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2014-01-17
ID-O-Matic III
17
If one of the outputs is selected as fan control, its normal function is not available and that output
will now act as a fan control. The fan control will become active as soon as COR is detected,
and will remain on until transmission stops AND the fan timer (see the Timers screen) expires.
The active state (grounded or open) depends on the polarity setting for the output signal used.
Note that any of these outputs is driven by a 2N7000 MOSFET. The absolute maximum output
ratings are 60V and 200 mA, but the actual limit of what the transistors can drive without heat
sinking is substantially lower. If your fan draws more than a very modest amount of current, an
external relay would be a good idea.
Baud Rates
If you are not using a GPS receiver for timing, you won’t need to worry about this menu. It is
used only to set the serial baud rate for an optional GPS receiver used to set the real time clock.
The default speed is 9600 BPS; if your GPS receiver requires a different setting you can enter it
here.
Summary of Contents for ID-O-Matic III
Page 1: ...www hamgadgets com 2014 01 17 HamGadgets ID O Matic III Assembly Setup and Use Guide ...
Page 26: ...www hamgadgets com 2014 01 17 ID O Matic III 26 PCB Layout Schematic Rev C ...
Page 27: ...www hamgadgets com 2014 01 17 ID O Matic III 27 PCB Layout Schematic Rev D ...
Page 32: ...www hamgadgets com 2014 01 17 ID O Matic III 32 ...
