Yapalong uses ISM band (industrial, scientific, and medical radio band).
ISM band is from 902M to 928M Hz in North America.
31 channels are obtained from ISM band in North America
(14 channels are for EU model.)
1 Yapalong group occupies 1 channel.
1 channel only allows 1 Yapalong group.
1 Yapalong group allows maximum 8 Talkers and unlimited Listeners
(EU model allows maximum 4 Talkers.)
A group is set to handle 8 users ( 4 for EU).
The performance is not affected by the actual number of users as long as it is below 8 (4 for EU).
Yapalong Auto-Scan function allows the first unit turned on in a group scans for the cleanest channel in ISM band.
Yapalong group is mesh network or point-to-point network.
All units are equal.
It has neither master unit nor base station.
There will be a leading unit during Binding.
It is no longer a leading unit after Binding.
Multiple Yapalong groups can be mixed within one physical location without interference.
Yapalong groups can be mixed with other walkie-talkie groups without interference.
If some unit(s) move out of range, the group communication is not affected.
When the unit comes back, its communication with the group resumes automatically.
2 groups can be hardwired by Interface Cable. Check the link for details.
With proper binding and 2C (2-channel) button, the radio(s) can talk to either group.
ONLY Yapalong5000 radio is implemented with 2C function.