Enjoy the Reflector QSO using Smartphone or Tablet. Introducing Portable AMBE server for Reflector QSO The XRF reflector club began distributing a portable AMBE server that can make a reflector QSO that does not require a transceiver. It is common to access the reflector using D - Star/ C4FM/ DMR transceiver with access point unit called a hotspot, but if you use this portable AMBE Server, you can QSO just use a Smartphone /Tablet /PC . you do not need the tranceiver to access reflectors.