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RSSI
Related Posts

  • Forum Post: Re: Location Engine CC2431

    LPRF Rocks the World
    Hi JP, RSSI Location is a nice technology. However, since it is amplitude based and not phase based like GPS it will never be that accurate. To be succesfully with this technology you will need to invest most of your time on network deployment, characterisation and infrastructure to really understand...
    on Jul 11, 2008

  • Forum Post: Re: which RF chip in 2.4GHz gets the best RSSI value precision?

    LPRF Rocks the World
    Good questions, the radio in this devices is the CC2420. I would check the datasheet for the CC2420 RSSI dymanic range and resolution to give you an indication. It will of course depend upon your RF Evironment at the time the measurement. The RSSI reading is very linear for these devices. Another idea...
    on Oct 23, 2008

  • Forum Post: Re: which RF chip in 2.4GHz gets the best RSSI value precision?

    LPRF Rocks the World
    blacksmith, Proximity sensing is a good application. Navigation and Location with CC2431 can facilitate many exciting applications Here is a paper that can provide you an even better understanding of RSSI. http://www.eecs.harvard.edu/emnets/papers/levisEmnets06.pdf LPRF Rocks the World
    on Oct 24, 2008

  • Forum Post: which RF chip in 2.4GHz gets the best RSSI value precision?

    blacksmith
    CC2430 or CC2431 or any other?
    on Oct 23, 2008

  • Forum Post: CC2431 Location Engine current consumption

    RF-Explorer
    Hi, Are there any published (or non-published!) figures for how much additional current is consumed by the Location Engine when enabled on the CC2431? Thanks.
    on Oct 24, 2008

  • Forum Post: When I read RSSI value continually, C1101 will crash.

    KevinLee
    A function that I would like to read RSSI several times. But when TAG in RF transmit phase and syn chars are the same, then CC1101 crashed. How do I solve this problem?
    on Nov 21, 2008

  • Forum Post: Utilizing LCD display on SmartRF04 for SimpliciTI examples.

    Justin Lee11919
    Hey there. I've been trying to modify the SimpliciTI examples to display the RSSI values on the SmartRF04's LCD display but haven't been able to find any examples or documentation on how to do so. What files do I need to start displaying on the LCD screen and is there any documentation on...
    on May 15, 2009

  • Forum Post: CC1101 RSSI value

    Parcour
    Hello, currently I try to read out the rssi value of the cc1101. It works, but the value is only between -20 dBm and - 60 dBm. Values below -60 dBm are not possible because there is no connection anymore. I'm using the MSP430 Experimenter's Board. Do you have an idea? Thanks a lot!
    on Jun 15, 2009

  • Forum Post: Re: FAQ: Calculation and usage of LQI and RSSI

    Sarath Nair
    Hi I would like to know the acceptable threshold value that can be compared with the digital RSSI output values to detect the presence of a signal in a given frequency channel. Does this threshold value vary for different frequency ranges?? I believe, even if there is a strong noise, the RSSI value...
    on Jul 8, 2009

  • Forum Post: RSSI/CS

    Sarath Nair
    Hi I would like to know the acceptable threshold value/s the digital RSSI output values should probably have to detect the presence of a signal in a given frequency channel. Does this threshold value vary for different frequency ranges ?? I believe, even if there is a strong noise, the RSSI value will...
    on Jul 9, 2009

  • Forum Post: question about the attenuation of cc2431's RF signal passing though something

    John Lin13186
    Hi , I make a tracking board using cc2431 and mount it on a shopping cart. The configuration of cc2431 is by default. I want to figure out which places of the shopping cart are acceptable to place the tracking board. Below are some test I have done: 1) I have tried several places, i.e. front, back...
    on Jul 8, 2009

  • Forum Post: location engine of CC2431 based on RSSI

    John Lin13186
    In my practical use, I find the RSSI varies greatly when I likely keep the transmiter-receiver environment unchange, except some disturbance, for example patting the power cable, being body crossing the sight of line and etc. I find in the datasheet that several factors may control the RSSI, such as...
    on Jul 9, 2009

  • Forum Post: RSSI "holes" with CC1100

    Bernhard Firner
    Hi, We've been taking some histograms of the RSSI values recorded by the CC1100 and we've noticed that there are some values that do not occur as often as they should. We have our transmitter on a moving platform that makes it sweep through different RSSI ranges but when we look at the RSSI...
    on Jul 6, 2009

