Locally or remotely controlled–what does that mean?
A simplex VoIP node may be locally controlled by an operator who is present at the node. Such a node may also be remotely controlled at some other point, with the operator issuing commands via a wireline or radio control link. If a radio control link is used, it must utilize an auxiliary station, and such stations are restricted in frequency to 222.15 MHz and above (with the exception of the CW, SSB and amateur satellite portions of the 70-cm band). It’s this remotely controlled aspect that allows VoIP simplex nodes–as long as they are on the right bands. Let’s consider seven options: • A control operator is stationed and active at the VoIP node on any frequency. This is a locally controlled station, not at all unlike a typical operation on FM simplex. This is legal. • A control operator communicates with and controls a simplex VoIP node with a handheld, transmitting and listening to the node on 223.52 MHz. This is wireless remote control. Such control must be executed by an auxiliary
