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Enhanced FM Synthesizer Instruction Manual
IM10-OS3AH
406-470 MHz - Theory of Operation
66
Synthesizer Base and Frequency Increments
The OS(R/T)-3H Synthesizer operates in frequency increments of 12.5kHz. The Base
Frequency for any given synthesizer model is the lowest frequency generated.
Model Number
Freq. Range
Base Freq.
Freq. Increment
Model Number
Freq. Range
Base Freq.
Freq. Increment
OST-3H418
406-430MHz
406MHz
12.5kHz
OST-3H460
450-470MHz
450MHz
12.5kHz
OSR-3H440
427.4-451.4MHz
427.4MHz
12.5kHz
12.5kHz Channelization
The operating frequency for Synthesizers having 12.5kHz channelization is determined as follows:
BCD switch settings from 0000 to 4999
:
Multiply the switch setting by 12.5kHz and add the result to the synthesizer base frequency.
Example: An OST-3H418 synthesizer has a base frequency of 406MHz. The selected channel number
is 1660. The
synthesizer
synthesizer
output frequency is: ((1660 x 21.5kHz) +406MHz) = 426.7500MHz
output frequency is: ((1660 x 21.5kHz) +406MHz) = 426.7500MHz
synthesizer
synthesizer
synthesizer
synthesizer
Содержание OSR-3H061
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