Figure 5-16.—A net stoppage caused by NCS not receiving a stop code.

Figure 5-16.—A net stoppage caused by NCS not receiving a stop code. Figure 5-17 shows several PUs not responding to call-ups. Some of the causes for this condition could be the following: NCS having an incorrect PU address entered in the DTS, low transmitter power out from NCS, an excessively noisy frequency, or weak PU receivers. Figure 5-17.—Several PUs not responding to NCS call-ups. The LMS-11 also has several off-line modes that allow you to save data onto a disk and analyze the data in detail. The off-line modes include a frame-by- frame display to analyze each frame of a transmission. This allows you to analyze the data of a particular PU and shows the status of each bit position. Remember that when you are doing a frame-by-frame analysis, the data has not been decrypted. More information on all modes of the LMS-11 can be found the System Operation and Maintenance Instructions, Organization Level, Link Monitor System AN/TSQ-162(V)1, EE-190-AB-OMI-010/TSQ- 162(V)1. 5-19