Ramsey Electronics FX-440 Manual page 113

Synthesized fm & pacicet data uhf transceiver
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"N"
for
446.00 MHz
=
446000
12.5
=
35,680
DECISION PROCESS
RESULT
POSITION
Can we subtract 32, 768 from 35, 680?
YES
32K
35, 680 - 32, 768 = 2, 912
Can we subtract 16, 384 from 2, 912?
NO
16K
Can we subtract 8,192 from 2,912?
NO
BK
Can we subtract 4, 096 from 2, 912?
NO
4K
Can we subtract 2,048 from 2,912?
YES
2K
I
2,912 - 2,048 = 864
Can we subtract 1,024 from 864?
NO
1K
512
864 - 512 = 352
YES
256
352 - 256 = 96
Can we subtract 128 from 96?
NO
128
YES
64
96 - 64 = 32
32
32-32=0
Can we subtract 16 from O?
NO
16
Can we subtract 8 from 12?
NO
8
Can we subtract 4 from 4?
NO
4
Can we subtract 2 from O?
NO
2
Can we subtract 1 from O?
NO
1
Now, install Programming Diodes at all YES positions and we're done!
The practical result from the preceding exercise is that we install diodes
only in the YES positions on the matrix. Compare these results with the
diode programming illustrated for 446.0 MHz Simplex on the schematic
diagram. If you do not yet understand EXACTLY what we did in this
exercise and why, we suggest in the strongest possible terms that you
work at
getti~g
it
clear before doing any further work on your transceiver.
FX-440
Assm. 53

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