TTY Antenna Monitor and Control

RCP8 can display most important real-time antenna parameters on the local TTY screen and can request antenna motion through a simple command interface. You can use the local control and monitoring capability during the initial installation and testing of RCP8 or for manual antenna control

To access the local antenna monitor, in the Main menu, type monitor angles.

The MONITOR command may be abbreviated to its unique first letter, m. The term angles is the default value of an optional keyword.

An initial heading is printed, followed by repeated lines of numerical text. For example:

RCP> monitor angles
AZ–Pos AzTach Az–Vel AzDrv EL–Pos ElTach El–Vel ElDrv Time
–––––– –––––– –––––– ––––– –––––– –––––– –––––– ––––– ––––
141.21  34.81   8.37  32.7  12.01   0.00   0.00   0.0 3.42

The displayed values are:

AZ-Pos / EL-Pos: The Azimuth (AZ) position is unsigned and displayed in a 0 to 360° range. The Elevation (EL) position is signed and operates from -180 ... +180°.
AZTach / ELTach: The AZ and EL tachometer levels represent 12-bit, A/D converter samples scaled to a range from -100 to ...100.
AZ-Vel / EL-Vel: The AZ and EL velocity are computed as the end-product of the tachometer samples with a calibration slope for each axis. If there is no hardware tachometer then the position is differenced to obtain a virtual tachometer. Note that for the virtual tach, the internal dynamic antenna model is used for interpolation.
AZDrv / ELDrv: The AZ and ELEL motor drive represents 12-bit, D/A converter values scaled to a range from -100 ... +100.
Time: The seconds counter increments from 0 ... 10 with 0.01 second resolution. These values are included so the elapsed time, between displayed lines, can be easily measured. It is useful when manually calculating the antenna dynamic parameters.