COMMON TASKSYaesu FT-8900R Operating Manual Expanded Edition (courtesy of W5JCK) Page 18 of 77TransmitTo transmit, simply depress the PTT (Push To Talk) switch on the microphone.The FT−8900R will transmit only on the Main band. During transmission, the icon willappear at the upper right of the Main frequency field on the display.Changing the Transmitter Power LevelYou can select from among a total of four transmit power levels on your FT−8900R.To change the power level, press the key to select one of the four power settings. Thesepower levels will be stored in memory registers at the time of memory storage.LOW: 5 watts HF/VHF/UHFMID2: 10 watts HF/VHF/UHFMID1: 20 watts HF/VHF/UHFHIGH: 50 watts HF/VHF, 35 watts UHFDuring transmission, the Bar Graph will deflect in the display, according to the power outputselected.You may change the power level on the Main band using the MH−48A6J microphone’skey.Activate the Lock FeatureIn order to prevent accidental frequency change, the panel switches and DIAL knobs may belocked out.To activate the Lock feature:1. Press the SET key momentarily to enter the Set mode.2. Rotate the DIAL knob to select Menu #21 LOCK.3. Press the DIAL knob momentarily, then rotate the DIAL knob to change thesetting to ON.4. Press the SET key momentarily to save the new setting and exit to normaloperation.0.To unlock the panel switches and DIAL knobs, select OFF in step 3 above.