Laplace Instruments Ltd User guide RF Power amplifier
Page 8
2 Operating Instructions
2.1 General
Operating the amplifier is very simple. Connect the input to a signal generator and the output
to a load (e.g. antenna or cell). The signal generator may provide a signal of constant
frequency or a frequency swept signal, with or without AM/FM.
Turn on the main power using the power switch on the rear panel.
If a fuse blows, it may be easily replaced. The holder can be found on the back panel. Always
check the reason why a fuse has blown.
! The design concept of LAPLACE RF-amplifiers is
such that the output may be terminated with any
load impedance (any SWR). Output power rating is
relative to OdBm (1mW). Higher input levels and
transients with high voltage peaks can damage the
amplifier. However, short circuit or open circuit will
cause overheating and failure of this amplifier.
Do not feed more than 109dBµV@50ohm = 2dBm
into amplifier input.
Also, connecting input to output or accidentally
changing input and output by mistake will damage
the amplifier.
2.2 Buttons, Switches and Indicators
2.2.1 Power Switch
The power switch turns on the main power of the unit. An indicator on the front panel
indicates the power condition of the amplifier.
2.2.2 Standby
Putting the amplifier into stand-by mode can be accomplished in three ways:
1. Push the stand-by button on the front panel. The built-in lamp is on if the unit is in
stand- by condition.
2. Connect a remote control cable to the socket marked ‘CELL on the front panel Closing
the connection between pins 1 and 2 puts the RF1100 in to standby mode.
