NASA SX 35 DSC - Manual (Page 49)

SX 35 DSC 47
REFERENCE
Maintenance
The SX 35 DSC VHF transceiver is produced with proven processes and
current solid state technology. With reasonable care, your SX 35 DSC will
have a long useful life.
The following precautions will prevent damage to the transceiver.
• Never press the PTT button unless an antenna or proper dummy load
is connected to the antenna jack.
• Do not operate the transceiver if the power source is not within the
specified range of 11 to 16 Vdc.
• Replace the antenna and/or coaxial cable if damaged in any way or
severely weathered.
• Avoid continuous direct sunlight on the LCD.
• Avoid overextending the microphone cable.
• Do not use solvents or harsh chemicals to clean the microphone, case-
work or LCD display.
Special Functions
Simulator Mode
Provides simulated GPS data for demonstration of realistic displays. Trans-
mitter and DSC functions are totally disabled.
• Press and hold the
MENU
key while turning power On.
Clear Memory Channels
Clears the channel bank for the Memory Scan function.
• Press and hold the
MEM
key while turning power On.
New Microphone
Initializes the keypad when a new microphone is installed.
• Press and hold the
1
key on the microphone while turning power
On.
Printer Operation
Initializes the Tx port for 4800 baud PC/printer interface.
• Press and hold the 16 key while turning power On.