Learn what is call KU,C BAND ,VHF,UHF BAND

satellite TV Broadcast Frequency
Bands -
L-Band,
C-Band,
Ka-Band,
Ku-Band
VHF Band
VHF-band is the frequency
spectrum between 30 and 300
MHZ. It covers the broadcast
television channels 2 (54 MHz)
to 13 (216 MHz) and cable TV
channels 2 (54 MHz) to 36 (300
MHz)
UHF Band
The UHF-band for television is
the frequency spectrum between
300 to 1000 MHz. UHF covers
over the air channels 14
(470MHz) to 69 (806 MHz) and
analog cable TV channels 37(300
MHz) to 158 (1002 MHz). Digital
Cable TV channels do not follow
the standard analog channel
allocation.
B-Band
The B band is an uncommon
frequency allocation term for the
US market. B-band is a term
used by the European Union,
NATO and the US ECM for the
frequency range from 250 to 500
MHz. The US FCC frequency
allocation for this range is VHF
(30 to 300 MHZ) and UHF (300
to 1000 MHz). B-band crosses
over with part of the VHF and
UHF bands.
DIRECTV uses two 500 MHZ
wide bands of spectrum as an
intermediate frequency (IF) to
transfer Ka band signals from
the Dish/LNB's to their receivers.
They call these bands the A-
band (1650-2150 MHz) and B-
band (250-750 MHz). DIRECTV
use B-band converters for
reception of HDTV programming.
More information on DIRECTV B-
band Converters.
L-Band
L Band is the frequency range by
satellite equipment to transfer a
satellite signal from the LNB on
the dish to the receivers. The
official frequency range for L-
band is 1 to 2 GHz. Standard
satellite LNBS use 950 to 1450
MHz as an intermittent
frequency. Dish Network uses a
wider bandwidth of 950 to 2250
MHz for their Dish Pro Plus
LNB's
C-Band
C band satellite systems use a 6
to 12 foot dish for reception of
television and data
transmissions. C-band covers
from 3.7 to 8 GHz, however the
frequency range for satellite
television is from 3.7 to 4.2 GHz.
Used mostly for commercial
satellite television transmissions,
C-band is becoming less of a
residential option.
Ku-Band
Ku band is the frequency range
from 12 to 18 GHz. When
discussing Ku-band satellite TV
we only consider, the range
between 11.7 and 12.7 GHz. 11.7
to 12.2 GHz is called the FSS-
band and the 12.2 to 12.7 GHz
range is called DBS band (see
below)
K-Band
K band is the frequency range
from 18 to 27 GHz.
Ka-Band
Ka-band is the newest satellite
broadcast band. Ranging from
27 GHz to 40 GHz. Ka-band is
used by Wildblue and DIRECTV.
Wildblue uses Ka-band for
delivering of satellite broadband
and DIRECTV uses Ka-band to
supplement their existing Ku
band channel capacity. DIRECTV
plans to use two sections of Ka
bandwidth. 18.3 - 18.8 GHZ and
another 500 MHz band at 19.7 to
20.2. Wildblue uses 19.7 to 20.2
GHz for the signal sent to the
Wildblue customers dish (User
Downlink) and 29.5 to 30.0 GHz
for sending signal out to the
satellite from the users dish
(Users Uplink). Go here for more
information on Wildblue Satellite
Internet frequency allocations.
Sub Bands
Fixed Satellite Service- FSS, 11.7
- 12.2 GHz
Part of the Ku-band spectrum
used for Fixed Satellite Service.
Virtually every dish in the 1
meter to 1.7 meter size is used
for FSS band reception. FSS
satellites can be spaced 2
degrees apart, which limits their
maximum power output to avoid
adjacent satellite interference.
Today the FSS band is used by
Hughesnet ,and Starband for
satellite internet. Free-To-Air
(FTA) satellite systems also use
the FSS band. The FSS band is
also used for transmitting
television shows, back haul feeds
for remote news broadcast and
many more companies for
various data/video
transmissions.
Direct Broadcast Satellite - DBS
12.2 - 12.7 GHz
The Broadcast Satellite sub-band
of the Ku-band is commonly
called the DBS band. The D in
DBS is sometimes called Digital,
and others will say it means
Direct. Some consider this band
to be called the BSS band for
Business Satellite Service. That
is not correct. BSS is a term
used to describe a type of
service and not the actually band
of frequencies used to deliver
that service. We will call this the
DBS Band because we like DBS,
no other reason.
The DBS band is reserved for
high powered satellites intended
for the delivery of digital
television. DIRECTV and DISH
Network are DBS Satellite
system providers. DBS Satellites
are spaced 9 degrees apart. The
wide spacing of DBS satellites
allow for very high powered
transmissions which results in
the ability to use a small 18"
dish.