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Hi,
i would like to know if there are some phones which use the same antenna for transmission as the one they use for reception of the signal?
If yes, in that case, how do they separate the transmission from the reception part?
Do they use some kind of a switch or chip for that?
Thank you
Hi,
I would like to know when they say in this website (**broken link removed**)
One rule of thumb often used for Faraday cages to prevent transmission is that the holes need to be no larger than 1/10 of the wavelength of the signal
I would like to know what does it really mean out of these 4...
Hi
I would like to know how can I know if my Arduino UNO ATmega328 is working properly because I can't upload a code on it?
When I plug it on a computer I see the light of the ON led and the L led always ON, and If I press the reset button nothing happens, all the leds stay the same. I would...
Hi
I am new with micro controllers. I will need to know
1)if I can use MPLAB C18 Compiler with pickit 3 ?
2)and if that compiler can program all the instructions and functions on the pic micro controller as other expensive compilers like Micro C Pro and CCS compiler can? Or for exemple does...
Hi,
I am new with microcontrollers. I ordered the picket 3 programmer and now, I would like to know if I absolutely need an ‘’PIC Programming Adapter’’ also to program a pic microcontroller or I can use a simple breadboard instead of the pic programming adapter? If I don't need it, can you...
Hi
I need a circuit with 6V supply. That is why I connected these 4 batteries (1.5 v) together as in the attached picture. When I measure the voltage, it gives me 6 V. However, the problem is when I am measuring the current, the batteries get very hot after keeping the probes as on this picture...
Hi,
My device needs 11V and 1A from cable output . I would like to know if I could give him 11 V and 4 A from batteries
I would like to know if it's ok or is it it bad for my device to have 4 timers higher current supply than what is needed?
Is there some way just to reduce the current to 1A...
Hi,
If I have ATmega328 microcontroller connected to a 433 MHz transmitter and another ATmega328 microcontroller connected to a 433 MHz receiver and I want the transmitter to send few bits every 1 minutes to the receiver wirelessly by itself.
My project is similar to this one ...
I want xbee wireless communication to send information from one arduino to another (standalone mode). if I install an xbee antenna on the arduino, would I be able to receive data from another arduino connected with xbee antenna? Both should be standalone ( programmed by PC before but not...
Hi,
I would like to know the answer to these 4 questions please
1-Which component inside the Arduino is his timer component ? (for exemple, which components is vital to make DEL light ON after being 5 minutes OFF?)
2-How much data (bits) is it possible to send wirelessly through xbee antenna...
Hi
I would like to know if each receiver's modulation has some noise figure (NF) level associated? If yes, I would like to know what is the ASK and FSK modulation's noise figure ?
(For exemple, if receiver uses ASK modulation. Than, we can say that NF = x dB.)
thank you
What if my mixer is passive for exemple it's LT5511 (http://cds.linear.com/docs/en/datasheet/5511f.pdf) and I should have 5 dBm at the mixer's output. What would be the power at inputs (IF and LO) and how do I calculate them? My operating frequency is 900 MHz.
Thank you
Hi,
I have a frequency mixer of gain = 7 dB (at frequency which I need). His PLO = -5dBm, PRFIN = -23dBm. At the output of the mixer (RF output), the power is 5 dBm. I would like to calculate the power level at the mixer's inputs.
I am thinking that maybe the power at each of the two mixer...
My question was to find transmission power value in dBm but you gave me ''Change in reflection coefficient''. How can I use it to find the tag's transmission power? Is there a formula in which I can incorporate this coefficient to find the transmission power? or is there an example?
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