Vertex Standard FTM-10R manual Ctcss Operation

FTM-10R OPERATING MANUAL

CTCSS TONE FREQUENCY (Hz)

67.0 79.7 94.8 110.9 131.8 156.7 171.3 186.2 203.5 229.1

69.3 82.5 97.4 114.8 136.5 159.8 173.8 189.9 206.5 233.6

71.9 85.4 100.0 118.8 141.3 162.2 177.3 192.8 210.7 241.8

74.4 88.5 103.5 123.0 146.2 165.5 179.9 196.6 218.1 250.3

77.0 91.5 107.2 127.3 151.4 167.9 183.5 199.5 225.7 254.1

CTCSS OPERATION

Many repeater systems require that a very-low-frequency audio tone be superimposed on your FM carrier in order to activate the repeater. This helps prevent false activation of the repeater by radar or spurious signals from other transmitters. This tone system, called “CTCSS” (Continuous Tone Coded Squelch System), is included in your FTM-10R, and is very easy to activate.

CTCSS setup involves setting the Tone Mode and then setting of the Tone Frequency. These actions are set up using Menu Items “F40 SQL TYPE” and “F39 SQL TSQF”.

1.	Press and hold the [VOL/SEL] key for one second to activate the Menu Mode.
2.	Rotate the DIAL knob to select Menu Item “F40 SQL TYPE”.
3.	Press the		key to enable selection of this Menu Item.
4.	Rotate the DIAL knob so that “TONE SQL” appears on the
	display. This means that the Tone Squelch system is active,
	which mutes your FTM-10R’s receiver until it receives a
	call from another radio sending out a matching CTCSS tone.
	This can help keep your radio quiet until a specific call is
	received, which may be helpful while operating in congested areas.
	Note: 1) You may notice a “REV TONE” indication on the display while you rotate the
		DIAL knob in this step. This means that the Reverse Tone Squelch system is
		active, which mutes your FTM-10R’s receiver (instead of opening the squelch)
		when it receives a call from the radio sending a matched CTCSS tone. The
		“T SQ” icon will blink on the display when the Reverse Tone Squelch system
		is activated.
	Note: 2) You may notice a “DCS” indication on the display while you rotate the DIAL
		knob still more. We’ll discuss the Digital Code Squelch system shortly.
5.	When you have made your selection of the CTCSS tone mode, press the			key mo-
	mentarily, then rotate the DIAL knob three clicks counter-clockwise to select Menu
	Item “F39 SQL TSQF”. This Menu selection allows setting
	of the CTCSS tone frequency to be used.
6.	Press the		key to enable adjustment of the CTCSS fre-
	quency.

7.Rotate the DIAL knob until the display indicates the Tone Frequency you need to use.

8.Press the [VOL/SEL] key to save the new setting and exit to normal operation.

Note: Your repeater may or may not re-transmit a CTCSS tone. Some systems just use CTCSS to control access to the repeater, but don’t pass it along when transmitting. If the S- Meter deflects, but the FTM-10Ris not passing audio, repeat steps “1” through “4” above, but rotate the DIAL knob

so that “TONE” appears. This will allow you to hear all traffic on the channel being received.

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