This transceiver is also low power, but this time, it can generate signals in the 144 MHz band. In the case of this frequency, the crystals must be submultiples of it. For example: using a 24 MHz crystal, the sixth harmonic will fall at 144 MHz, and so on. What is done is always tune the tank circuit (coil and capacitor) to this frequency. The operating principle is similar to the previous circuit and allows a wide range of experiments, without the risk of burning or damaging the components. Contacts can be attempted with other amateur radio stations.
| Clique na imagem para ampliar |
