Hello,
Yesterday I tested the EFHW antenna, according to K6ARK’s idea.
In an hour 58 qso:
80m SSB 4
40m SSB 20
30m CW 19
20m CW 3
40m CW 12.
Sorry for the video, one hand on the manipulator and the other on the smartphone.
73 de José
2 Likes
Hallo José
Now it would be interesting to connect and compare the wires without the unun.
I almost think that the KX2 does not need the unun. 
My standard setup on the KX2 is a 9.2m vertical wire and a 5.1m on the ground radial… and a W1JR balun with 3m RG 174 to the radio.
It works great from 10m - 60m … with a little more wire length would probably also do 80m… - the KX2 tuner is awesome
73 Armin
Hello Armin,
I already tried with a BNC to banana adapter and it works.
But what has worked best for me is: unum 9: 1 wire 16m and 10 of counterweight. Now I am trying to reduce the weight of the equipement, very important when the climb is hard and long.
Certainly the ATU of the kx2 is the best
73