Checking General Trigger Setup with Setup Mt Command

Test Goal

Verify that the TTY setups for the General Trigger Setup section are properly configured for the customer application.

Background

RVP10 can output up to 12 triggers. These can be delayed by different amounts, and have different pulse widths. For example, trigger 0 may go to fire the transmitter, while a slightly delayed trigger 1 may be used for triggering an oscilloscope. The timing can be different for each transmitter pulse width. The final timing adjustments are configured in Burst Pulse Alignment.

In the following table, enter the purpose of each trigger, the nominal start time, and pulse width. Start times are relative to range zero (middle of the burst pulse). We recommend a nominal pulse width of 3 μsec.

Magnetron radars using an analog COHO system often have a trigger generator circuit, which produces a trigger for the COHO latching, and also for the transmitter pulse. This circuit should be bypassed in an upgrade.

# Purpose Start Time Pulse Width
0 ________ ________ ________ ____ μsec ____ μsec
1 ________ ________ ________ ____ μsec ____ μsec
2 ________ ________ ________ ____ μsec ____ μsec
3 ________ ________ ________ ____μsec ____ μsec
4 ________ ________ ________ ____ μsec ____ μsec
5 ________ ________ ________ ____ μsec ____ μsec
6 ________ ________ ________ ____μsec ____ μsec
7 ________ ________ ________ ____μsec ____μsec
8 ________ ________ ________ ____μsec ____ μsec
9 ________ ________ ________ ____μsec ____ μsec

Test Procedure

  1. Enter the TTY setups through dspx.
  2. Issue the Mt command to display the internal status.
  3. Set all the values, as required, for your operation.
    ThePRF and pulse width set here are the current values and the values used at power up.

Checklist

General Trigger Setup Checklist
Task Checked OK/Not OK Remarks
Test procedure completed successfully.

Parameters set

See Mt — Triggers and timing.
Test Passed
For Customer Date:
For Vaisala Date: