IFR COM-120B Service Manual

STEP
PROCEDURE
20. Set COM-120B
power
to
OFF and disconnect
test equipment.
PERFORM THE FOLLOWING
ONLY
WHEN REQUIRED,
21. Set
Modulation Analyzer
|or
300
Hz
High-Pass
Filter
and 3
kHz Low-Pass Filter.
22.
Press
SETUP
MEMORY Key
(21).
23.
Select
"1.
Calibration"
f rom
Setup Screen.
24.
Press ENTER Key to access
Password
Field.
Press
SHIFT,
F, M,
Y,
S,
V,
C,
D
and SHIFT
Data Entry Keys
(5).
Press
ENTER Key.
25. Select
"9.
RF
GENERATOR
-
AM MODULATION"
to access
RF GENERATOR
-
AM
MODULATION CALIBRATION
Screen.
26.
Press ENTER Key.
Edit Data
Field
using
DATA SCROLL
Keys
(17) tor
Modulation
Analyzer
reading
closest
to
70o/o Modulation.
27.
Press ENTER Key and
wait
until
Field
displays
CALIBRATED.
28.
Press RETURN
Soft
Function
Key
F6
to
return
to
Calibration Screen.
Go
to
Step 3.
1-24
STEP
PROCEDURE
20. Set COM-120B power to OFF and disconnect test equipment.
PERFORM THE FOLLOWING ONLY WHEN REQUIRED.
21. Set Modulation Analyzer for 300 Hz High-Pass Filter and 3 kHz Low-Pass Filter.
22. Press SETUP MEMORY Key (21).
23. Select u1. Calibration" from Setup Screen.
24. Press ENTER Key to access Password Field. Press SHIFT, F, M, Y, S, V, C, D and SHIFT
Data Entry Keys (5). Press ENTER Key.
25. Select "9. RF GENERATOR - AM MODULATION" to access RF GENERATOR - AM
MODULATION CALIBRATION Screen.
26. Press ENTER Key. Edit Data Field using DATA SCROLL Keys (17) for Modulation Analyzer
reading closest to 70% Modulation.
27. Press ENTER Key and wait until Field displays CALIBRATED.
28. Press RETURN Soft Function Key F6 to return to Calibration Screen. Go to Step 3.
1-24
Scans by ArtekMedia © 2008

IFR COM-120B Specifications

General

Brand	IFR
Model	COM-120B
Category	Measuring Instruments
Language	English