GMDSS Maintainer: Element 9

1. A A component in the RF amplifier stage has failed or the signal from a preceding stage is grounded.
2. B The Local Oscillator stage is no longer supplying a signal to the mixer stage at the correct frequency.
3. C The AF amplifier may be defective or the transmitter Push-To-Talk circuit may be activated.
4. D The mixer stage is no longer producing an output signal on the correct Intermediate Frequency (IF).

Tip: press A-D to answer