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.
1 answer
uplink frequency-1710-1785MHz
downlink frequency-1805-1880
1 answer
In the sense of a mobile communication:
Downlink frequency is that used by a base station to communicate with the Mobile.
In satellite communication also the same theory exists
downlink is the return path.
1 answer
Uplink --> 890 MHz - 915 MHz
Downlink --> 935 MHz - 960 MHz
1 answer
Various sites online offer Downlink music and sounds for download, including mp3bear, the piratebay, junodownload, and iTunes. The prices vary, as do the legality of the sites, so customers need to take care to not pirate Downlink's music.
1 answer
Uplink is from MS to BS
Downlink is from BS to MS
P.S: BS=Base Station, MS=Mobile Station e.g cell phone
1 answer
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.
1 answer
Duplex distance/spacing is the distance between the uplink and downlink frequencies
1 answer
For more information, visit the NASA ISS Amateur Radio page at http://spaceflight.nasa.gov/station/reference/radio/
1 answer
hokjkljkljlkjljl
1 answer
downlink becouse frequncy / power low compare to uplink
1 answer
The downlink frequency for communication with satellites to Earth can vary depending on the specific satellite and its communication system. Frequencies typically used for satellite downlink to Earth are in the range of UHF (Ultra High Frequency) to Ka-band. The exact frequency used will depend on factors such as satellite design, mission requirements, and regulations.
2 answers
Uplink translates also to Upload - where you send data to another destination. Like when you want your data to be acessed by any other person you upload that thing and data rate of uploading is called as uploading speed.
Downlink translates to Download - where you receive data from another destination. meant that when you want to acess any data from any source and data transfer rate from downlink is also known as downloading speed
1 answer
This is actually the EGSM uplink band. It carries signals "up" from the mobile station to the base station. EGSM downlink is from 925MHz to 960MHz and carries signals from the base station "down" to the mobile station.
1 answer
A downlink signal;
a Ka Band signal
1 answer
full form of HSDPA is High-Speed Downlink Protocol Access
1 answer
High Speed Downlink Packet Access - it's a data transfer protocol for mobile phones.
1 answer
Most two-way radios are 'duplex' transceivers. This means they transmit (uplink)on one frequency and receive (downlink) on another- spaced at least 13 MHz apart. This stops interference between the radio's components.
1 answer
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
1 answer
A downlink signal
A Ka Band signal
1 answer
Uplink frequency is a frequency that goes from the ground to the satellite. Downlink frequency goes from the satellite to the ground.
1 answer
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)
2 answers
1 answer
It varies - according to which system is in use. The related link to Wikipedia lists the uplink & downlink frequencies.
1 answer
For communication satellites the range is much higher than that of communication relay. Communication Satellite can cover up to several thousands of kilometers.
For communication relay, the uplink and the downlink frequency is the same. But for communication satellites the uplink and the downlink frequencies are different in order to avoid interference.
1 answer
High Speed Downlink Shared Channel or H.S.-D.S.CH. is a transport layer channel added to the High Speed Downlink PacketÊAccess (H.S.-D.P.A.) to enhance third generation (3G) mobile telephony communications. This allows networks based on Universal Mobile Telecommunications System (U.M.T.S.) to have higher date speeds and capacity.
1 answer
Yes, Nokia N82 has 3G capabilities usig HSDPA (High Speed Downlink Packet Access) technology
1 answer
So that they can both be used at the same time (i.e. full duplex) without interference.
1 answer
Graham Michael Weaver has written:
'Dual antenna studies of microwave scintillations on a satellite downlink'
1 answer
There is no specific person. Skrillex, Excision, Downlink, Datsik, SKisM, there are many people. Dubstep originated from grungy garage and experimental reggae.
1 answer
due to path loss : higher is the frequency higher is the patrh loss
1 answer
Chi-Hang Fred Fung has written:
'Precoding for the multi-antenna multi-user downlink'
1 answer
Douglas J. Mudgway has written:
'Uplink-downlink' -- subject(s): Deep space network, History
1 answer
Really fast.
