Wireless Communications Industry
I want to convert a 4-20 ma dc signal (from a sensor) to a suitable frequency and then want to transmit that to a 10 km. Distant place through wireless transmitter and thereafter receive the frequency by a suitable receiver and then convert again the frequency into the original 4-20 ma dc signal. What type of online wireless transmission system will do the work easily?+9 Other Responses
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according to this cnet article:
verizon wireless is trying to quell its competitors' claims that they offer better performing wireless networks than it does with results of a new study published by rootmetrics. Big red highlighted findings from a recent rootmetrics national test which shows that verizon dominated in five out of six categories that were tested by the wireless analytics company during the last half of 2013. Specifically the test looked at network reliability, call completion and quality, text message service, and data speeds. Overall verizon ranked no. 1 nationally with at&t following as a close second. Sprint and t-mobile came in third and fourth, respectively.
The reality is that whether verizon, at&t, or t-mobile are touting test results, it's difficult to compare because the actual tests used to boast about these claims aren't measuring the exact same things. Verizon was the first major carrier to deploy lte. And the company has used its head start to its advantage in terms of building out its network. As a result, competitors were hurt by comparison because where lte is unavailable, customers are falling back onto 3g networks, which offer much slower throughput. Rootmetrics data suggests that verizon had the best, or tied for the best, service in 45 states. At&t was best or tied for first in 16 states.
In short, the study reveals little new information in terms of how the carriers stack up against one another. Verizon is still considered the most reliable network with a strong lte network that offers service in more places than anyone else. At&t is a close second. And sprint and t-mobile need better coverage to truly compete against verizon or at&t.
What is your opinion of verizon's claims and of the argument in the cnet article that rootmetrics results are not being used accurately?
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the zintro blog team+2 Other Responses
Price Benchmarking For Fixed & Wireless Telecom Services
Looking for price bench marking and other sourcing and contract related information for fixed and wireless telecom services for countries including us, uk, germany, australia, netherlands, sweden, denmark, india, south africa etc.
If you possess the right expertise, please do respond. Thanks! +27 Other Responses
i am in the beginning stages of a service offering that will help protect and preserve personal freedoms from the malicious use of today's tracking technology placed without the owners consent. In order to identify the existence of gps tracking devices, i need to be able to verify its existence on the vehicle. A small cell or cloned based station will help accomplish that task by having the device connect to it which can then assist myself in locating and eventually removing the device for the customer.
I need a wireless and cellur expert to help build this custom device (small cell or cloned based station)+5 Other Responses