This model can create a 99.7% available link so that Ku-band can be applied in Indonesia. This statement has made many people unsure about using Ku-band (11 – 18 GHz) in Indonesia. From the Rayleigh criterion, the diameter of a parabolic dish required to create a radiation pattern with a given angular beamwidth (gain) is proportional to the wavelength, and thus inversely proportional to the frequency. Compared with C-band, Ku band is not similarly restricted in power to avoid interference with terrestrial microwave systems, and the power of its uplinks and downlinks can be increased. 437.505 .
Because of the high stakes, many in the industry are comparing the Ku-band and Ka-band technologies. The antenna sizes, ranging from 0.9m -1.8m (~6ft), are much smaller than C band because the higher frequency means that higher gain can be achieved with small antenna sizes than C-band. Measurements of rain attenuation in Indonesia have been done for satellite communication links in Padang, Cibinong, Surabaya and Bandung. However, the latest generation of Ka-Band satellites feature technology that helps mitigate the rain-fade problem. Download the CompuSat Satellite Database; Orbital Chart; History Chart; In the Clear Test Channels; Support. | ADSL, wireless, cable, fiberâ¦. The satellite operator's Earth Station antenna requires more accurate position control when operating at Ku band due to its much narrower beam focus compared to C band for a dish of a given size. As power levels on both C and Ku band satellites have increased over the years, dish beam-width has become much more critical than gain.
Return to Satellite topics menu . Some would argue the Ka vs. Ku debate echoes the discussion in the 1980s about the then-emerging Ku-band and the legacy C-band systems. The C band is primarily used for voice and data communications as well as backhauling. Spot beam systems are by their nature limited in coverage.  This problem can be mitigated by transmitting a higher powered signal from the satellite to compensate.
Dedicated Bandwidth Services (DVB-S2X, SCPC), Sentinel Bandwidth Management & Optimization. Experts in the field say the primary difference between the Ka-band and Ku-band has more to do withÂ spot beam size than frequency band. Satellite Internet connectivity via C, Ku and Ka frequency bands. Get Satbeams on your tablet or smartphone. A smaller dish size and a Ku band system's freedom from terrestrial operations simplifies finding a suitable dish site.
Four months later, theâ¦, A question we sometimes get at BusinessCom is why our prices are higher thanâ¦, So many choices. Mobile broadband wireless access (IEEE 802.20), Multichannel Multipoint Distribution Service, https://en.wikipedia.org/w/index.php?title=Ku_band&oldid=957855253, Articles with disproportional geographic scope from July 2014, Articles needing additional references from July 2014, All articles needing additional references, Articles with multiple maintenance issues, Wikipedia articles needing page number citations from July 2016, Creative Commons Attribution-ShareAlike License, This page was last edited on 20 May 2020, at 20:58. Each spot beam generally covers at most a few thousand square kilometers.
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While Ku-band satellite service is available all over the world, Ka-band service is relatively sparse.
This problem can be solved by using an appropriate link budget when designing the wireless communication link. There are more than 22 FSS Ku band satellites orbiting over North America, each carrying 12 to 48 transponders, 20 to 120 watts per transponder, and requiring a 0.8-m to 1.5-m antenna for clear reception. The band is split by the International Telecommunication Union (ITU) into multiple segments that vary by geographical region. Satellite Bands and Frequencies Includes:
These different frequency bands have separate uplink (Tx) and downlink (Rx) frequencies, require different RF components (LNB and BUC) and are suited to different applications.
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