FTA-250L O perATing MAnuAL2222advanCed operatIonNoise CancellationTo cancel background noise when transmitting andreceiving.Enables/disables the Noise-canceling function of thetransmitter and receiver independently.1. [M E N U] à “S E T U P” à “C O M M S E T U P” à“NOISE CANCEL” .2. S e l e c t “ T X M O D E ” b ypressing the [◄] or [►]key, and then press the[ENT] key.3. Press the [◄] or [►] key to select “ON” or “OFF”,and then press the [ENT] key.4. Select “RX MODE” by pressing the [◄] or [►] key,and then press the [ENT] key.5. Select the noise level from “LV 1” through “MAX”or “OFF” by pressing the [◄] or [►] key, and thenpress the [ENT] key.6. Press the PTT switch to return to normal opera-tion.TOT FeatureThe TOT (time-out timer) shuts off the transceiver af-ter continuous transmission exceeds the programmedtime. This feature prevents unintended transmissionby mistake and reduces battery consumption.1. [M E N U ] à “ S E T U P” à “ C O M M S E T U P” à“TX TOT” .2. Select the desired TOTtime by pressing the [◄]or [►] key, and then pressthe [ENT] key.The setting changes in the following order.1à à 2à à 3à à 4à à 5 (MIN)Tip: The default setting: 5 MIN3. Press the PTT switch to return to normal opera-tion.