uhf tacsat /dama multi-service tactics, techniques ... - UHF-Satcom.com

(19) Select SAVE, the down arrow button to store in desired preset (a number
must be entered ).
(20) Press ESC until the OP screen is displayed and select OP.
(21) Recall the PRESET.
(22) After recalling the preset, the display shows a monetary alarm condition.
Radio initializes for a minute or so. Then the radio automatically accesses the satellite
and the display reads as—
PRESET # 1
SATCOM ANDVT V2.4V1
I I I I I I I I (power bars)
SIG
CH#1 FREQ RX
d. Upon completion of the circuit, depress the ESC of the up arrow button to the
FUNCTION menu.
3. Key Variable Zeroization
a. The radio has six fill positions. To zeroize all six key variables, pull and rotate
the KMGT switch to the extreme counter clockwise position. This is labeled ZALL. If
the radio set is in a mode that has the COMSEC hardware turned on, the display
immediately shows the ALARM message signifying a successful ZEROIZATION. The
preset operating modes are not affected by ZEROIZATION. If the radio is in a mode
with COMSEC hardware off, the display may not immediately display the ALARM
message after a ZALL. However, if a mode is entered that causes the COMSEC
hardware to turn on, the ALARM message l appears and a KG initialization is required.
b. The radio can be zeroized by two other means. Removing the standby battery
when the radio set is turned off zeroizes all key variables. Also, unauthorized attempts
to access the COMSEC compartment zeroizes the key variables.
c. To zeroize a specific key variable location, rotate the KMGT switch to the ZSEL.
Select (use the left or right arrow keys on the keypad) the key variable storage location
number (KG1 –to KG6) desired to zeroize.
d. Once the proper location for the key variable is entered and verified on the
display, press and release the STO/RCL button on the keypad. If a KG variable is
selected, the message ZSEL IN PROGRESS is displayed briefly. The message ZSEL
SUCCESSFUL is displayed when the operation is completed successfully. The ZSEL IN
PROGRESS display should be brief and may not be identifiable.
4. LST-5D DAMA 25-kHz AC Procedures (For MOD-3 and Below)
a. Under AC, 25-kHZ AC is 25-kHz DAMA. This terminal is used for satellite
communication in either voice or data mode. The channel width is 25-kHz.
b. DAMA is a channel access scheme in which access of a channel from
geographically distributed communications terminals is allocated based on demand.
c. AC is an operating mode that allows communications slots within the waveform
to be dynamically assigned to terminals requiring access to the slots.
E-5