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Antentop is FREE e-magazine devoted to Antennas and Amateur Radio an
Special page devoted to
VHF ATU
Custom Search
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ANTENTOP- 01- 2017 # 021
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Several Universal ATUs for the Whole Amateur HF Band
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Figure 9 The universal ATU with 2-pole 3-position
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The C part of L1 should have up to 15 turns for more
effective ATU work on 1.9 and 3.5 MHz.
To match antenna in most effective way it needs vary the tap from
L1 to C1. This tap should be tapped from 5 to 10 turns from ground
as it shown in Figure 10. |
Any of the ATUs do good matching job. However, the
ATU selected for operation on the ham radio station will depend
on the matching requirement for the Band of operation chosen and
the antenna used. The most universal ATU is shown in Figure
10.
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Figure 10 Universal ATU |
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Last Updated:
January 4, 2020 14:32
