User manual YAESU VX-246

[. . . ] Hold the radio 3 ~ 5 cm from your mouth, and speak in a normal voice into the microphone. Note: While you are transmitting, the LED indicator will glow red continuously. Do not transmit on a BUSY channel (where the LED indicator is blinking green); wait until the channel is clear (no blinking green LED). To receive weak stations better, disable the squelch momentarily by pressing and holding in the MONI button on the side of the radio for one second. [. . . ] CTCSS Operation “CTCSS” is a selective calling system which uses a continuous, very-low-frequency tone that is filtered out so as not to be heard. If many stations are using the same channel frequency, CTCSS will keep your radio’s receiver squelched until a CTCSS tone is received matching the CTCSS tone you have selected for your radio. If CTCSS is turned off, any signal received can open your radio’s squelch. Rotate the CH knob to select a channel on which you wish change the CTCSS configuration. Press the [C] key, then enter the two-digit CTCSS Tone number from the keypad. DCS and ARTS* Operation “DCS” is similar in use to CTCSS, except DCS uses digital codes for more reliable operation. €ARTS” is a transponder feature, available when DCS is engaged, which will alert two ARTS-equipped radios when an “Out of Range” condition exists. The stations can then move to a better location to re-establish communications. Rotate the CH knob to select a channel on which you wish change the DCS configuration. If you wish to enable ARTS operation, press the [ ] key. If you wish to disable ARTS operation (DCS operation only), press the [#] key. Rotate the CH knob to select a channel for operation. to transmit , press the PTT (Push-To-Talk) button. Hold the radio 3 ~ 5 cm from your mouth, and speak in a normal voice into the microphone. Note: While you are transmitting, the LED indicator will glow red continuously. Do not transmit on a BUSY channel (where the LED indicator is blinking green); wait until the channel is clear (no blinking green LED). To receive weak stations better, disable the squelch momentarily by pressing and holding in the MONI button on the side of the radio for one second. With the squelch disabled, the LED indicator will blink green and channel noise and weak stations will be heard. To quiet the radio again, press and hold in the MONI button for one second. When your communication session is finished, switch off the radio by rotating the VOL control to the fully counter-clockwise position (into the click-stop). Note: The VX-246 can be programmed for DTMF Paging operation (this requires the optional FVP-25 Encryption/DTMF Pager Unit), and also for CTCSS and DCS operation. Each of these modes provides different levels of selective calling. [. . . ] Turn the radio off by rotating the VOL control fully counterclockwise (into the click-stop). Press and hold in the [A] key; while holding it in, turn the radio on. Press the key the function of which you wish to change, then program the new setting according to the procedures described below. When re-programming is finished, turn the radio off by rotating the VOL control fully counter-clockwise (into the click-stop). [. . . ]