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uplink frequency-1710-1785MHz downlink frequency-1805-1880
To avoid interference
In the CDMA technology It is either between your Handset and the Mobile Station. The dedicated frequency are allocated for u sending your data to the mobile station (Uplink freuency) and a dedicated frequency is reserved for you to receive your data from the mobile station (Downlink frequency)
So that they can both be used at the same time (i.e. full duplex) without interference.
It is an electronic device on board a geostat satellite to receive uplink data and picture bits,amplifying it before converting it to a downlink freqency bit stream and sending it down to earth.
Uplink and downlink are frequencies Communication from earth station to satellite in uplink and communication from satellite to earth station is downlink Always uplink freq.>downlink freq.
uplink frequency-1710-1785MHz downlink frequency-1805-1880
Uplink --> 890 MHz - 915 MHz Downlink --> 935 MHz - 960 MHz
Uplink is from MS to BS Downlink is from BS to MS P.S: BS=Base Station, MS=Mobile Station e.g cell phone
Uplink frequency is a frequency that goes from the ground to the satellite. Downlink frequency goes from the satellite to the ground.
Worldwide downlink for voice - 145.80Worldwide packet uplink/downlink - 145.825Region 1 voice uplink - 145.20Region 2 and 3 voice uplink - 144.49Worldwide uplink for cross band voice repeater - 437.80Worldwide SSTV downlink - 145.800For more information, visit the NASA ISS Amateur Radio page at http://spaceflight.nasa.gov/station/reference/radio/
To avoid interference
The downlink is greater than the uplink on most internet connects due to overall demand for bandwidth. Downloading takes up a majority of internet usage and connections are optimized for it.
Hi, For every GSM band there are Uplink and downlink frequencies. Example: GSM 900 TX: 880 MHz to 915 MHz is an uplink frequency range GSM 900 RX: 925 MHz to 960 MHz is a downlink frequency range Aloha, Maverick
Duplex distance/spacing is the distance between the uplink and downlink frequencies
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downlink becouse frequncy / power low compare to uplink