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I need to have the same power received by the receiver from the transmitter antenna and not specificaly the same field strength. So that's why I would like to know if an amplifier would do the job? betwixt said that the received rf power would be different and I didn't understand why?
Thanks. Since, the RF power would be smaller in a case (5 dBi amplifier + 5 dBi antenna), what would be the advantage of putting an amplifier with a 5 dBi antenna vs not including it with a 5 dBi antenna? How much does the 5 dBi amplifier improve the RF power?
I wanted to know if the radiation pattern and the tranmitter power would be similar in those 2 cases? But following BigBoss reply, I would also like to know if it's only the S/N caractherictic that would change and how mush would it decrease, a little or a lot ? and which antenna and amplifier...
sorry, but I did not understad your explanation. What do you mean by if the patterns are the same? Do you mean that the transmitted signal would be the same from those 2 cases (power and radiation pattern)?
Hi
Is it equivalent to replace an antenna of gain 10 dBi by an antenna of gain 5dBi with same bandwidth+ one 5 dB gain amplifier? How would the transmitted signal be different in those 2 situations in terms of power? and what else would be different?
I am trying to create a system in which I would like to connect an RFID reader to a cellphone. I would like them to exchange information but I am afraid that they use different frequencies. What would be the steps, techniques and technologies that we would use to transfer information from one to...
I would like to create some sort of devices such as cellphones but they operate at different frequencies. I need to connect them with some sort of wire so one can send information to the other directly but I need help on how to do information and frequency conversion.
Hi
If I have 2 devices working on different frequencies, for exemple one is working at 900 MHz and the other at 1200 MHz. I would like to write the information from one to the other one. Which methodology and components do I need for that?
Thank you
Cellphone and base station communication
Hi
I would like to know. How do cellphones have enough power to send information to base stations ? Also, could you please describe me how can we calculate the maximum distance a cellphone signal can reach for exemple in desert (in a place where there...
Hi
I would like to know if base stations send informations to computers or only to cellphones? If base stations only send information to cellphones and wireless telephones, what sends information to computers or what makes the link in a communication between 2 computers which are in different...
Thanks.
How do cellphones communicate with wireless telephones or with WLAN computers when they use different frequencies ? Do base stations convert informations present one cellphone frequency and write it on the wireless telephone frequency or WLAn frequency ? How does it work?
Wikipedia and Google are too complicated because they give clear information to my questions. I don't know which one is the answer to what I am looking for.
What is the main communication technology and frequency to send information to cellphones and computers? And how do they differentiate...
Hi
I would like to know which frequencies and technologies do base stations use to send information to today's cellphones and computers? and which technology helps them differentiate one cellphone from another ? Do they have some sort of database application? How does it work?
Thank you
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