Uniden MC1020 English Owners Manual - Page 15
Transmitting, Dimming the LCD Display Backlight and the TX Indicator
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Transmitting When the power is turned on, the transmitter is set for 25 Watts (except for USA Channels 13 and 67). The HI indicator will appear on the LCD Panel, indicating 25 Watt output power. In order to comply with FCC Regulations contained in 47 CFR 80.215 (g) (3), USA Channels 13 and 67 transmit at 1 Watt regardless of the H/L selector setting. However, 25 Watt output for emergency use is available by pressing H/L while pressing the Press-To-Talk switch. When the H/L switch is released, the radio returns to the 1 Watt position. To switch to the LO (1 Watt) position, Press H/L. The LO indicator will appear on the LCD Panel, indicating 1 Watt output power. The LO position should always be used for in-port or short range communications. Press H/L to switch to the HI (25 Watt) position. The HI indicator will appear on the LCD Panel, indicating 25 Watt output power. To activate the transmitter, press the Press-To-Talk switch on the microphone. The LED indicator will light, indicating a signal is being transmitted. Release the switch to receive. When transmitting, hold the microphone approximately two inches from your mouth and speak clearly in a normal voice. The microphone provided with your radio is a 500 ohm dynamic type. Note: You cannot transmit on Weather Channels 0 - 9 or Channel 15. The Channel Number in the LCD Panel will blink to indicate these channels are "receive-only". Dimming the LCD Display Backlight and the TX Indicator When the MC 1020 is turned on, the LCD Panel and LED will be brightest. Pressing the MEM and H/L buttons will change the brightness. The last setting will remain in memory. When you turn on the radio the next time, the display will be at this setting. Note that the LED is not turned Off by the DIM button. 12