I have no fc 40 BUT an fc1000 by yaesu,,,,

I had some spare room in it and put a 1:4 balun on the output side ….

Now with a jumper wire I can switch that balun in and can tune dipoles, loops or other things that the mobile tuner otherwise could not handle

You can not put the balun on the input side (but coiling up a few feet of the coax does help a bit) cause you have a second device (control head) on the trx side that is grounded at the trx so you can not just make a current balun on the inside like with an sgc tuner ….

Many many manufacturers build (manual) tuners with a 1:4 on the outside so I thought to try it out on a fieldday with different antennas….

If you have an autotuner (regardless what others say and regardless what manufacturer) just try it out with an external balun on the output side

If the tuner can not tune it on a band or two just make the ladderline or the antenna a few feet longer (or shorter) and make another try on all bands ….

With that setup /the tuner with balun) I can now tune on any band with a pushbutton …

That worked on fieldday with different dipoles (all ladderline fed) and on my fullsize loop at home….

I would like to hear more of different setups from others …..

What did you try with your yaesu tuner?

What length of antenna worked what lengths should be avoided?

Did you make any mods on your tuner?

What mods??

I am also thinking about changing some of the larger coils in the fc1000 …..better q > lower losses > can handle more power …. That is what I hope

I also made a small mod in the controlhead of the fc1000

I have a swr meter with led built in cause in the control head there was also some spare room

(I like mods that can fill the spare room that the manufacturer left hi hi )

What did others do with their rigs and tuners??

Greetz and 73

Dg9bfc

Sigi

Ps: on my fc901 manual tuner I also put a 1:4 in and changed the bandswitch to a unit with more contacts (warc bands) but that’s another story J