6
WARNING! Do not turn the amplifier on without having connected the ANTENNA or
properly rated DUMMY LOAD! A hazardous HF voltage may build up on the antenna
connector after turning the amplifier on with no antenna or dummy load connected!
WARNING! Before opening the upper lid of the amplifier make sure that power
supply has been disconnected. Take out power cord from the outlet!
CAUTION! The amplifier must be installed in such a way that free flow of hot air from
inside is allowed. The amplifier must not be installed in a constrained surrounding (i.e.
tight shelves etc.)
CAUTION! The amplifier must be properly grounded during operation
.
CAUTION! During operation the amplifier must be installed in such a way that the
rear panel will stay accessible.
CAUTION! The amplifier is an A category product. In a household it can influence
other electric appliances. In such cases the user is to take proper actions to mitigate this
disturbance.
CAUTION! Read this manual carefully. Follow all of instructions during installation
and operation to avoid damage to the amplifier not covered by manufacturer’s
warranty! Do not attempt to perform any change of hardware or software!
3. GENERAL DESCRIPTION
3.1. HF part
OM1006 power amplifier was designed to achieve the RF performance of the MOSFET,
when applied to the 50 – 54 MHz frequency band. Design was tuned for performance at
1000W CW output, 50VDC. It consists of „no tune“ distributed element matching circuits
designed to be as small as possible.
For operating it is important that adequate heat sinking was provided for the design.