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SSTV dedicated PC is used with following spec. CPU: Intel Celeron 2.8GHz Memory: 768MB OS: MS Windows XP Professional, SP2 Sound Card for SSTV: Creative Lab's SB PCI SSTV Software: MMSSTV version 1.11G An interface circuitry is used and contained in the PC case. An amplified loud speaker is used to monitor both sending/receiving sounds. |
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The SSTV interface circuitry is accommodated in a removable storage case to be adapted into a 5.25" bay in PC. DC +12V from PC power supply is fed into the interface circuitry and an external loud speaker with power amplifier built in. |
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Inside of the interface circuitry. A magnetic relay for PTT and an audio transformer for modulation signal are used to secure the isolation between transceiver and PC. VOX circuitry is included for V/UHF transceiver which does not have VOX function in it. |
SSTV Interface Circuitry Drawn by OrCAD by JA4OPP as his courtesy. Hand drawn circuitry
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