6: Option Cards
Specifications
Quantity 4
Connector Female BNC
Output impedance
25 W +/- 10%
Amplitude into 50
W
0-3 Vp-p, adjustable via internally-accessible potentiometer (3 Vp-p is the factory
setting)
Amplitude into
600 W
0-10 Vp-p, adjustable via internally-accessible potentiometer
Modulation Ratio 2:1 through 5:1, adjustable via internally-accessible potentiometer (3:1 default)
Time Codes
IRIG-A 133, IRIG-B 120, IRIG-B 123,
IRIG-E 111, IRIG-E 112, IRIG-E 121, IRIG-E 122,
IRIG-G 141, IRIG-G 142, IRIG-H 111, IRIG-H 112,
IRIG-H 121, IRIG-H 122, 2137, XR3,
NASA 36
(All codes in 24 hour format)
Time References Standard, UTC, GPS, or Local
Occupies 1 Bay
CPU-Aware No
Note: The IRIG time code standard calls for UTC as the time reference. The Multicode
option card can also output Standard, GPS, and Local time for non-standard appli-
cations of IRIG, such as displaying the local time on an LED time display unit.
The factory settings are:
• Amplitude into 600 W: 6V
• Modulation Ratio: 3:1
• Time Code: IRIG-B 120
• Time Reference: UTC
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