Art Vandelay (Pujolsrules)
Post Number: 1
|Posted on Saturday, May 29, 2010 - 6:01 pm: || |
Before I start, I know about the legalities of transmitting on certain frequencies and what licenses you need, etc...
I want to use the transmitter in an outdoor setting for a receiver 50 feet away. I need to connect the ground pin to a good ground. Could this be achieved by sticking the ground wire in the dirt?
...or, is there another am circuit that would do the job?
I've done some googling, but am unsure.
Theresa Simmons (Theresa)
Post Number: 162
|Posted on Saturday, May 29, 2010 - 8:00 pm: || |
The scitoys circuit is designed to be easily put together
by school children, and still be low enough power to be legal.
If you need longer range, a good ground (not a wire stuck in
the dirt, but a copper pipe buried deep enough to always be
damp and long enough to have a low resistance contact with the
earth) will help, as will a long antenna (50 to 100 feet).
A cold water pipe is usually a good ground. Hot water pipes
are not buried, but cold water pipes are.
There are other, more complicated circuits that can also give
you longer range: