Hi,
I'm building an am transmitter according to the following schematic. However, my circuit could not transmit any signal for more than 1 meter. I originally used two of 2N2222 transistors instead of the BC109C but even when I switched out the 2N2222 transistors with the BC109C ones, the transmitting range didn't improve at all. I suspect that the transmitting power is too low but don't know how to make it higher.
I'm a newbie for RF circuits. If anyone knows how to improve the transmitting range of the circuit, please let me know. I would appreciate any of your ideas.
**broken link removed**
**broken link removed**
Thanks!
I'm building an am transmitter according to the following schematic. However, my circuit could not transmit any signal for more than 1 meter. I originally used two of 2N2222 transistors instead of the BC109C but even when I switched out the 2N2222 transistors with the BC109C ones, the transmitting range didn't improve at all. I suspect that the transmitting power is too low but don't know how to make it higher.
I'm a newbie for RF circuits. If anyone knows how to improve the transmitting range of the circuit, please let me know. I would appreciate any of your ideas.
**broken link removed**
**broken link removed**
Thanks!