• State
  • Locked Locked
  • Replies 1 reply
  • Subscribers 16 subscribers
  • Views 1560 views
  • Users 0 members are here
Support feedback
Options
Options
Related

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

CC2500: More than 2km range needed

Bhautik Ramoliya98
Intellectual 290 points
Part Number: CC2500

Hello there,

       Actually I am working on one wireless module design and I want to know about the possible solution to increase a range of CC2500 2.4Ghz Transceiver to use for more than 2KM range.


      I know that with the SubGhz transceiver it can be easily achievable. But I required to stick with the 2.4GHz Band.

      
      I am fine with the supply voltage (up to 5v) and current, to use any PA and I required to use the uFL type of antenna only. And the application will be a kind of drone. (I can select PA for more than 22dBm output power, Noise figure less than 4dB, sensitivity >100, Rx gain  12dB, TX Gain 28dB.

     
     So here some of the questions are:- 

    a)  do is it possible to get Up to 15 kBaud/s for > 2 Km (GFSK Modulation), if not then could you please suggest how much datarate max we can get with the 2Km distance, any reference of the formula or link will also be fine?
  
    b)  Antenna diversity (2 antenna options in PA) will increase a range? As once of the RF-Front End (PartNumber is:-  https://www.skyworksinc.com/en/Products/Front-end-Modules/SE2436L) from Skyworks are providing that feature.

    c) I know that 2.4Ghz channel is a bit noisy, could you please point some suitable solution regarding the filters, noise remover and range extender for this type of application?

    d) any other suggestion about the components to include in the design? as FCC/CE certification might be required with this product.



    Any hint to the above questions will be very appreciated, thanks for your time.

   *Erroneous words are a feature, not a typo



Regards and Be Safe,
Bhautik

  • 0
    TI__Guru**** 317180 points

    a) I doubt it. Play some with http://www.ti.com/tool/RF-RANGE-ESTIMATOR to see what is required. Note that in the tool it's the dB numbers that are important. Select a chip/ setting that gives close to the datasheet sensitivity of CC2500.

    b) Yes and no. Theoretical range, no. But practical range, maybe. Worst case you can get reception on a given spot and if you move the receiver 20 cm you get nothing. With antenna diversity you can avoid blind spots easier. 

    c) As you say the 2.4 GHz band is crowded and you will not be able to remove the noise on the channel you are operating on.

    You also have to check how much power you are allowed to actually send on this band.