Introduction - RM Italy BLA600 User Manual

Introduction

The RM Italy BLA600 is a fully automatic HF & 6m 500W solid state
linear amplifier suitable for seamless integration with all modern trans-
ceivers. The BLA600 utilises the rugged NXP / Freescale
MRF6VP5600H 50V device for high power and high reliability operation.
It is suitable for the diverse array of modern modulation modes. The
BLA600 is fully automatic, with instant band changes and features a fast,
reliable and silent PIN diode RTX switching, making it ideal also for CW
QSK operation. The BLA600 has 3 antenna outputs easily configurable
on a per band basis as per the user requirement. The RF deck is supplied
by a heavy duty linear power supply, with 115/230 and 240 volt AC input
options, but utilises an efficient active bridge rectifier and high grade fil-
ter capacitors to provide the amplifier with a very low noise and robust
50V DC supply. The RF deck has a large heat sink and copper heat
spreader which provides a very efficient cooling system with separate
fans for the RF deck and LPF board / power supply for high duty cycle
operation. Internally all modules are mounted in a very robust and well
screened enclosure. The BLA600 features Dual MCU control and an ex-
tensive array of protection circuits which look after the amplifier with
rapid reaction time, VSWR, I/P Power, I/P Frequency, 3 Temperature sen-
sors, (Transistor / Heat sink and PSU), Drain voltage / Drain current, HV
PIN supply, are all continuously monitored.
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