Click here to make tpub.com your Home Page

Page Title: GLIDESLOPE (GS) MODE OPERATION
Back | Up | Next

Click here for thousands of PDF manuals

Google


Web
www.tpub.com

Home


   
Information Categories
.... Administration
Advancement
Aerographer
Automotive
Aviation
Construction
Diving
Draftsman
Engineering
Electronics
Food and Cooking
Logistics
Math
Medical
Music
Nuclear Fundamentals
Photography
Religion
   
   

 

TM 11-6625-2975.12
1-13. TEST SET OPERATION. (CONT)
Test set can be returned to preset condition using STD key the same as described for VOR mode.
GLIDESLOPE (GS) MODE OPERATION
When a standard glideslope (GS) rf carrier frequency is selected (see table 2-11), test set
automatically switches to GS mode preset condition. The rf output signal from test set simulates a
glideslope ground station signal with the following parameters:
I
SIGNAL
CHARACTERISTIC
OUTPUT PARAMETER
Glideslope rf carrier
Selected standard glideslope ground station frequency.
frequency
Rf carrier modulation
90 Hz/150 Hz AM composite audio signal.
I
Amplitude (o/o) modulation
40.0 percent per tone, on beam center.
DDM
0.000.
I
U/L (150 Hz) or D/R (90 Hz)
U/L (150 Hz).
status indicator
Operation in glideslope mode is the same as in Iocalizer mode except DDM is selectable in standard
preset steps of 0.000, 0.045, 0.091, 0.175, and 0.400, or in 0.001 increments to
0.800 through keyboard entry. DDM can be slewed in either direction in 0.002 increments. Percent
modulation is variable from 10.0 to 80.0 percent. The 1020 Hz audio signal cannot be added to the
glideslope signal.
MARKER BEACON (MB) MODE OPERATION
When the standard marker beacon rf carrier frequency (75.000 MHz) is selected, test set auto-
matically switches to MB mode preset condition. The rf output signal from test set simulates a
marker beacon ground station signal with the following parameters:
SIGNAL
CHARACTERISTIC
OUTPUT PARAMETER
Marker beacon rf carrier
75.000 MHz.
frequency
Rf carrier modulation signal
400 Hz AM audio signal.
Amplitude (%) modulation
95.0 percent.
1-13

Privacy Statement - Press Release - Copyright Information. - Contact Us

Integrated Publishing, Inc. - A (SDVOSB) Service Disabled Veteran Owned Small Business