3.1 The Web-based User Interface

After having connected the radiometer to a power supply and set the radiometers IP address, you can access the radiometer's user interface. To do this, start your favorite web browser program (Internet Explorer, Mozilla Firefox, Opera or what else program you prefer). At the address field, where you normally enter the URL of a web page you want to see, type in the IP address of the sat-nms radiometer you want to control.

The radiometer shows a web page consisting of a navigation bar at the left side of the browser window and the actual readings of the radiometer in the main part of the window. The readings automatically refresh once a second.

The navigation bar at the left contains eight buttons which build the radiometer's main menu:

• Reading --- This button switches back to the radiometers main page you already see when you connect to the radiometer. This page displays the actual readings of the radiometer.
• Settings --- By clicking to this button you switch to the 'Settings' page where you can view and change the common operational settings of the radiometer like frequency or bandwidth.
• Presets --- By clicking to this button you switch to the 'Presets' page. The radiometer is capable to store up to 20 presets of operational parameters.
• Calibration --- The calibration constants used by the radiometer are managed with this page. Also the tip-curve and cold-load calibration procedures are started here.
• Test --- The test page gives some information about the hardware interfaces between the radiometer controller and the front end electronics. This page is intended to be used for testing and installation tasks only.
• Setup --- This button switches to the 'Setup' page which lets you inspect or change less common parameters which usually are set only once to adapt the radiometer to it's working environment.
• Info --- After a mouse click to this button, the radiometer shows a table with information like the serial number of the device or the revision ID and compilation date of the software.
• Help --- Clicking to this button shows the on-line version of this user manual