Abstract: A system and method for managing and controlling a transmit power of a transmitter of a RF transmission system are disclosed. When the transmitter operates from a constrained supply like a generator or battery, power draw may limit the output that can be supported by the transmitter or result in a shutdown of the entire system. The system includes a plurality of detection and measurement circuitries to detect parameters relative to the transmitter load quality, transmitter temperatures, input waveform quality, and input power source to ensure an output power of the transmitter to stay below an allowed input power. The system and method provide a reliable transmitter that is not subject to power overloads and shutdowns caused by a circuit malfunction.

Abstract: In a system for establishing connectivity in a HF ALE cellular network, stations are organized to sound each channel, synchronized to every other station in the network. All stations make identical sounding transmissions using a single address, synchronized such that the differential timing within the coverage area remains within the mobile radios' delay spread capability. Synchronized soundings allow the mobile radio to consistently connect to the best available channel. The stations may be synchronized via a central control function. Alternatively, the stations may perform soundings based on a predetermined schedule. Where the propagation time to the mobile radio is known, or determinable within some threshold, the stations may apply a delay to the sounding transmissions to ensure that the sounding transmissions from each of the stations reaches the mobile radio at the same time within some acceptable margin.

Abstract: In a system for establishing connectivity in a HF ALE cellular network, stations are organized to sound each channel, synchronized to every other station in the network. All stations make identical sounding transmissions using a single address, synchronized such that the differential timing within the coverage area remains within the mobile radios' delay spread capability. Synchronized soundings allow the mobile radio to consistently connect to the best available channel. The stations may be synchronized via a central control function. Alternatively, the stations may perform soundings based on a predetermined schedule. Where the propagation time to the mobile radio is known, or determinable within some threshold, the stations may apply a delay to the sounding transmissions to ensure that the sounding transmissions from each of the stations reaches the mobile radio at the same time within some acceptable margin.