Thanks for the replies! All the information has been very useful.
VE1BLL, yep that's the antenna. Why would you replace the antenna with a 50 Ohm load? I'm not quite sure what info you'd get from doing that. I could try it and post up some pictures of the VSWR with a 50 ohm resistor and the...
Hi All,
I have a system which is essentially just a one-way 2.4GHz digitally encoded radio. The transmitter is quite small (PCB 1x2cm) and the receiver is a lot larger. On the receiver is an ordinary +5dBi rubber ducky antenna. The transmitter uses an antenova Impexa (A6150) chipscale...
You can make a 3 dimensional object from an arc. If you create an arc, select it then click "Curves->Trace from Curve..." you will get a dialog box which asks for two parameters, thickness and width. Width is in the same plane as the curve and thickness is extruded perpendicular to the surface...
Hey Everyone,
I am designing a small GPS tracking device and I had a couple of questions regarding selection of a GPS antenna. I've done a fair bit of research into this but I really don't know all that much about RF which is why I'm here asking for assistance.
First things first, the device...
Hey,
Thanks for the feedback. Yeah that first chip mentioned by IRstuff, the MAX1836 looked good but I couldn't find it for sale anywhere. With a bit of extra searching I found the TPS54331 which seems to do everything I wanted and is readily available for me to purchase.
Thanks again for...
Hey,
I have been trying to get my head around how to tackle the problem of powering a microcontroller that runs on 3.3V from a 12V supply. The power supply is a simple battery and will be deployed 'in the field' for long periods of time (1 or 2 years) so it is essential that the 12V to 3.3V...
