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

Message Action
A
Acquisition Failed
C Circuit
Aborted
Denied (Reason)
Mismatch Detected
Preempted
Receive Buffer
Overflow
Set up Queued
(Reason)
Set up Rejected
(Reason)
Table D-4. Messages, 5-kHz DAMA
Terminal is not receiving OW. Check azimuth, power out, and reposition
antenna.
Check previous status messages. If logged out, log in over-the-air. Other
messages include circuit not available (especially DASA) and the reason.
Attempt to re-establish or establish a different type of service.
Circuit service request is denied for the stated reason. If condition is
correctable, take appropriate action or try again later.
An incoming service is established but a mismatch is detected between the
service and the current mode settings. Check setting of PT/CT mode and
type of attached data device.
The channel controller preempted the circuit. Wait for it to resume before
transmitting.
Or
Contact was temporarily lost with the controller; wait for it to resume.
Check data device for incomplete message or errors in message. If needed,
request source to retransmit message.
Service is queued for the reason supplied.
Local—terminal called is logged in but time-slot is unavailable.
MHOP—terminal called is not logged in with controller. If it is in another
footprint, wait. If it is supposed to be in the current footprint, teardown and
try again later.
Service request is denied for the stated reason. Try again later unless one
of the following reasons is displayed.
Data Rate—Requested a DASA service at higher than 2400 bps—no 25-kHz
DASA channel available.
Not Assignable—The LQ from terminal or the destination terminal is poor.
Check LQ in network state menu. If LQ is low, check antenna or raise
power.
Prec. Violation—The precedence entered is not allowed. Check network
state menu for assigned values. Ensure previous messages do not state
logged out. If previous message stated logged out, log in over-the-air and
re-attempt service set up at lower precedence.
Service Restrict—Request for a 2400 bps circuit denied due to network
traffic. Reduce data rate or wait until LIO no longer displayed in network
state.
Terminated (Reason) An existing service is terminated for the stated reason. Try again later.
COMMAND
Rejected Check parameters and network; try again.
Rejected Port is busy
(Check Current
Mode)
Request is rejected because of an existing active service. Ensure terminal is
idle before setting up a service.
D-9