AlexM

Hello, I hope everyone is doing well! I have some questions I’m hoping some people can answer for me. So, my company I work for does security deployments for disaster zones and other similar situations. We usually get contracted by the state or other agencies to defend people and property from looting. Everyone in the company has their GMRS license and we use them legally for some of our daily operations where we are headquartered out of. We are wanting to build 10 high powered mobile gmrs repeaters that we are able to put in our vehicles and put in a circle around the perimeter of the disaster zone to provide contact from our HT’s to each other. What is the best way of doing this. I’ve looked at Simplex repeaters but don’t want to have the same messages repeated twice. I want more of a traditional repeater and also have everyone be able to hear the conversations. I have also looked at the Vertex VXR-1000U units which attach to the vehicles 50 watt mobile unit. I really like how they seem to work. But am not sure how I would go about setting those up to operate to work for GMRS on the same frequency. Is there any suggestion for equipment or another good way of doing such mobile repeaters. I know this may be confusing even I am confused a bit over what I wrote. Thank you! Alex

Wow this is great information. Thank you for taking your time to retrieve this info for me.

Okay, thank you so much for the response. The repeater will be in central PA so a lot of valleys and ridges. Also I've setup small antennas on my home but never on a high rise building like this. What should I know about grounding, what type of grounding is needed? I really don't want the building to get struck by lighting and burn down

Hello, I hope all is well! I recently was given the opportunity to setup a legal GMRS repeater on top of a 152-155 foot high rise building that is in my town. My town consists of many high rise buildings around the same height with the tallest being 158 feet tall at the current moment, but they are currently building several more so who knows how tall those will be. The repeater will be 50 watts and needs to be able to serve my collogues who are inside these high rise buildings with there HT's scattered 10 miles max in each direction, also each collogue has their own GMRS licenses so its legal to use. My questions are what is the best antenna to use for this that will not be crazy expensive also is 50 watts enough? I was going to use a Vertex Standard VX-7000U Desktop Repeater, or is there a better repeater I should be looking at that is around the same used price. Also what type of gain antenna should I be looking at for this application. I would also like to get more then 10 miles in each direction but am trying to be realistic. Thank you! Alex