Viavi ATC-5000NG Operation Manual page 72

3.4.8.1 Multi-Receiver, ADS-B Target, Transmission Sequence
T1/T3: static target
squitters
0 to 375 ms
T1 (static targets):
Even Position Messages (DF17/DF18 Airborne or Surface, TISB and ADSR)
Velocity Messages (if enabled and airborne)
Identification Messages (if enabled)
maximum of 1388 squitters
T3 (static targets):
Odd Position Messages (DF17DF18 Airborne or Surface, TISB and ADSR)
Target State Messages (if enabled)
Velocity Messages (if enabled, airborne and rate is 0.5 s, T1 only if rate is 1.0 s)
Aircraft Status Emergency Messages (if enabled)
DF11 Messages (if enabled)
maximum of 1388 squitters
T2 and T4 (dynamic targets):
Each of the enabled messages' rates are set by the user. Messages are
transmitted in accordance to the settings.
maximum of 32 dynamic targets with all squitter types enabled
Rev. L0
February 2020
T1 T2
375 to
500 ms
ATC-5000NG ATC/DME Test Set Operation Manual
Subject to Export Control. See Cover Page for details.
T2/T4: dynamic target
T3
500 to 875 ms
1 sec
Operation, Menus and Screens
Multi-Receiver Menu
squitters
T4
875 to
1000 ms
1-2-3
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