John W3MA wrote...

> About a year and a half ago, I bought a UT-41 GPS receiver to use with 
> a computer.  It has a USB outlet.  Can I chop the connector off, find 
> out what the four wire are.  Two are for voltage, the other two +d 
> and -d.  Can I connect these to a serial input?

The short (and possibly only) answer is no. USB peripherals can only 
communicate with a USB host controller. You could open up the GPS 
receiver and see if there was RS-232 data coming from the GPS engine 
ahead of the USB interface. GPS receivers are so cheap, I'm not sure I 
would rip one apart just to find out.

However doing a search for "UT-41 GPS hacking RS-232" (without the 
quotes) yielded a few sites that hinted that it could be done. Unless I 
knew for sure, I would just keep it as a working USB GPS receiver and 
get one with an RS-232 interface. However, if you blow it, you end up 
with a nice fridge magnet, so it wouldn't be a total loss!

73 es cul - Keith VE7GDH
--
"I may be lost, but I know exactly where I am!" 

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