How To Overcome Radio Communication Challenges

[@JH-di3nu]

This is why ERRCS (emergency responder radio communication system) are so important in new building. These are a requirement for all new building in my city. There is an antenna pointing back to the city’s main dispatch antenna, along with antennas throughout the building to boost emergency radio traffic.

[@DANEMSPRINGER]

Guess a VRS is too much to ask for?

[@caossax]

Hey guys! hello from Brazil. excellent video, I have a question: This situation isn't the because they used a digital system? Here in Brazil our police has difficulty in communication because they changed from analogic system to digital system. the range is very less with this system.

[@dexyoutube910]

Do you have a old radio or not used but still working ?? please donate to us.. We are volunteer from Philippines THANK YOU....

[@ShaunPuzon]

Maybe I'm just ignorant because I'm not a first responder, but I find it kind of ludicrous that this is allowed to happen. Why is the density of this agency's towers such that their portable radios can even have the possibility of going out of range within their operational area? I understand that concrete basements and other structures significantly degrade radio transmissions, but agencies should be given the appropriate funding to increase the density of their repeater towers so that coverage is not just adequate, but dependable. These people are risking their lives to save others and they should be able to key up and talk to anyone they need to on their radio system, at any given location within their service area, without worrying if their transmission is getting through or not.

[@NX-gw7wg]

A system such as a BDA (Bi-Directional Amplifier) and/or a distributed antenna system can solve alot of these issues but they are only required in buildings built after a certain date. This method is used for buildings that aren't required to have those systems due to build date or building owners not being able to afford or willing to retrofit their older buildings with a BDA. In my opinion critical use and high occupancy buildings such as hospitals, schools, large office buildings, ect should have a BDA system regardless of the building age.

[@TheEnderman67]

Radio waves are a very complex thing, whose reception and transmission is dependent on a huge number of factors. Even if you had a site (repeater or controller) at every single hilltop there will still be the occasional dead zone. You could put a site every city block, but at the current exorbitant costs that come with equipment from Tier I companies like Motorola and Harris, it would be prohibitively expensive even for the most well funded municipalities. Furthermore, the law of diminishing returns prevails. You could double your site density and still have the occasional dead zone because that's just how radio is.

[@bluemonday8914]

@@TheEnderman67 I work in public safety comms. The cities around me actually require all schools, hospitals, and offices over a certain occupancy to have BDA systems installed. I’m usually the one who does the initial testing to determine if it’s required or not. Those systems are SUPER expensive (upwards of 80k, also as far as I know not subsidized by the towns) but make a huge difference in environments with extremely high noise floors (upwards of -60 dbm, higher for hospitals with all the equipment they have running). it’s truly crazy how much of a difference they can make. It can go from not being able to hit the dispatch rx site to working better than a UHF/800mHz simplex just trying to talk to someone outside the building