Kenwood TS-870S User Manual - Page 51

TRANSMITTING VOX (VOICE-OPERATED TRANSMIT) VOX eliminates the necessity of manually switching to the transmit mode each time that you want to transmit. The transceiver automatically switches to transmit when the VOX circuitry senses that you have begun speaking into the microphone. When using VOX, get into the habit of pausing between thoughts to let the transceiver drop back to receive briefly. You will then hear if anybody wants to interrupt, plus you will have a short period to gather your thoughts before speaking again. Your listener will appreciate your consideration as well as respect your more articulate conversation. Press [VOX] to toggle the VOX function ON or OFF. • "VOX" lights when the function is ON. VOX AGC AUTO USB ■ Microphone Input Level Adjustment To enjoy the VOX mode, take time to set the gain of the VOX circuit to the correct level. 1 Select a voice mode, switch ON the VOX function, and begin speaking into your microphone using your normal level of voice. 2 Access Menu No. 28 (VOX.GAIN), then select different settings (default is 4) until the transceiver reliably switches to transmit each time you speak. • The best setting will allow the transceiver to switch between receive and transmit; however, background noises near your operating position should not falsely switch the transceiver. • This Menu item is configurable even if the VOX function is OFF or while you are transmitting. Note: This transceiver does not have an ANTI-VOX control. DSP is able to automatically lower the input sensitivity for received audio that is output from the speaker. 7 OPERATING AIDS ■ Delay Time Adjustment 1 Select a voice mode, switch ON the VOX function, and begin speaking into your microphone using your normal level of voice. 2 Adjust the DELAY control so that the transceiver changes back to receive a brief time after you stop talking. • The DELAY control has a range from 150 ~ 2700 ms. Each step equals 10.6 ms. Note: Setting the delay time by computer overrides any setting of the DELAY control. The control then has no effect. To restore functionality to the DELAY control, turn the control. The newly selected setting becomes effective. TRANSMIT INHIBIT Transmit Inhibit prevents the transceiver from being placed in the transmit mode. No signals can be transmitted if this function is ON. When the transceiver is inhibited from transmitting, the graduations on the PWR meter go out as a visual reminder. • TX Inhibit OFF: Transmissions are possible. • TX Inhibit ON: Transmissions are not possible. Switch the function ON or OFF via Menu No. 27 (TX INH). The default is OFF. XIT (TRANSMIT INCREMENTAL TUNING) Similar to RIT, XIT provides the ability to change your transmit frequency by ±9.99 kHz in steps of 10 Hz without changing your receive frequency. If the Fine Tuning ([FINE]) function is ON, the step size is 1 Hz. 1 Press [XIT]. • "XIT" and the XIT frequency display appear. AGC AUTO USB TONE XIT 2 Press [CLEAR] to reset, if required, the XIT offset to 0. 3 Turn the RIT/XIT control to change your transmit frequency. AGC AUTO TONE XIT USB 4 To cancel the XIT function, press [XIT]. Note: The frequency shift set by the RIT/XIT control is also used by the RIT function. Therefore, changing or clearing the XIT frequency also affects the RIT frequency. 45