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Date: 6/4/07
Document number: 236
Rev. 002 Organization: S&M
A11XLV USER MANUAL
Description
The A11XLV is a RF (L band) amplifier intended to operate with GPS frequencies
and signal levels. It has one input RF port and one output RF port. Using front
panel buttons or an RS232 serial port, the gain can be adjusted in 1dB steps over
the operating range of the device.
Features
The A11XLV contains standard features but many described are not standard and
require the addition of optional circuitry; these may not be installed and/or
applicable to your device.
Adjustable gain
The amplifier is capable of adjustable gain from +40dB to -15dB. It can provide
less than +40dB total gain but not more.
RF Filtering
There are three RF filtering options:
L1/L2 filtering
With L1L2 filtering the gain provided will be in the frequency pass bands of
L1, 1575.42 MHz and L2, 1227.60 MHz.
L1 filtering
With L1filtering the gain provided will be in the pass band only i.e. 1575.42
MHz.
No RF filtering
With no RF filtering the gain will be approximately the same for all
frequencies across the L band (~ 1-2 GHZ see data sheet for response
performance).
Antenna/RF Line DC voltage
The A11XLV is capable of providing a fixed DC voltage out each RF port to power
other devices in the RF signal chain. The unit can be externally powered by
110VAC, 220VAC 240VAC or from a DC source a few volts higher than the
desired antenna/line voltage e.g. if you want 5 volts out then you will need to put in
