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DishPro LNBFs are a new technology that is only supported in the newest
receivers from Dish Network (Models 301, 501, 508, and 721). DishPro LNBFs and
switches allow for longer runs up to 200 feet from receivers to the dish.
DishPro installations are easier as there are fewer cables to run from the dish
to the switch(es) for more than 2 receivers as well as simpler installations if
more than 4 satellite feeds are needed (especially important now that 721s and
921s need 2 satellite feeds per receiver).
Quick lesson: all DBS providers have up to 32 frequencies to use per orbital
slot. The Frequencies are opposite polarities either even or odd. Legacy LNBFs
and switches can only transmit one polarity at a time down the feed cable to
your receiver. Legacy switches and LNBFs use a voltage signal from your receiver
to change the polarity of the LNBF it is connected to, 13 volts is odd, 18 volts
is even. Since voltage will drop as the length of the cable gets longer, at some
point the attenuation of the cable will drop the voltage from the receiver below
18 volts so that the LNBF can't switch to the even polarity even though the
signal from the receiver is 18 volts the LNBF is only able to use the 13 volt or
odd polarity.
DishPro is different as it will stack or transmit both even and odd
signals down the same wire, by shifting the frequencies up so both polarities
can travel the same feed to the receiver or switch. Since this is the case the
LNBF doesn't need the receiver voltage to switch back and forth. A switch is
necessary to be able to connect one stacked 119° feed and one stacked
110° feed to each receiver. The only way a legacy receiver will work with this
arrangement of LNBFs and Dish Pro switches is with a DishPro adapter that can
down convert the stacked frequencies to the standard odd or even only
frequencies. Each legacy receiver has to use this adapter which must be
installed within 10 feet of the receiver.
All cabling and equipment must be rated for the following:
This applies to all cabling, in-line amplifiers, surge protectors, diplexers.
They are usually only rated for about 500 mA DC. Upper level RG6 will have to be
used - check it - some cable will not be rated for the higher frequencies!! In
other words, RG59 cabling can no longer be considered adequate.
Equipment compatibility
Advantages
Disadvantages
Thanks to John Lodge.
The STARZ! DD schedule previously found here is at
http://starzsuperpak.com/se/starz/dolby.html.
The STARZ! DD schedule previously found here is at
http://starzsuperpak.com/se/starz/dolby.html.