(e) DIM - Brightness control for panel indicators.
(f) SIG INDICATOR - Indicates level of transmit or receive signals.
(g) Display window - indicates the frequency the RT is on during SC operation, and
information concerning RT operation.
(h) VOL/WHSP - VOLUME/WHISPER, adjusts the volume of the received signal.
Whisper allows you to whisper into the microphone and be received at normal volume.
(i) DATA - Allows for selection of data rate for interface with data equipment.
(j) RXMT Connector - used to connect two RTs for retransmission.
(k) ANT Connector - Used to connect manpack or vehicular antenna.
(l) FILL Connector - used to connect the fill device when loading data into the RT.
(m) AUDIO Connector - used to connect handset in in manpack, connects to Mounting
Adapter AM-7239 in vehicular radio sets.
(n) KEYPAD used to enter SC data into the RT during SC operations.
o 1 - 0, used to enter single digits when entering SC frequencies into holding memory
during SC operations.
o FREQ - FREQUENCY, used to prepare the RT to accept frequency input.
o SEND/OFST - NOT used during SC operation.
o TIME, NOT used during SC operation.
o BATT/CALL, Used to set or call up battery life condition.
o STO/ENT - STOW ENTER, used to enter data into permanent memory from holding
o H.LD/0 - HOLD/LOAD/0, Used only as 0 in SC operation.
o CLR - CLEAR, used to clear data from memory. Used in entering frequency data
during SC operation.
o L.E. and L have no function during SC operation.