Kenwood TS-590SG Operation Manual - Page 35

FM CTCSS OPERATION You may sometimes want to hear calls only from specific persons. When using FM mode, the Continuous Tone Coded Squelch System (CTCSS) allows you to ignore (not hear) unwanted calls from other persons who are using the same frequency. A CTCSS tone is sub-audible and is selectable from among the 42 tone frequencies. Select the same CTCSS tone as the other stations in your group. You will not hear calls from stations other than those using the same CTCSS tone. Note: CTCSS does not cause your conversation to be private. It only relieves you from listening to unwanted conversations. 1 Press [A/B (A=B)] to select VFO A or VFO B. • " " or " " appears to show which VFO is selected. 2 Select the 29 MHz band or the 51-54 MHz band using [28 (9)] or [50 (0)]. 3 Select the desired frequency with the Tuning control or MULTI/CH control. 4 Press [FM/AM (FM-N)] to select FM mode. 5 Turn the SQL control to adjust the squelch. 6 Press [AGC/T (SEL)] until " " appears. 7 While " " is visible, press and hold [AGC/T (SEL)]. • The current CTCSS frequency appears (default is 88.5 Hz). 8 Turn the MULTI/CH control to select the appropriate CTCSS frequency. • The selectable CTCSS frequencies are listed in the table below. 9 Press and hold [AGC/T (SEL)] or press [CLR] to complete the setting. ENHANCED COMMUNICATIONS 6 No. Freq. (Hz) No. Freq. (Hz) No. Freq. (Hz) No. Freq. (Hz) 00 67.0 11 97.4 22 141.3 33 206.5 01 69.3 12 100.0 23 146.2 34 210.7 02 71.9 13 103.5 24 151.4 35 218.1 03 74.4 14 107.2 25 156.7 36 225.7 04 77.0 15 110.9 26 162.2 37 229.1 05 79.7 16 114.8 27 167.9 38 233.6 06 82.5 17 118.8 28 173.8 39 241.8 07 85.4 18 123.0 29 179.9 40 250.3 08 88.5 19 127.3 30 186.2 41 254.1 09 91.5 20 131.8 31 192.8 -- -10 94.8 21 136.5 32 203.5 -- -- You will hear calls only when the selected tone is received. To answer the call, press and hold Mic [PTT], then speak into the microphone. Skip steps 7 and 8 if you have already programmed the appropriate CTCSS frequency. Note: ◆ When using split-frequency operation, select FM mode on both VFOs to use CTCSS. ◆ You can select a CTCSS frequency independent of a tone frequency. ◆ You cannot use the CTCSS function with the Tone function. CTCSS FREQUENCY ID SCAN This function scans through all CTCSS frequencies to identify the incoming CTCSS frequency on a received signal. You may find this useful when you cannot recall the CTCSS frequency that the other persons in your group are using. 1 While the CTCSS function is ON, press and hold [AGC/T (SEL)]. • The current CTCSS frequency appears. 2 Press [SCAN (SG.SEL)] to activate the CTCSS frequency ID scan. • While the transceiver is receiving a signal, " " blinks and every CTCSS frequency is scanned. When the CTCSS frequency is identified, the transceiver stops scanning and the identified frequency is displayed. • Press [SCAN (SG.SEL)] or [CLR] to stop scanning while the CTCSS frequency ID scan is active. • Press [SCAN (SG.SEL)] again to resume scanning. Note: Received signals are audible while scanning is in progress. 27