LP-Rotor continuously displays the correct azimuth position of your antenna using the red needle indicator. Sample update rate can be adjusted in the setup winfow from 100 ms to 2 seconds. When first installed, the rate defaults to 1 second. Any user changes are saved and recalled with future program launches.
There are four ways in which you can change antenna direction.
1. Click the < or > arrows in the "Preset" slider bar to preset a new heading. The black needle will move to the new heading, the "Keyboard Entry" window will display the new heading, and the new heading will appear in the upper right corner of the gauge. In fact, changing the heading using any of the entry modes will cause the new heading to appear in all entry fields. Clicking inside the bar next to the arrows will cause the needle to move faster. Click on the "Go" button to move to the new heading indicated by the black needle, or use the keyboard shortcut Alt-G. Hitting "Enter" on the keyboard will also start rotation as long as the LP-Rotor window is the active program window. Clicking on the "Stop" button, or using the shortcut Alt-S will abort the direction change. Hitting the escape key will also stop rotation early. If you change your mind in mid-rotation, a new heading can be set and activated without stopping the current movement. These start and stop methods will also work with all the below methods of preset position.
2. Instead of using the "Preset" siding bar, you can click directly on the bearing where you want to go, and the black needle will "snap" to that bearing. Once "grabbed", you can drag the needle to any bearing that you want, or just click on a new bearing. Once again, the new heading will appear in all entry fields.
3. You can directly enter a heading into the "Keyboard Entry" box. Just click in the box, or hit the "Tab" button, and then type a heading number. Again, the black needle will snap to the new heading, and the new heading will appear in all entry fields. To clear a previous entry using only the keyboard, you will need to backspace or delete to erase the current heading, and then type a new heading.
4. As mentioned in the Introduction, you can also control the program through it's DDE interface. Specific instructions are given below for use with TRX-Manager.
Whichever method you use also affects the settings of the other methods sothey all properly display current presets.
To setup TRX-Manager for use with LP-Rotor, you must first select the correct rotator in the Setup menu from within TRX-Manager. Click on the Rotator 1 Tab (see below), and select LProtor as the rotator. DO NOT select Hy-Gain or Yaesu as the rotator. Do not click the "Reverse Mounted" box, or enter an Offset....LP-Rotor will control these functions. You will need to enter the path to LP-Rotor, so that the TRX-Manager DDE feature will be able to find it. If you used the default installation, the correct path will be: C:\Program Files\LP-Rotor\.
From TRX-Manager, when you set a new heading in the rotator interface, whether directly or transferred from the log, or loaded from a Web-Cluster entry, the TRX-Manager rotator panel will display the new heading (see below). If you click on the GO button (arrow graphic), a DDE command will be sent to LP-Rotor, and LP-Rotor will go to the new setting. The black needle in LP-Rotor will snap to the new heading to indicate that the DDE command was received, and the new heading will also appear in the other entry fields. Clicking on the "Stop" button within TRX-Manager's rotator panel will send a stop command to LP-Rotor and abort the move. Rotation can also be aborted from LP-Rotor, of course using the Stop button or Space bar.
Whichever method you use to set a new heading, remember the rules that the physical rotator box uses to go to a new heading. The box will take the shortest route to the heading you've set, taking into account the overlap region. Again, any current movement can be over-ridden by setting and activating a new heading, or clicking on "Stop". Commands can freely be intermixed from the LP-Rotor panel and TRX-Manager panel, and pointing methods can be freely mixed within LP-Rotor. In other words, you can initiate a command from TRX-Manager, and override it from LP-Rotor, or vice versa.
To exit LP-Rotor, select "File" from the menu, and "Exit". Clicking on the "X" in the Control Box (upper right window controls) will usually close the program, but "File" "Exit" always works. LP-Rotor saves all settings as you enter them, and will restart with the same settings. The window position is saved when exiting.