  • Forum Post: Re: RSSI

    esy
    Hi. You will need to put the radio in receive mode first. I.e. set frequency, RX filter bandwidth, etc and use RX strobe. If the radio is not in RX, the RSSI register value will not be updated.
    on Jul 17, 2009

  • Forum Post: Re: Surge additional RSSI offset

    Per H
    Hi, Which chip are you using? Are you using standard register settings from smartRF studio? If so, what settings? /P
    on Jul 19, 2009

  • Forum Post: Re: Typical RSSI value in dBm at CS Threshold with Default MAGN_TARGET table for 500kbps datarate

    Chris from Pinterec
    This is Chris Pinter with Pinter Electronics Consulting. I am an RF Engineer and will offer you some suggestions. If you need to get a hold of me directly please visit http://www.pinterec.ca/contacthtml.html The datasheet shows the two extreme cases for your reference. It is unrealistic to have a table...
    on Oct 14, 2009

  • Forum Post: CC110x sensitivity dip on -55..-60 dBm

    Dmitry Zhelobaev
    We use CC1100 and CC1101 in our wireless applications. Mode is: 500 kbit, MSK, 430 MHz. 0x15, 0x00,// DEVIATN (x) 0x1B, 0xC7,// AGCCTRL2 (x) 0x1C, 0x00,// AGCCTRL1 (x) 0x1D, 0xB0,// AGCCTRL0 (x) We have a good sensitivity (BER < 10^-5) on the intervals -22...-55 and -60...-83 dBm (RSSI). BUT...
    on Nov 24, 2009

  • Forum Post: CC1020 RSSI flatline issue

    sjf
    We are having an issue with our CC1020 that we are calling the RSSI flatline issue. When this problem appears, the CC1020 stops providing the data transmitted by our CC1050 based system. The problem is so named because the RSSI register seems to get stuck on a single constant value. In our GUI software...
    on Jul 7, 2009

  • Forum Post: RSSI and CC2500

    rgimone
    Hi All, In my application I am reading the RSSI value of my transceiver by appending the RSSI value in the transmit frame. After reading the interesting discussion http://e2e.ti.com/support/low_power_rf/f/160/t/18267.aspx some doubts remain unsolved in my mind. In particular, from there it seems...
    on Jan 15, 2010

  • Forum Post: RSSI

    Sarath Nair
    HI.. Using CC1101 (in idle state), can we detect the presence of a signal by reading the value of the RSSI register without configuring the tranceiver in RX mode? Or is it necessary to configure the CC1101 in RX mode to do this? Sorry for this silly doubt :) Sarath
    on Jul 17, 2009

  • Forum Post: RSSI in CC1101

    Simon Attard
    Hi. I am using a CC1101 transciever chip with the SmartRF04 board. I want to transmit packets and then when they are received, I find the RSSI value. I set PKTCTRL1.APPEND_STATUS = 1 so that when a packet is received, I can get the RSSI value which is appended to the packet. My problem is that...
    on Mar 26, 2010

  • Forum Post: PER and RSSI

    buta san
    Our RF module is based on CC1101 reference design (both schematic and PCB) and register settings from SmartRF Studio, its specification is: asynchronous serial legacy mode GFSK 76.8kBaud 915MHz 1. We observe both PER and RSSI jump up when the rx power is around -45dBm. Meanwhile AGCTEST shows LNA...
    on Jul 3, 2010

  • Forum Post: RSSI value from cc430F5137

    Richard Salin
    Hello I'm planning on performing a simple range test with a custom board and wonder how I could get the RSSI information from the CC430F5137? I found a application note (swra114d) that gave me some basics, but still I'm uncertain how to actually access the value in the MCU... Best regards...
    on Sep 15, 2010

  • Forum Post: How to get the BER with the SmartRF04EB kit?

    jhony arvey
    hi few days ago I bought the development kit SmartRF04EB The tool calculates the PER, but I need to measure the bit error rate "BER", as I can measure the BER with the SmartRF04EB kit?
    on Oct 16, 2010

  • Forum Post: Output power issue in CC2500 RF Transceiver

    sadagopal venugopal
    Hi, We have used CC2500 RF Transceiver chip in our prototype design and we are in Test phase now. The RF output power was set at 0dBm in the program; While probing the differential RF output lines (immedialely after DC blocking caacitor), We observed that the Max output from RF_N is -12dBm and the...
    on Oct 16, 2010
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