Supervisory Control And Data Acquisition (SCADA)

Supervisory Control And Data Acquisition (SCADA)

Frequencies	450 MHz,950 MHz,413 MHz
Frequency Range	413 MHz - 950 MHz
Mode	FM
Modulation	FSK
ACF	—
Emission Designator	—
Bandwidth	12 kHz
Location
Short Description	Supervisory Control And Data Acquisition (SCADA) is a control system architecture that is used in industrial applications for computerized automated systems. Wireless telemetry is used on RTU's to send data to control units for operators to utilize.
I/Q Raw Recording	Download file
Audio Sample

Supervisory Control And Data Acquisition (SCADA) is a control system architecture that is used in industrial applications for computerized automated systems. Wireless telemetry is used on RTU's to send data to control units for operators to utilize. The SCADA concept was developed as a universal means of remote access to a variety of local control modules, which could be from different manufacturers allowing access through standard automation protocols. In practice, large SCADA systems have grown to become very similar to distributed control systems in function, but using multiple means of interfacing with the plant. They can control large-scale processes that can include multiple sites, and work over large distances.

---

There are also many proprietary standards that can be used for acquisition/distribution, such as Motorola's MOSCAD telemetry, as well as short AFSKAudio Frequency-Shift Keying bursts. Water systems also utilize their own standards, as well. Electricity and gas can also be an important part too.

Additional Links

• Wikipedia SCADA
• Wikipedia Remote Terminal Unit (RTU)

Additional Images

SCADA Schematic Overview SCADA Captured at 413MHz in Finland Motorola's MOSCAD SCADA telemetry, one of Motorola's proprietary standards for Data/resource acquisition/distribution. An odd example of water and electricity distribution/data acquisition from Pocahontas, Arkansas. (from FCC License KKT528)

Transparent modems/examples

Some Acquisition units use round-robin techinques for "poll and response" manners, similar to what the AFSKAudio Frequency-Shift Keying bursts do. In addition, some V. series modems are also specified as SCADA variants. This includes the VHFVery High Frequency (30-300 MHz) and UHFUltra High Frequency (300-3000 MHz) v.22 variants. These exist in the similar to the phone line cousins, transmitting data around themselves to acquire gas, water or sewage data.

NOTE: Audio does not follow the actual waterfall image(s). Audio was recorded separately.