FAQ
Q: Why is it that I sometimes receive the transmissions from STO radio totally garbled?
A: The reason for this is most likely that your HF radio is set in "AM" mode. The setting should always be "USB".
Q: Do I have to actually tune my HF radio in order to be able to receive your SELCAL transmissions?
A: The on board SELCAL decoder is connected to the receiver of the HF equipment. That means you need to:
A: The reason for this is most likely that your HF radio is set in "AM" mode. The setting should always be "USB".
Q: Do I have to actually tune my HF radio in order to be able to receive your SELCAL transmissions?
A: The on board SELCAL decoder is connected to the receiver of the HF equipment. That means you need to:
- have the HF turned on
- be in USB mode
- have the frequency dials set on a suitable frequency (determined by your location and the time of day) however, you don't have to tune the transmitter (by keying the microphone) until you actually need to call us.
Q: Why is it that you send me to another frequency when I read you perfectly OK on the first frequency?
A: The reason is simply to optimise the use our equipment depending upon the workload. We try to avoid blocking the monitored frequencies with phone patches in case other flights want to call in. Please remember to return to one of our monitored frequencies to resume SELCAL guard after completion of comms on the alternate frequency unless otherwise instructed.