I’ve recently done a lot of small but interesting projects. I should probably break each out into its own small article, but I’m lazy, so you get to see a mishmash.
Radio related projects
January 31, 2012
Lots of Little Radio Projects
January 23, 2012
LC Meter Update and Source
I finally cleaned up the source code from my rendition of the LC Meter. Here s the source. Here is a modified freq counter library which works with my Arduino Mega2560. The original frequency counter library is here. If you have a mega1280, the library may not work without similar modifications that I made for the 2560. The AVR_MEGA1280 is lumped in with the other arduino flavors in the original library. I don’t have a mega1280 to test with so I didn’t make changes to it.
January 15, 2012
The Hunt for a Good Compromise Antenna
I’ve been tinkering with my homebrew slinky antenna and my G5RV lite which I picked up and Ham Radio Outlet. I’ve decided to abandon the slinky dipole. It will easily tune to everything from 80 meters to 6 meters, but there is always a lot of noise compared to the G5RV. Due to the fact that there are no trees on our lot and the fact that I don’t want questions from the neighbors, the highest I’ll be able to get an antenna is about 25 feet, the height of the house.
What shall I do for an antenna?
January 2, 2012
An Improved Antenna Tuner
In the continuing saga of my antenna tuner, I think I’ve come to a place where the tuner is close to as good as it gets with my limited knowledge.
Recent improvements on my antenna tuner
January 1, 2012
Antennas and a Homebrew T-match
In my last post, I mentioned that I was having much better luck with a slinky dipole then a G5RV. It turns out that I was misinterpreting the data. I can match the slinky on 4 HF bands without external tuning, not all of them. I can match the G5RV on 2 bands without external tuning. This of course led me to trying to find an antenna tuner. It turns out that they are expensive if you want one with good range.
A homebrew antenna tuner