IFR COM-120B Service Manual

STEP
PROCEDURE
PERFORM
THE FOLLOWING
ONLY
WHEN
REQUIRED.
45.
Set
Modulation
Analyzer
for
300
Hz High-Pass
Filter
and
3
kHz Low-Pass
Filter.
46. Press SETUP
MEMORY
Key
(21).
47.
Select
"1.
Calibration"
f rom
Setup
Screen.
48. 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.
49. Select
"7. RF
GENERATOR
- FM DEVIATION" to access
RF
GENERATOR
-
FM DEVIATION
CALIBRATION
Screen.
50.
With
cursor
on
'FM DEVIATION 50
kHz,"
press
ENTER
Key.
51.
Edit
Data
Field
using
DATA SCROLL
Keys
(17)
tor Modulation
Analyzer
reading
closest to
50
kHz Deviation.
52.
Press ENTER
Key and
wait
until
Field
displays
CALTBRATED.
53.
With cursor on
"FM
DEVIATION
15 kHz,"
press
ENTER
Key.
54.
Edit Data
Field using
DATA SCROLL
Keys
(17)
tor Modulation
Analyzer reading
closest to
15 kHz
Deviation.
55.
Press ENTER
Key and
wait until
Field displays CALIBRATED.
56.
With
cursor
on
'FM
DEVIATION
10 kHz,"
press
ENTER Key.
57.
Edit Data
Field
using
DATA
SCROLL
Keys
(17)
tor
Modulation Analyzer reading
closest to
10 kHz Deviation.
58.
Press ENTER
Key and
wait until
Field
displays
CALIBBATED.
59.
With
cursor
on
"FM DEVIATION
1 kHz,"
press
ENTER
Key.
60.
Edit Data
Field using
DATA SCROLL
Keys
(17)
tor Modulation
Analyzer reading
closest to
1 kHz Deviation.
61.
Press ENTER
Key
and
wait
until
Field
displays
CALIBRATED.
62.
Repeat steps 50
through 61 then
go
to Step 63.
63.
Press RETURN Soft
Function Key F6 to
return
to Calibration
Screen. Go to Step 3.
1-20
STEP PROCEDURE
PERFORM THE FOLLOWING ONLY WHEN REQUIRED.
45. Set Modulation Analyzer for 300 Hz High-Pass Filter and 3 kHz Low-Pass Filter.
46. Press SETUP MEMORY Key (21).
47. Select "1. Calibration" from Setup Screen.
48. 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.
49. Select "7. RF GENERATOR - FM DEVIATION" to access RF GENERATOR - FM DEVIATION
CALIBRATION Screen.
50. With cursor on "FM DEVIATION 50 kHz," press ENTER Key.
51. Edit Data Field using DATA SCROLL Keys (17) for Modulation Analyzer reading closest to
50 kHz Deviation.
52. Press ENTER Key and wait until Field displays CALIBRATED.
53. With cursor on "FM DEVIATION 15 kHz," press ENTER Key.
54. Edit Data Field using DATA SCROLL Keys (17) for Modulation Analyzer reading closest to
15 kHz Deviation.
55. Press ENTER Key and wait until Field displays CALIBRATED.
56. With cursor on "FM DEVIATION 10 kHz," press ENTER Key.
57. Edit Data Field using DATA SCROLL Keys (17) for Modulation Analyzer reading closest to
10 kHz Deviation.
58. Press ENTER Key and wait until Field displays CALIBRATED.
59. With cursor on "FM DEVIATION 1 kHz," press ENTER Key.
60. Edit Data Field using DATA SCROLL Keys (17) for Modulation Analyzer reading closest to
1 kHz Deviation.
61. Press ENTER Key and wait until Field displays CALIBRATED.
62. Repeat steps 50 through 61 then go to Step 63.
63. Press RETURN Soft Function Key F6 to return to Calibration Screen. Go to Step 3.
1-20
Scans by ArtekMedia © 2008

IFR COM-120B Specifications

General

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