Procom EVS200 user manual Command FA1 Function, Off

VOR/ILS Analyzer EVS200

		Chapter 3: Operation
Command FA1
command	function
FA1 <Fast DDM measuring on>	Activating the Fast DDM measurement

The command FA1 switches on the fast DDM measurement. The measuring, used only for landing path measurement can only be activated through a controller. The output is performed as DDM value with RF level (see example) and can be processed accordingly with calculation programs e.g. like Excel etc. A capacaty of 34 measurements /s at a baud rate set to 19200 baud will be reached. This conforms to a time interval of 30 ms. The measurement values (DDM, RF level) can be read in and output as a text file corresponding to the terminal program.

To reach 34 meas/s the baud rate must be set to 19200 baud in the Setup of the

VOR/ILS Analyzer EVS200. It must be attended the acceptance of the data transfering rate by the terminal program.

￿The measurement can be stopped through the command FA0 (refer to Command

FA0).

Example:	command from the controller	response of the VOR/ILS Analyzer EVS200
input:	FA1 <CR>	0.2008	-48.2 <CR/LF>
	fa1 <CR>	0.2008	-48.2 <CR/LF>
	With the command FA1 the echo	Both values are separated through a tabulator
	mode is automatically switched		ASCII 9.
	OFF.

1/90Hz = 11.1msec.

N	N+1	N+2	N+3	N+4	N+5	N+6	N+7	N+8	N+9	N+10	DSP-Analysis
	DATA-	DDM, RF-Level	RS232-	DATA-	DDM, RF-Level	RS232-	DATA-	DDM, RF-Level	RS232-	DATA-
	Transfer	Calculation	Transfer	Transfer	Calculation	Transfer	Transfer	Calculation	Transfer	Transfer
			N			N+2			N+5		TXD-Signal
											fromEVS200

30 msec.

0796.1800.02 E-8 39