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PA 100M : 50-70W RF AMPLIFIER:
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PA 100M TOP COVER
REMOVED:
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Project Bases:
Hundreds of QRP
radio users are looking for a little boost to their 1 or 5 watt
radios. We decided to make one such amplifier too.
PA-100M
is a 50-70W IRF510 RF amplifier. Important thing is, its not just an
amp module but a complete amp with interesting features such as:
1.
4 X IRF510 as power amp with a driver IRF510
2.
Built-in dual channel SWR meter with PIC18F4550 which measures
FWD/REF/SWR of the output stage and also measures INPUT forward power
to the amplifier. A free PC software by Tony/I2TZK
for bridge parameter config.
3.
PA-100M operates on any voltage range from 15V to 36V with 24-28
thought to be ideal. It may be powered from 12V too, with small mod.
4.
This amp is supplied in a metal case with heavy aluminum heat
sink.
PA-100M comprises
Four modules:
A.
PA UNIT (4XIRF510 + One IRF510 Driver)
B.
LPF Board (5 Band LPF)
C.
Back Panel Board (TX/RX Relays + SWR Bridge)
D.
CPU Board using PIC18F4550 and a 4X20 LCD
PA-100M is available
fully assembled and tested as a standard model. However, kits may be
ordered by experienced kit builders.
Each of the 4 boards
detailed here, may be purchased for your own project
development.
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