Is a tuner required? Well, the answer from the manufacturer is no, one does not need a tuner. And, that is probably true!! I just use a tuner with everything - thinking that is the way to do it:)
I just buy buy buy, put all the stuff together as if I knew what I was doing, and hope it works:)
. So far, all does indeed work.
Here is what I did/have done. I have 5 of those end fed things things. So easy and convenient!!
I know enough about antennas that "height is good". Also, I know that installing a sloper configuration is both easy and it works!!. So, for each end fed antenna that I have/use, I bought one of those MFJ telescoping masts (not the flimsy ones, the ones more sturdy with thicker walls). At antenna installation, I then hoisted up the mast section by section (do not rely on the sections to maintain there grip just from hand tightening - the wind motion will work the sections lose and then you get one hell of a big collapse of section after section collapsing on the other - use instead hose clamps at each section "join point"). At the completion of each section hoisted, I tied off the other end to a convenient tree limb form my "sloper". I then trudged back into the shack (my den actually - but I need to use proper jargon to maintain good "ham" status) and wrote down SWR/frequency/"how close to resonance" that section created. I did that using the Rig Expert antenna analyzer. Such a tool is well worth the expense. I then trudged back down into the lower 40 where the sloper is, unhooked the end that was tied to a tree, went back to the telescoping mast and raised it yet ANOTHER section (and clamped it off). Went back to the tree to secure the sloper end, trudged back to the shack to do the measurement associated with that next section. Then I repeated the whole process until measurements were available for each section of the telescoping mast.
The bottom line is I found that a nice low SWR of 1.3 indeed materialized like the manufacturer stated without the aid of a tuner. That SWR appeared just after the fifth section of the telescoping mast was up and secured - along with the other end tied to my tree of course. Therefore, it appears that one can do the deed without an antenna tuner. But, because I buy buy buy and use everything I can get my hands on, I nevertheless have the thing running through my tuner anyway.
The good thing about these forums is that more folks will chime in with their ideas which either work just as well or even better. I always welcome other/new ideas (but mine of course are the best - heh heh heh)
Jerry (I forgot the "Y" on my first response to you)