C120 C-band LNBs ???

p · 21-02-2008

Is there such a thing available? If so where??

**rolfw** · 21-02-2008

Well they sell C-band LNB at satellitesuperstore.com, but what types I'm not sure.

**Tsiklon** · 21-02-2008

C120 feedhorns are designed for Ku-band only, so there is no such thing as a C120 C-band LNB.

p · 21-02-2008

Originally Posted by Tsiklon

C120 feedhorns are designed for Ku-band only, so there is no such thing as a C120 C-band LNB.

Thats what i expected, thanks for confirming,

i wanna play with c-band too

gregorian dish!

**aba** · 22-02-2008

c band lnbs work on the similar prinsible as a c120
you get a c band lnb it comes without a feed horn
a c 120 feed horn is about 2 / 3 inches across
but a feed horn for a c band lnb is about 7 / 8 inches across
if you go to a search engine and type in corotor you should get a picture of one

**Orthoclipse** · 22-02-2008

Originally Posted by aba

c band lnbs work on the same prinsible as a c120
you get a c band lnb it comes without a feed horn
a c 120 feed horn is about 2 / 3 inches across
but a feed horn for a c band lnb is about 7 / 8 inches across
if you go to a search engine and type in corotor you should get a picture of one

Not quite the same. A C120 Ku-band LNB has two probes for H and V with voltage switching.

A WR229 C-band LNB has just one probe and requires a polarotor or corotor to receive H and V, or R and L. A WR75 Ku-band LNB is equivalent.

**aba** · 22-02-2008

Not quite the same. A C120 Ku-band LNB has two probes for H and V with voltage switching.
no the c120 feed horn dont have probes in it the lnb douse
originaly the c120 feed horn was made for prime focus dishes and single band lnbs then duel band lnbs then triple banb lnbs none of these lnbs worked with out a magnetical or macanical polarizer as they all only had a single probe in them to pick the signal it was the polarizer that swaped from horizontal and vertical sam as a c band lnb
no feed horn will swap signal from one polarity to the other
all the feed horn doues is feed the signal in to the mouth of the lnb
so yes i douse work on the same prinsable
except the original ku band need a polarizer same as a c band lnb douse
more moddern lnbs mainly made for off sett dishes i.e. universal exsetera dont need the polarizers any more
is this a little more clearer for you

ive been fitting satellite dishes since 1980 befor any one had even hear or rupert murdock
and i am sill useing a corrotor with c band and ku band lnb on a 7 ft 6 inch prim focus dish

please pardon spelling