Calytrix Technologies has released a new version 4.0 of its Comm Net Radio Simulator (CNR-Sim) for training of military, homeland security, first responder and other radio users. CNR-Sim is part of Calytrix’s CNR family of simulation and training related communication products.

Calytrix’s CNR-Sim is software for either Windows or Linux that simulates a multichannel radio. Training with CNR-Sim provides PC users the comm functionality of a real radio. However, voice communications through the simulated radio are processed over a computer network and not broadcast over the air, thus limiting the radio traffic to the confines of the training environment. CNR-Sim is compliant with IEEE standards for simulated radio communications (specifically, DIS and HLA network protocols). Calytrix’s CNR family of products also includes CNR-Log to record and play back simulated radio traffic and CNR-Touch for touchscreen control of multiple independent simulated radios.

CNR-Sim in Base and Pro versions supports an unlimited number of simulated channels (frequencies), Voice Operated Keying (VOX) capability, and user control of signal clarity and noise. In addition, Calytrix offers a free version of CNR-Sim that supports just two simulated radio channels.