Operation, Remote Operation
Transponder Commands
Rev. L0
ATC-5000NG ATC/DME Test Set Operation Manual
1-2-5
February 2020
Subject to Export Control. See Cover Page for details.
Page 111
5.9.17.1.2.E
TYPE
5.9.17.2
DOUBLE INTERROGATION
This set of commands allows the user to setup double interrogations. In double interrogations, both
interrogations are outputted on the top antenna port.
5.9.17.2.1
FREQUENCY
Command Syntax:
{:ATC |:ATC5000NG}{:XPDR}{:TXBLOCK:}<message number>{:TYPE}
SP<numeric>[,<numeric1>]CR
Description:
This command sets the type of the message selected. The optional argument <numeric1>
defines the ATCRBS Interrogation type.
Message Number:
1 to 1000
Numeric:
1 to 2 (decimal ASCII)
If the scenario type selected was XPDR (Transponder), the valid values are 1 and 2.
Value
Type
1
Mode S Interrogation
2
ATCRBS Interrogation
Default:
Mode S Message
Numeric1:
1 to 6 (decimal ASCII)
Valid only if the type of message defined in <Numeric> is ATCRBS Interrogation.
Value
Type
1
Mode A
2
Mode C
3
Mode A Only All Call
4
Mode C Only All Call
5
Mode A/Mode S All Call
6
Mode C/Mode S All Call
Default:
Mode A
Example:
:ATC:XPDR:TXBLOCK:4:TYPE 2,2\r
Query:
:ATC:XPDR:TXBLOCK:4:TYPE?\r
Return:
2,2
Command Syntax:
{:ATC |:ATC5000NG}{:XPDR}{:DBL:}<interrogation number>{:FREQ
|:FREQUENCY}SP<numeric>CR
Description:
This command sets the transmission frequency of the selected double interrogation.
<interrogation number> defines the double interrogation number.
Numeric:
952 to 1223 MHz (Decimal ASCII)
Default:
1030 MHz
Example:
:ATC:XPDR:DBL:1:FREQ 1031\r
Query:
:ATC:XPDR:DBL:1:FREQ?\r
Return:
1031.0
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