Hello All !
Always good to have a discussion going on !
About:
"the imax is designed to work without radials"...
I have a different point of view:
It is of no intrest what matching device you come up with the current at the bottum remains the same.
Now we can see the imax is closed circuit to the earth and will use the mast and coax as its "counterpoise".
One could see it otherwise...If it really was happing that you could make a matching unit wich would "forgive" the lack of radials.... why isnt it used by broadcasting/military etc?
There would be no need for radials anymore. What can be used for counterpoise on a near 3/4 wave also goes for 1/4 wave
There for i think the first radials do help on the imax as it has a current belly at the bottum.
wich is different compared to a halve wave.
Guess it is important what your expetation is, if your looking for S-units thats not going to be the case.
The "word" in the antenna world is that with eleveted radials 4 is sufficient.
And yes the impedance variees with the amount of radials but this could also be said when speaking of changing height.. u see my point.
For me aswell... if i am wrong please do explain as were all here to learn i recon.
Kind regards !
Henry