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  1. Electro132

    How to get a strong signal over a long distance

    Trolling? Hell no. I think you just misinterpreted what i was saying. What i meant was that if i had software in the mircocontroller which enabled me to read the image file and transmit, would i only need to transmit it through a transmitter for it to send the image? I assumed that i...
  2. Electro132

    How to get a strong signal over a long distance

    Ok that's cool. I'll just get a microcontroller. So when i get this, does it encrypt the file i have in the usb and then sends it out through the transmitter? If it does then that would be great. i'm also thinking of just getting a microcontroller board with memory already placed in but so...
  3. Electro132

    How to get a strong signal over a long distance

    Hey yo, i got the NRF24L01 2.4GHz Wireless Transceiver Module Arduino kit. I'm planning on attaching it to the CH376 USB Communication Module Reader Adapter (link : http://dx.com/p/ch376-usb-communication-module-reader-adapter-217605?tc=AUD&gclid=CN6Kv9Sy6bwCFcFhpQodNEcAkg#.Uw2oqoVj6tM)...
  4. Electro132

    Command Script for Read/Write from USB Stick or SD Card

    hey, i found out it was more easier to just get a usb stick fm transmitter, store a file into a usb memory stick, plug the mem stick into the usb fm transmitter and plug the transmitter module in where the FM transmitter was. This transmitter is running at 2.4 ghz. Should work, what do...
  5. Electro132

    Command Script for Read/Write from USB Stick or SD Card

    What if i only need Arduino to read the one file that is stored and transmit it? Or better yet, is there an IC chip available that has a program on it already and that i could just load an image onto it and transmit it?
  6. Electro132

    Command Script for Read/Write from USB Stick or SD Card

    Have you got any ideas on which IC chip is best to use to run a small program and script? I had a look at Arduino but wanted your opinion as i couldn't decide.
  7. Electro132

    Command Script for Read/Write from USB Stick or SD Card

    Hi, Would like to know if anyone can give me links to scripts that allow Read / Write from USB Sticks and SD Cards? The purpose is that the script runs the image file from the USB Stick or SD Card and then gets sent to the transmitter. I already had a look on google and there doesn't...
  8. Electro132

    How to get a strong signal over a long distance

    What about radar equipment? They have TX/RX on them and use a frequency which, after hitting an object within the radius, bounces back and hits the RX on the same device. Wouldn't that give a SNR measurement?
  9. Electro132

    How to get a strong signal over a long distance

    Ok cool. I was thinking of how to say it to you guys but just didn't know how to word it out. So the image (worth 10kb) is stored on a usb and is in jpg format. I'm planning on using an IC which has a script that can read the data on the usb and then execute it sending it through a mobile...
  10. Electro132

    How to get a strong signal over a long distance

    Well its simple. I would like to transmit an image within a distance of at least 1 km. But for starters, Just having a thought, i actually would just like to start transmitting over a distance of 200 meters and go from there. The only thing the image is supposed to do is get delivered or...
  11. Electro132

    How to get a strong signal over a long distance

    What about if i use mobile frequencies to transmit my images or radio satellite communications? Would it be any different or would they also need protocols? Because i thought all i needed to do was attach a usb stick with one image on it, make sure the right ic type can read it and execute...
  12. Electro132

    How to get a strong signal over a long distance

    Actually my project design is custom but i do need the TX/RX part to be able to transmit images for now.
  13. Electro132

    How to get a strong signal over a long distance

    Ok i went and did some reading. So this means that the higher the SNR, the more time it takes to send but less error rate due to increased speed right? I did a calculation on an example (just so i understood) where the TX/RX could achieve a SNR of 60 db at a distance of 50 metres and...
  14. Electro132

    How to get a strong signal over a long distance

    ok i found an example. here's the details: (it is 2.4 Ghz TX/RX) Voltage = DC 12 V Current = 1300mA Operational Freq = 983-1280MHz Distance (open environment) = 1000 - 2000 m (LOS) Video output...
  15. Electro132

    How to get a strong signal over a long distance

    Ok, so for example, you're saying that if i wanted to transmit 500 kb per 10 seconds across in a distance of about 1km, i'd be needing a transmitter/receiver which can achieve a total output of at least (for example) 60 dbm SNR with a required rate of (for example) 18 dbm to maintain the data...
  16. Electro132

    How to get a strong signal over a long distance

    Thanks for the info. So basically transmitting kilobytes to 1 km in distance won't have as much loss as higher data rates like mb? Also howcome there are Carrier to Noise ratios and what do they do different to Signals to Noise ratios? I had a look and they both seem similar.
  17. Electro132

    How to get a strong signal over a long distance

    Ok cool. So basically when Harald Kapp said this in relation to "push the signal into the noise", he was talking about increasing the amplitude of the noise. Am i right? And when he said "the higher the SNR, the lower the effort to transmit the data" he meant that the lower the SNR the...
  18. Electro132

    How to get a strong signal over a long distance

    Ok Cool. So i did the calculation on this website: http://ncalculators.com/statistics/signal-noise-ratio-calculation.htm I think i got this right, so SNR = Signal / Noise which means SNR = 500 Mhz / 150 db Right? I mean this is just a guess of what you guys are telling me. If it is...
  19. Electro132

    How to get a strong signal over a long distance

    What is snr? Also, what do you mean by "pushing the signal closer and closer into the noise"? If i am using an image to transmit, how is that related?
  20. Electro132

    How to get a strong signal over a long distance

    Yes wirelessly. Just small kilo bytes possibly 1 megabyte max. Not a remote camera, just sending an image that's on the memory to a destination 1km away and having it appear at the end. Do you think there is alot of power involved?
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