ANS 2 - Global Hawk operates on satellite downlink so information transfer is near real time.
1 answer
You would need to know the LO frequency from the satellite.
Ex- C-band is 2200Mhz
If you UL is 6.0GHz you DL would be 3.8GHz
1 answer
High Speed Downlink Packet Access (HSDPA) is a packet based technology for W-CDMA downlink with data transmission rates of 4 to 5 times that of current generation 3G networks (UMTS) and 15 times faster than GPRS. The latest release boosts downlink speeds from the current end-user rate of 384 kbps (up to 2 Mbps according to standards) to a maximum value according to standards of 14.4 Mbps. Real life end-user speeds will be in the range of 2 to 3 Mbps.
ASHOK KUMAR SINGH
MBA I-SEM
NBA SCHOOL OF BUSINESS
NEW DELHI
1 answer
Uplink translates also to Upload - where you send data to another destination. Like when you want your data to be acessed by any other person you upload that thing and data rate of uploading is called as uploading speed.
Downlink translates to Download - where you receive data from another destination. meant that when you want to acess any data from any source and data transfer rate from downlink is also known as downloading speed.
1 answer
Tetra communication systems typically operate within the frequency range of 380-400 MHz for uplink and 390-410 MHz for downlink transmissions.
1 answer
The satellite transponder typically works in either the C-band (4-8GHz) or the Ku-band (12-18GHz) and these are for the downlink (from the satellite to the earth station).
1 answer
It is because a mobile is operated on a battery with low power and therefore it sends signals on low(uplink) frequencies whereas a base station is driven by high power and can easily send signals on high(downlink) frequencies. This can be verified by Friis equation which says Transmitted power and Transmitted frequency are directly proportional.
2 answers
Broadcast Control Channel (BCCH)
-
DOWNLINK
- This channel contains system parameters needed to identify the network and gain access. These paramters include the Location Area Code (LAC), the Mobile Network Code (MNC), the frequencies of neighboring cells, and access parameters.
Frequency Correction Channel (FCCH)
-
DOWNLINK
- This channel is used by the MS as a frequency reference. This channel contains frequency correction bursts.
Synchronization Channel (SCH)
-
DOWNLINK
- This channel is used by the MS to learn the Base Station Information Code (BSIC) as well as the TDMA frame number (FN). This lets the MS know what TDMA frame they are on within the hyperframe.
* The BSIC was covered in the Introduction to GSM Tutorial. You can also read about the numbering schemes used in GSM.
Cell Broadcast Channel (CBCH)
-
DOWNLINK
- This channel is not truly its own type of logical channel. The CBCH is for
point-to-omnipoint
messages. It is used to broadcast specific information to network subscribers; such as weather, traffic, sports, stocks, etc. Messages can be of any nature depending on what service is provided. Messages are normally public service type messages or announcements. The CBCH isnt allocated a slot for itself, it is assigned to an SDCCH. It only occurs on the downlink. The CBCH usually occupies the second subslot of the SDCCH. The mobile will not acknowledge any of the messages.
1 answer
HSDPA stands for High-Speed Downlink Packet Access. It is an enhanced form of the mobile communications protocol 3G. It is often called 3G+, 3.5G or turbo 3G.
1 answer
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.
1 answer
routers basicaly has 2 ports, one is uplink and 1 is downlink, is any1 is not assigned , anyone can be assisgned for connecting to the switch
1 answer
UMTS is the 3rd generation wireless technology while HSDPA (High Speed Downlink Packet Access) is the feature of UMTS technology where users can download a stream of 14.4 Mbps with HSDPA.
1 answer
here is the satellite & frequency details of Bhaarath TV ================================================================
SATELLITE: Insat 2E at 83°E
DOWNLINK FREQ: 4042
POLARISATION : Vertical
SYMBOL RATE: 8000
FEC: 7/8
1 answer