Трёхкристальный кварцевый фильтр. Кварцы на
1.8432 MHz , 3.579548 MHz, 4.000 MHz , 4.032 MHz , 4.9134304 MHz , 8.000 MHz , 9.600 MHz , 12.000 MHz .
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R term-входное-выходное сопротивление фильтра. 6dB bandwidth = 800 Hz.- полоса пропускания по уровню 6 дБ.
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Filter : IF = Y = 1.8432 MHz , 6dB bandwidth = 800 Hz, C = 33 pF , R
term = 1500 ( matches NE602 without transformer). CW Filter : IF = Y = 3.579548 MHz ( colorburst xtal ), 3dB bandwidth = 403Hz , C = 200 pF, R term = 150. CW Filter : IF = Y = 4.000 MHz , 6dB bandwidth = 400 Hz , C = 300 pF , R term = 200. CW Filter : IF = Y = 4.032 MHz , 6dB bandwidth = 650 Hz , C = 120 pF , R term = 300. CW Filter : IF = Y = 4.9134304 MHz , 6dB bandwidth = 600 Hz , C = 130 pF , R term = 240. CW Filter : IF = Y = 9.600 MHz , 6dB bandwidth = 600 Hz , C = 120 pF , R term = 227. CW Filter : IF = Y = 12.000 MHz , 6dB bandwidth = 500 Hz , C = 150 pF , R term = 227. SSB Filter : IF = Y = 8.000 MHz , 6dB bandwidth = 2.2 KHz , C = 100 pF , R term = 300. SSB Filter : IF = Y = 12.000 MHz , 6dB bandwidth = 2.1 KHz , C = 160 pF , R term = 128. |
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НА
ГЛАВНУЮ. / ТЕХПОРТАЛ /
QRP