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

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

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Figure C-9. DAMA 25-kHz AC Call Menu C-23

q. Terminate 25-kHz AC DAMA calls on completion. The user should terminate a timed or indefinite call so the channel controller can reassign that channel to another terminal in the network. Perform the following procedures to terminate a call: (1) From a service state display indicating ACTIVE and time remaining, press CALL. (2) From SELECT REQUEST TYPE display, select TERMINATE CALL with the up/down arrow keys; press ENT. (3) The TERMINATE CALL request is sent to the channel controller. The channel controller tearsdown the service and the service state of the terminal returns to one of the service states (IDLE, PENDING, or QUEUED), depending on other ongoing requests. r. Send a 25-kHz AC DAMA out-of-service request to the channel controller instead of logging out as in 5-kHz DAMA. In these requests, the duration for being out of service, precedence, and reason code is transmitted. If another station attempts to call the terminal during the out-of-service period, the channel controller can report the reason code and time to be out of service to that user. Perform the following procedures to send an out-of-service request: (1) Press CALL key to bring up SELECT REQUEST TYPE display. (2) Select OUT OF SERVICE and press ENT. (3) Select precedence for out-of-service request and press ENT. (4) Enter two-digit numerical out-of-service code. (5) Enter duration for the out of service period; use 0000 if it is to be indefinite. Press ENT. (6) The out-of-service request is sent to the channel controller. Watch the display for acknowledgement from the channel controller. s. To return to service in 25-kHz AC DAMA operation, send a status report B RCCOW (menu item RETURN TO SERVICE) to the channel controller. This informs the channel controller that the operator has returned. When an operational radio is unmanned, it is not necessary to use this menu item when turning on after a power off. The RCCOW sent to the channel controller when connected notifies the channel controller of return to service. Perform the following procedure to return to service: (1) Press CALL key to bring up SELECT REQUEST TYPE display. (2) Select RETURN TO SERVICE and press ENT. (3) A Status report B RCCOW is sent to the channel controller. t. In 25-kHz UHF AC DAMA, an AN/PRC-117F terminal user can page up to three other terminals. Paging is available only in 25-kHz AC DAMA. Using organization network planners, determine the procedures on responding to pages. See Figure C-10. Perform the following procedure to page: (1) Press CALL key to bring up service request screen of SELECT REQUEST TYPE. (2) Select PAGE and press ENT. C-24

Figure C-9. DAMA 25-kHz AC Call Menu<br />

C-23

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