S Band
S band is a frequency range from approximately 2 to 4 GHz.
S band is used for Digital Audio Radio Satellite (DARS) satellite radio systems such as Sirius XM Satellite Radio. Sirius XM uses frequencies between 2,320.00 and 2,332.50 MHz, and also between 2,332.50 and 2,345.00 MHz.
S band is also used by many weather, communications, and intelligence satellites. Most of these satellites transmit using CW, usually with sidebands. PSK with a sub-carrier is a less popular option.
A portion of the S band from 2.4 to 2.4835 Ghz is used by 802.11b/g/n wireless network devices and some cordless telephones.
Bluetooth operates on a portion of the S band from 2.402 GHz to 2.480 GHz.
The S band will also be used for Mobile Satellite Service. The FCC has approved frequencies from 2.0 to 2.2 Ghz for use in MSS and the European Commission has approved frequences from 1.98 to 2.01 GHz and from 2.17 to 2.2 GHz for MSS.
Many WiMAX implementations utilize a portion of S band spectrum, although the ranges differ widely between countries.
|
|
- C Band
C Band is the original frequency allocation for communications satellites. C-Band uses 3.7-4.2GHz for downlink and 5.925-6.425Ghz for uplink. The lower frequencies that C Band uses perform better under adverse weather conditions than the Ku band or Ka band frequencies. C Band Variants Slight C Band frequency variations are approved for use in various parts [...]...
- L band
L band is a fequency range between 390MHz and 1.55GHz which is used for satellite communications and for terrestrial communications between satellite equipment. The high frequencies utilized by C band, Ku band, and Ka band would suffer from high signal loss when transported over a copper coax cable such as an Intra-Facility Link. An LNB [...]...
- CB (Citizens Band) Radio
CB (Citizens Band) Radio is an unlicensed service. CB Radio consists of 40 HF channels on AM and SSB. Channel 9 is designated for emergencies and assistance. The maximum allowable power for a CB radio is 5 watts. Repeaters are not allowed on CB radio. CB Radio Usage CB Radio is mainly utilized by truck [...]...
- Ka Band
The Ka band uplink uses frequencies between 27.5GHz and 31Ghz and the downlink uses frequencies between 18.3 and 18.8Ghz and between 19.7 and 20.2Ghz. The Ka band is branch of the K band from the electromagnetic spectrum. The term “Ka-band” is from Kurz-above, which originates from the German phrase “kurz” implying short. Ka band dishes [...]...
- Ku Band
The Ku band (Kurtz-under band) is primarily used for satellite communications, particularly for editing and broadcasting satellite television. This band is split into multiple segments broken down into geographical regions, as the ITU (International Telecommunication Union) determines. The Ku band is a portion of the electromagnetic spectrum in the microwave range of frequencies ranging from [...]...