Honeywell SPZ-8000 - EHSI Heading Comparison Monitoring; 45 Heading Miscompare Annunciator

SPZ--8000 Digital Integrated Flight Control System
A28--1146--055
REV 2
Electronic Flight Instrument System (EFIS)
4-60
EHSI HEADING COMPARISON MONITORING
On--side displayed heading is compared with cross--side heading. The
heading comparison annunciator is displayed when there is a 3
difference in heading, both compared data sources are valid, and the
same type of heading (MAG/TRU) is selected on both sides. The
heading comparison annunciator is also displayed if cross--side IRS
data is not available on the ASCB for comparison. The heading
miscompare annunciator is a boxed IRS that flashes for 10 seconds
and then goes on steady, as shown in Figure 4--45.
AD--58082@
SRP
Heading Miscompare Annunciator
Figure 4--45