Power failure leaves 911 silent; 'Silent frequencies' warn of attack; Lock your radio room's door; Hams and medicos exercise together; Alaskan radio array gets reprieve.

The federal government is reviewing the operation of the national Triple Zero operator to ensure that arrangements take advantage of new technologies and provide improved services. [ + ]

Simoco's Xd DMR Tier III has been chosen for the Royal Adelaide Show, 5-14 September, which attracts around half a million visitors each year. [ + ]

The federal government has signed a multimillion-dollar contract with Boeing Defence Australia to improve the military's HF communications capability (BDA). [ + ]

Tait Communications has implemented a trial P25 system for a 48,000-strong police force in Minas Gerais, Brazil, for the 2014 FIFA World Cup. [ + ]

APCOA wants your input; Huawei wins rail contracts; Radio for Red Bull races; Vote on Russian tower’s fate; DARPA seeks jam-resistant comms.

Inmarsat's first Inmarsat-5 Global Xpress (GX) satellite has begun commercial service on orbit, with the US government becoming the first customer within the satellite's Indian Ocean coverage area. [ + ]

Motorola Solutions has completed the rollout of a P25 digital simulcast trunked radio system in Albany, Western Australia, as part of its commitment to the WA Police. [ + ]

ARCIA will hold its third annual Brisbane industry dinner and seminar day on 31 July, complete with TETRA and P25 demonstrations. [ + ]

The new Asia-Pacific headquarters of Exelis, a leading US defence and aerospace company, has been officially opened in Melbourne by the Victorian Minister for Manufacturing, David Hodgett. [ + ]

Australian satellite company NewSat has been short-listed as a finalist for Satellite Provider of the Year in the ACOMMS 2014, the communications industry's premier awards for excellence. [ + ]

Police test cellular-to-LMR; Canadian nuclear power stations go TETRA; Sheriff's pleas for new radio system; Public safety comms market report.

A Chinese electronics manufacturer and online retailer has been fined US$35m for allegedly marketing 285 models of signal-jamming devices to US consumers. [ + ]

The first Comms Connect Sydney conference and exhibition was a tremendous success, with exhibitors, speakers and attendees all making the most of the event. [ + ]

Hytera Mobilfunk has been awarded the contract for a TETRA radio system for secure radio communications in the metro system of the city of Santiago de Chile. [ + ]