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Hello Luis,
one way to change the range without opening meter is to use two 4/1 radio transformers:
- first transformer high side to the TX, and low side to one and of the meter
- second transformer low side to the other end of the meter and high side to the antenna
Drawback: the transformers will introduce some additional loss
----- -----
}| Meter |{
}| +--+ |{
TX }| ----| |---- |{ Antenna
}|{ +--+ }|{
----- ------------ -----
73, Rik ON7YD - OR7T
PS: drawing needs a monospace font (eg. Courier New)
Hi xyF
Yesterday I got a nice gift from a local friend, Pascual EA5JF :-)
Unfortunately the current range under 1A looks unusable
Still not opened to have a look. Seems to use a thermocouple. Is there any chance to make it
more sensible and usable for <1A currents ?
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