Keysight Technologies N5171B EXG, Руководство пользователя

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124 Keysight EXG and MXG X-Series Signal Generators User’s Guide
Avionics VOR/ILS (Option 302)
Using COM/ID Softkeys
Using COM/ID Softkeys
The purpose of COM/ID commands are to set parameters related to
airport communication identification codes. (This code may also be referred to
as an, “airport call-sign”.)
During VOR and ILS testing, a COM/ID code can be transmitted as a three
letter Morse-code signal of 1.02000 kHz and is placed on the carrier; this
COM/ID code is used to identify the ground-based transmitting station.
Each COM/ID code (airport identification code) must correspond to one of the
International Air Transport Association (IATA) codes.
IATA owns, controls, and has a copyright to the complete list of airport
identification codes; STS is the airport identification code that refers to the
Sonoma County Airport in Santa Rosa, CA, USA.
Figure 5-5 COM/ID Softkeys
When testing a VOR [VHF Omnidirectional Ranging]
or ILS [Instrument Landing System],
the following COM/ID parameters can be set:
- Sets either Code or Tone
as the COM/ID type
- Sets a 3-character
airport ID Code enclosed
in single or double-quotes
- Sets the COM/ID tone
modulating frequency
- Turns off all
COM/ID signals
- Sets the COM/ID tone
amplitude modulation depth
(Range: 0 to 49.9%)
COM/ID Menu Parameters Default State
COM/ID Off/On Off
COM/ID Code/Type Code
COM/ID Code STS
Frequency 1.02000 kHz
Depth 10.0%