Businesses such as taxi services and debris (recology) companies require a radio solution that allows their multiple vehicle radios to communicate to a dispatcher but not between each other. They find limited communication is beneficial in reducing the unnecessary conversations, which also reduces radio system load and ensures privacy. This can be achieved when a radio system is configured with a solution called split dispatch. Existing LTR system users are familiar with this feature, but split dispatch is also available in IDAS™ Conventional and IDAS MultiTrunk™ systems with the IA-10401 Split Dispatch Dongle.
When we want to extend the coverage of handheld two-way radios, the first option is typically to incorporate repeater as a solution. However, a repeater isn’t the full answer. A repeater, more times than not, will put out much more power and have a better antenna system than the portable radios that it is communicating with.
This presents a unbalanced system where the “talk out” of the repeater is much better than the “talk out” of the handhelds. In this case, the usable radius of the system is much less than what it could be.
First there is a hum. A whine. The chorus grows until the air is filled with the distinctive sound of flight. They come by the thousands. Acrobatics. Vintage. Warbirds. Homebuilts. Ultralights. Together they will turn sleepy Wittman Regional Airport in Oshkosh, Wisconsin, into the busiest airport in the world. It’s time again for EAA AirVenture Oshkosh.
This celebrated annual reunion of planes and pilots takes off July 20th and runs for seven days and nights packed with films, forums, workshops, displays, exhibits, concerts, and entertainment. Daily airshows will again amaze and inspire with noise, smoke and fire. Survivors of long-ago battles will lumber overhead. The world’s best acrobatic performers will confound the flight line with their skill and nerve. Modern aircraft of today will inspire wonder about the future.
Every year, technology professionals connect, educate and learn about the latest trends at Penton’s International Wireless Communications Expo (IWCE). This great event, originally founded in 1977 as the “National Business Radio Dealer Conference,” has become one of the largest industry shows for two-way radio manufacturers. Last year, the Expo welcomed over 350 vendors and more than 7,000 tech buyers. Approximately 75 countries outside the U.S. were represented at the convention, making IWCE truly a global affair.
Even after years of successful deployments, IDAS MultiTrunk remains a mystery for much of the LMR community. This lack of exposure is unfortunate because a properly deployed NXDN Type-D system is a reliable, cost effective, and bandwidth efficient straightforward solution. While P25 has all the hype these days, its implementation is cost prohibitive for many smaller public safety or commercial agencies. These entities typically require modest coverage area, yet more talk paths than a conventional system can offer, and the level of reliability that public safety demands. This mid-level solution is where MultiTrunk really shines.
Cruise vacations are a popular choice for families looking to avoid the high price of fuel for long-distance road trips. These types of vacations offer a complete package aboard a floating vacation paradise – ranging from family fun events for parents and kids, to individual activities so that each member of the family gets the most out the time spent on the boat.
To stay in contact during individual activities aboard a massive cruise vessel, many cruise-goers opt to purchase FRS radios (or similar devices) to communicate with each other. The unfortunate problem is that other families also buy their own communication devices; the result is an overcrowded channel lineup with very little quality of coverage. The frequencies used in FRS radios are not intended for good penetrating coverage aboard a floating metal vessel, thus frustrating parents and kids to the point of no use. If the cruise ship has a cell site aboard, the charges for use are normally very high per minute and not cost-effective.
Among the most desired features that universities require of the two-way radio systems is GPS capability. GPS (or Global Positioning System) provides university staff – such as Security patrols – real-time, location-sensitive information and coverage throughout the campus. Either in-vehicle, on foot, or even on bicycles, university dispatch centers can track patrols with GPS capable devices. Dispatch can see who the closest officer is to an incident and dispatch that officer immediately, then notify others to proceed to the location for backup. Universities view GPS on two-way radios as a major benefit to protecting students, staff, and facilities on the campus.
A two-way radio system using a repeater may have great coverage except in areas, such as parking garages and basements of buildings, whose environmental factors create stubborn “dead” spots. In these locations, the repeater signal reaches the radio, but the handheld cannot reach back to the repeater. The traditional solution to this problem is to add Bi-Directional Amplifier and Distributed Antenna System within the building. Although this is a proven approach to get signals into problem areas, it can be complicated and costly. The complication comes from ensuring the signal is not overlapping the original in a manner that interferes with itself. The costliness is due to the need of running antenna coaxial cable from the amplifiers to the trouble zone, which may require many feet of cable and possible drilling through walls.
When there’s a need to extend the coverage of handheld two-way radios, the first option is usually a repeater. However, a repeater isn’t the full answer. A repeater will typically put out much more power and have a better antenna system than the portable radios with which it is communicating. This presents an unbalanced system where the transmit power of the repeater reaches much further than the transmit power of the handhelds.
Couldn’t this be resolved by turning the power of the repeater down to match the handheld? The reality is that often times mobile radios installed in vehicles and handheld radios are in use on the system. Mobile radios typically have greater transmit power than handhelds. Reducing the repeater power output to match the lowest powered device – the handheld – significantly constrains the system coverage, making the usable radius of the system much less than what it could be.
Icom recently attended an exciting conference that gathered top decision makers in K-12 school security. The overarching message from all of the attendees and speakers is the importance of relationship and communication with students, service and solutions providers. Communications technology plays a significant role in enhancing the ability to mitigate and quickly communicate root causes for incidences that unfortunately occur in our schools today. Instantly connecting all staff and security ensures that situation awareness is shared throughout the school and even the district. Communication response time confirms that an incident is managed at the lowest level of escalation.