Q: Is the transmitting frequency and receiving frequency continous?
A: Receiving frequency is continous.
Transmitting frequancy is restricted to amateur radio frequency.
Out-of-band emission is forbidden(need to spread spectrum)
Q: How many working modes?
Q: What kinds of digital Communication is available?
A: PSK/FSK/RTTY/JT65 etc.
Q: How to use antenna tuning unit?
A: Long press the ATU button to start the built-in ATU for forced tuning.