TESTS AND ADJUSTMENTS
3-33
3.4
Frequency configuration strap settings
This section defines the strap settings on the for the standard ICAO Annex 10 ILS frequen-
cies.
The strap settings for each frequency and equipment type are shown in Table 0-1 and Table
0-2. The straps are numbered from A0 to A5 and N0 to N9. A0 is the bottom strap in two
groups of straps. (when the board is held as inserted in the cabinet).
An “X” character in the table means the strap must be inserted. A blank means the strap must
be removed.
0.0.1
OS1221B strap settings for 2-frequency GP
The course transmitter frequency is set with straps in the J2 strap block. The configured
course frequency is the channel fre 7.5 kHz.
Ch. freq.
(MHz)
A0 A1 A2 A3 A4 A5 N0 N1 N2 N3 N4 N5 N6 N7 N8 N9
329.15
X
X
X
X
X
X
X
X
329.3
X
X
X
X
X
X
X
X
X
329.45
X
X
X
X
X
X
X
X
329.6
X
X
X
X
X
X
X
329.75
X
X
X
X
X
X
X
X
X
329.9
X
X
X
X
X
X
X
330.05
X
X
X
X
X
X
X
330.2
X
X
X
X
330.35
X
X
X
X
X
X
X
X
X
X
X
330.5
X
X
X
X
X
X
X
X
X
X
330.65
X
X
X
X
X
X
X
X
X
330.8
X
X
X
X
X
X
X
X
X
330.95
X
X
X
X
X
X
X
X
X
X
331.1
X
X
X
X
X
X
X
X
331.25
X
X
X
X
X
X
X
X
X
X
331.4
X
X
X
X
X
X
X
X
331.55
X
X
X
X
X
X
X
X
X
331.7
X
X
X
X
X
X
X
X
X
331.85
X
X
X
X
X
X
X
X
332
X
X
X
X
X
X
X
332.15
X
X
X
X
X
X
X
X
X
X
X
332.3
X
X
X
X
X
X
X
X
X
332.45
X
X
X
X
X
X
X
X
X
332.6
X
X
X
X
X
X
X
332.75
X
X
X
X
X
X
X
X
X
332.9
X
X
X
X
X
X
X
X
333.05
X
X
X
X
X
X
X
333.2
X
X
X
X
X
X
X
X
333.35
X
X
X
X
X
X
X
X
X
333.5
X
X
X
X
X
X
X
333.65
X
X
X
X
X
X
X
X
333.8
X
X
X
X
X
X
