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LBA2030 L BAND AMPLIFIER / LNB POWER INSERTER

The LBA2030 is an L band amplifier that is designed to amplify

and level the L band range of 950 to 2250 MHz that is used in

Direct Broadcast Satellite reception applications. The full

coverage allows use with installations incorporating 'stacked'

type LNBs - one polarity output from 950 to 1450 MHz and the

other polarity output over a higher 500 MHz segment such as

1550 to 2050 MHz. or 1650 – 2150 MHz.

The LBA2030 has a built in LNB power inserter that will supply

18 VDC to the LNB input connector for powering the LNB. LNB

power is not passed through from the receiver (either output).

The LBA2030 provides two output ports, one where each

transponder is leveled to approximately -20 dBm and one where

each transponder is leveled to -30 dBm. These levels are

provided when the input contains a full set of 32 transponders. If

there are fewer transponders present, the output of an individual

transponder will be somewhat higher but the output will provide

the same total power when all transponders in the input range

are summed.

LBA2030 FEATURES

is a registered trademark of R.L. Drake LLC

The LBA2030 requires an input level of approximately -50

dBm (each of 32 transponders) in order to AGC the outputs to

the -20 dBm and -30 dBm levels. Input levels below -50 dBm

will cause the output levels to drop by a corresponding

amount.

The -20 dBm output provides plenty of signal level for

situations where this output will be split through several

layers of passive splitters to feed multiple receivers.

The -30 dBm output provides the ideal level for connection to the

Drake LBS2250 ten output switch. The LBS2250 has a 5 dB level

drop from input to each transcoder output, providing a healthy -

35 dBm to each transcoder or receiver.

The LBA 2030 provides a gentle slope compensation to compen-

sate for increased coaxial cable losses in the system at higher

frequencies. The rated output levels are specified for the high

end of the frequency range and drop by 4 to 5 dB at 950 MHz.

is a trademark of R.L. Drake LLC

P/N: 3852489A-09-2007

Printed in U.S.A.