I would rather use a fan dipole, no balun.? I use a antenna analyzer and have a light tuner anyway.
I am suspicious of all the QRP baluns for end fed.? Anyone is likely to bump the power which leads
to saturation and harmonic generation.
I know if you are really doing QRP portable, you want quick and easy, and it can be a problem in
a lot of places tying a wire to "anything green".? Sometimes they won't even let you put a peg into
the grass.
I have seen a lot of 100 watt radios that were used with compromised antennas and the people
who do it say: "oh the radio will protect itself" but they are often down to 75 to 80 watts so there
is wear and tear from regularly playing into even a marginal SWR.
