Ham Shack Cam
Welcome to Matt's (N6EAJ) web page.
Over to the right side is the Ham shack cam. It is updated every ten
I am headed to the Dayton Hamvention in 2010. Here are some
pictures from the 2008 Hamvention.
I had a DIY (do-it-yourself) audio web page on the SDSU (San Diego
State University) server for many years.
It was a collection of some of my audio related projects ranging from a
class A 20W/channel audio amplifier to a 15" cylindrical sub woofer.
It was interesting to hear from people from all over the world that were
working on audio projects (the same fun I have with Ham radio).
I haven't done any audio projects for awhile, but you can still check
DIY audio archived site.
Solid State 600W HF amplifier project:
I tend to be on 75/80 meters in the winter evenings using either phone
(voice) or PSK31 (3.58MHz). The nice thing about PSK is you only need
about 25W to
cover the world.... or at least half the world depending on conditions.
Many people use amplifiers for voice on 75 meters so
unless you are running some power, it is easy to get lost in the noise.
That leads me to my on-going (never ending?) project; a 600W HF
amplifier. It is based on an application note from Motorola. The main
is part of a kit, but it is up to the builder to provide the power
supply, output filtering (to keep the harmonics low and the
amplifier legal), protection, and everything else. It sounded like a
good way to learn RF (the best learning is hands on).
You can see details on the amplifier
This picture was taken aboard the Queen Mary in the W6RO shack in 2008.