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 ?
