GOODRICH Stormscope Series II Installation Manual page 52

99999, and is reset using the clear button. It should be noted that noise can cause triggers but not result in
a strike symbol.
The noise monitor is displayed by selecting that option from the Service Menu (i.e., press SELECT with
Noise Monitor high-lighted).
The buttons perform the following operations in this mode:
•
EXIT - returns to the Service Menu (figure 4-1).
•
CLR - clears all received data from the screen.
•
TEST - Selects the Test Strikes display.
•
Softkey (C) is not used.
Thunderstorm activity within 200 nmi will register on the noise monitor and may
affect the test strike display by causing the test strike to fall outside the box.
Press CLR to erase the screen and then check for electrical noise indications.
PASS There should normally be no noise indications inside the solid ring on the display. (A small
number of triggers and/or random noise points inside the displayed ring is acceptable.)
FAIL Significant activity (triggers and/or strike clusters) or persistent indications of electrical
noise inside the solid ring are unacceptable. (Trouble-shooting electrical noise is discussed
in paragraph 4.6.)
If the noise monitor test is satisfactory, press the TEST button to switch to the Test Strike display, see
figure 4-8.
The Test Strikes display is used by installers to visually verify the operation of the internal strike test
signal. No range indication is displayed. The rectangular shaped box is displayed on the screen to enclose
the area in which the test strikes should appear. Test strikes are generated and sent to the antenna at a
rate of one pulse per second (1 Hz rate). The resulting test strike received by the system is displayed on the
screen, and is indicated by a single strike symbol (+). The last strike is erased before the next strike is
generated.
WX-950
Installation Manual
NOTE
Figure 4-8. Test Strikes
4-7
Rev. C