Linear Power Amplifier
The term "power amplifier"
is a relative term with respect to
the amount of power delivered to the
load and/or sourced by the supply
circuit. In general a power amplifier
is designated as the last amplifier
in a transmission chain (the output
stage) and is the amplifier stage
that typically requires most attention
to power efficiency. Efficiency considerations
lead to various classes of power amplifier
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| Key Specifications/Special
Features:
- Frequency range: MHz (standard)
- Operating mode: FM, SSB, CW
- RF out: 100W / 200W / 300W
- DC power: 13.8V, 10A max.
- Dimensions (W x H x D): 115 mm
x 50 mm x 182 mm
- Weight: Approx. 1.0 kg
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SWR-power Meter
The SWR meter or VSWR (voltage standing
wave ratio) meter measures the standing
wave ratio in a transmission line.
This is an item of radio equipment
used to check the quality of the match
between the antenna and the transmission
line.
The VSWR meter should be connected
in the line as close as possible to
the antenna. This is because all practical
transmission lines have a certain
amount of loss, causing the reflected
power to be attenuated as it travels
back along the cable, and producing
an artificially low VSWR reading on
the meter. If the meter is installed
close to the antenna, then this problem
is minimized.
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| Key Specifications/Special
Features:
- Frequency Range: 140-525 Mhz.
- Power Range 0-200 Watts.
- For/Ref Power ratio 5:1.
- Forward power 20W,200W.
- Ref Power 2W,20W,100W.
- Power Accuracy +- 5%.
- Lighted meter/W Cord.
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