Rough Science . Transmitter and Receiver Challenge

Series 1: Mediterranean

Series 3: New Zealand

Series 4: Death Valley

The Challenge: Make a Transmitter and Receiver

Page: 1 2 3 4 5 6 7 8 9 10

What message are we going to send?

Now that we have a simple spark gap transmitter and a simple radio we can send signals from one to the other. We chose Morse code to send our message.

Here is the Morse code alphabet.

A
B
C
D
E
F
G
H
I
J

* -
- * * *
- * - *
- * *
*
* * - *
- - *
* * * *
* *
* - - -

K
L
M
N
O
P
Q
R
S
T

- * -
* - * *
- -
- *
- - -
* - - *
- - * -
* - *
* * *
-

U
V
W
X
Y
Z

Period
Comma
Question

* * -
* * * -
* - -
- * * -
- * - -
- - * *

* - * - * -
- - * * - -
* * - - * *

1
2
3
4
5
6
7
8
9
0

* - - - -
* * - - -
* * * - -
* * * * -
* * * * *
- * * * *
- - * * *
- - - * *
- - - - *
- - - - -

Did it work?

Major funding for Rough Science was provided by the National Science Foundation. Corporate funding was provided by Subaru.