29
MANUAL P/N 900000111 REV K
4.3.5
Setting the IRIG Time Code format.
The NFS-220 has two separate time code generators included. One time code generator is fixed to
generate Have Quick II time code, as defined in ICD-GPS-060. The second time code generator
generates one of 4 IRIG time codes. The selected IRIG time code is generated in two variants- the
modulated time code ( J8) and the DC level shift version (DCLS) is output on J9-2.
The formal IRIG descriptions are shown in
Table 9 IRIG time Code Formats
. Detailed information on IRIG
time code formats may be found in IRIG 200-04, which may be downloaded from
https://wsmrc2vger.wsmr.army.mil/rcc/PUBS/pubs.htm
.
An extract from IRIG 200-04 is shown in
Figure 10
.
Selection
Modulated time code (J8)
DCLS Output (J9-2)
IRIG A
A135
A005
IRIG B (factory setting)
B125
B005
IRIG E
E115
E005
IRIG G
G145
G005
Table 9 IRIG time Code Formats
1.
Select the desired time code by using the pull-down box to highlight the time code.
2.
Click Submit
to enter the desired format.
Figure 10 Standard IRIG Formats
