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If the radio is in anti-jam mode but there is no valid data/waveform or time stored in the current
radio for the current preset channel, the AJ option changes to AJ NO FILL (see figure 23-12). The
AM/FM and AJ MENU options are not displayed when a NO FILL condition exists on the current
preset channel. In this condition, an ``A'' is displayed in the scratchpad and a Have Quick net number
may be entered.
Figure 23-11. COMM Sublevel - Presets 1 to 20 (Anti-Jam)
A1-F18EA-NFM-000
VII-23-18 ORIGINAL
23.3.4 AJ MENU From Have Quick COMM Sublevel. Touching the AJ MENU touch option/display
while on the COMM sublevel with a Have Quick anti-jam mode selects the AJ Have Quick menu
sublevel initialized with the HQ TIME option selected and border highlighted (see figure 23-13). This
sublevel is used to transmit and receive Have Quick time. The scratchpad information is the same as
scratchpad information on the Have Quick COMM sublevel.
The HQ TIME option is used to transmit or receive Have Quick time while the radio is operating on
a Have Quick net. With the HQ TIME touch option/display border highlighted the option enables the
use of the RCV and XMIT options. Touching the RCV touch option/display border highlights the RCV
option until time is received or until 60 seconds have elapsed. Touching the XMIT touch option/
display border highlights the XMIT option for 2 seconds and time is transmitted. The XMIT option
is not displayed if ADF is enabled (for selected radio). Data entry is not available on this sublevel and
the ENT option is Xed out.
Selecting the RTN option returns the format to the AJ COMM sublevel.
23.4 SINCGARS SYSTEM
The radio can be operated with Single Channel Ground and Airborne Radio System (SINCGARS)
which provides jam resistant line-of-sight (LOS) voice communications in the VHF band employing
frequency hopping. Established communication nets require a TOD that is coordinated and used by all
net users. The system also contains encoded locksets and hopsets that define the set of frequencies that
will be hopped on and will not be hopped on. The system can store multiple nets correlating to hopsets
and locksets. The principle functions available for SINCGARS control are:
a. SINCGARS mode (AJ) selection,
b. time reception and transmission,
c. late net entry,
Figure 23-12. AJ MENU From Have Quick COMM Sublevel
A1-F18EA-NFM-000
VII-23-19 ORIGINAL
d. electronic remote fill (ERF),
e. cue operation,
f. coldstart.
23.4.1 AJ MENU From SINCGARS COMM Sublevel. Touching the AJ MENU touch option/display
while on the COMM sublevel with a SINCGARS anti-jam mode selects the AJ SINCGARS menu
sublevel (see figure 23-14) and may initialize with the MSTR option or LATE ENTRY option selected,
or no options selected. This sublevel is used to select MSTR (master operation), to select LATE
ENTRY (late entry operation), to enter time, and to transmit and receive hopsets and locksets.
The MSTR option is used to select master control of the net. Automatic time synchronization is
achieved by each of the net radios every time a transmission is received from the master. If the MSTR
option is border highlighted, master control of the net is enabled. If MSTR is not border highlighted,
master control of the net is disabled. The MSTR option toggles between control and no control.
The TIME option is used to enter time. Each user can enter the SINCGARS time. The time can be
used by the master to synchronize the rest of the net or to get on the net using late entry. Touching the
TIME option/display border highlights this option, a D, H, and M is displayed in the scratchpad, and
time data entry is enabled. The time may be entered in D (day), H (hour) and M (month) format by
touching the desired number on the keypad options, verifying the new time in the scratchpad and
touching ENT. Trailing zeros need not be entered. If invalid data is entered, ERROR is displayed in
the scratchpad.
The LATE ENTRY is used to gain late entry into the net. Touching the LATE ENTRY
option/display border highlights the option and enables late entry into the SINCGARS net. This
option remains border highlighted until time synchronization into the net is achieved.
Touching the ERF (Electronic Remote Fill) option selects the AJ SINCGARS ERF sublevel (see
figure 23-15). ERF allows the system to be filled electronically over the air by another net user who has
the required net data (hopsets/locksets). The net user can either provide or receive the net data. The
Figure 23-13. AJ Have Quick Menu Sublevel
A1-F18EA-NFM-000
VII-23-20 ORIGINAL
desired hopset/lockset can be selected one at a time for either transmission or reception. The process
is repeated until all desired sets are transmitted/received. This sublevel initializes with no options
　
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