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Recent content by ceg

  1. C

    What is the sequence of Output Of GPS

    Look for GPGGA, which is has fix data with lat & long information.
  2. C

    How to test circular polarized antenna

    Thanks vinoth, but my question is by seeing radiation pattern of the test antenna is it possible to tell the test antenna is CP or LP ? For testing CP antenna? what type of Reference antenna i should use?
  3. C

    gps returning wrong coordinates

    When your device start to report location NMEA data(GGA data), how much time is your GPS module cold start time?
  4. C

    How to test 2 dipole antenna?????

    Re: How to test 4 element dipole antenna array????? From your question i understand that, you have 4 feed antenna array. You can use corporate feed type of 2-way powerdivider. If you have plan to use 4 to 1 powerdivider/combiner, check the amplitude balance and phase numbers of the power...
  5. C

    How to test circular polarized antenna

    Hi, How to identify polarization of any antenna by testing? How to test circular polarized antenna ? Thanks
  6. C

    Why most of the LNA/PA output are differiantial pair lines?

    Why most of the LNA/PA output are differiantial pair lines? Is there any relation to improve linearity? Thanks
  7. C

    How Phase noise improves selectivity?

    How Phase noise improves selectivity? Is there any direct formulae? thanks
  8. C

    What are the country use narrowband radios?

    What are the country uses narrowband radios? What is the bandwidth? Thanks
  9. C

    Difference between WIFI and WLAN

    Wi-Fi stands for Wireless fidelity, it is a gendral term used to call 802.11a/b/g. WLAN stands for all 802.11 stands, it includes a/b/g/d/h/j/i.
  10. C

    The design flow of RF module design

    Do you have any RF simulation tool to run RF model?
  11. C

    how MIMO acheive Higher data rate?

    HI, How MIMO acheive Higher data rate? What is the significance of SNR with this higher data rate? Thanks
  12. C

    Why sensitivity is less in 54Mbps 64QAM OFDM ?

    Hi, Why sensitivity is less in 54Mbps 64QAM OFDM ? then 6MBPS QPSK OFDM? What is the SNR required for 6MBPS OFDM & 54Mbps 64QAM OFDM in 802.11g? Thanks
  13. C

    In 802.11n MIMO how we are acheiving more range?

    Hi, In 802.11n We are trasmitting with more antennas, so as per RF rule we are dividing the power, then range should reduce. but in MIMO how we are getting more range? Thanks
  14. C

    Metamaterials HFSS example file

    Hi, Can i get HFSS sample files for metamaterial antenna. I am just starting to learn or metamaterials so, planning to start with an example file in HFSS, Pls help. Thanks ceg
  15. C

    How reliable are chip antennas?

    Hi All I saw some chip antennas, did any one work on that? how reliable it is? Thanks Ceg
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