSS status and a DTSS code can be stored in a memory channel or the Call channel. Further, when recalling either a memory channel or the Call channel with DTSS status ON while using the VFO with Page switched ON, page is given priority and the DTSS status switches OFF. 51 ¦ ¦ Pressing Mic [PTT] transmits the short delay. When using repeaters times, this delay portion of the DTSS The delay time is 350 during simplex operation. When using a transmit offset or a split frequency, you can select either 350 ms (default) 1 Press [MNU] to enter Menu mode. 2 Select Menu No. 12 (Code Squelch). VOL SQL CALL 3 Press [ s sssss] , then select Item No. 1 (CSQ Delay). VOL SQL CALL 1 2 4 Press [SET] to toggle 350 ms or 550 ms. 5 Press [MNU] again to exit Menu mode. 52 PAGE PAGE Unlike DTSS, Page allows call a single station or a group In addition, Page offers the added benefit of identifying When you are called with your Station station’s code appears on the display. If called with a Group code, the Group code appears. Note: Be aware that audible DTMF tones from other transceivers near you may be picked up by your MC-53DM or MC-...
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