Dear Enoon,
first to your questions:
1) What is the resonance frequency of our inner organs? I can't really make sense of this idea. How do organs resonate at all and what is their frequency and how do you explain this?
First of all every physical body and/or shape which is electrically conductive works as an antenna for elektromagnetic signals. Every transversal EM-frequency has a defined wavelength(WL), because these kind of waves are trevelling at the speed of light. (Formula: speed of light devided by frequency)
The frequecies to which the organ relates to, is defined by it´s physical size.
Regarding cellphones and microwave ovens here some examples:
800MHz (cellphone) has a WL of about 37.47 cm
1.9GHz (cellphone) ~ 15.77cm
2.4GHz (Bluetooth, UMTS, WLan) ~ 12.49cm
2.55GHz (microwave oven) = 11.76cm
To make it bit more complicated technical antennas are tuned not to the wavelength itself, but to the 1/2, 1/4 or 1/8 (and so on) of it. To explain the whys and hows here would explode the given frame.
The size of our organs simply fit perfect in that range respective the WL/2 or WL/4.
That´s simply electro physics.
2) you state that RF-radiation interferes with with nerve signals somehow or at least that there is an effect. Is this really proven?
Yes it is. I don´t have the studies at hand but they show artifical signals mixed with body signals.
3) The experiment with the plants IMO would have to be done blind, i.e. the person administering the water would not be allowed to know which water was microwaved and which wasn't, so as not to let the bias of the administrator sort of get known by the plant. As far as I understand it plants can pick up on intentions of humans to a certain degree. If we were out to prove that microwaved water killed plants this might have an effect on the plant growth. Other factors might also be involved. So it would be best if it was not known by the person giving the water.
Right.
4) can you elaborate on how you measured your cellphone frequency from the water? did you do control measurements without the water in the cage etc? what kind of machinery did you use to measure this?
First I tested the farady cage, of course.

Within the frequency range of the amplifier was no disturbing signal present.
Then I puted my jar in it, oriented the antenna towards the water sample, closed the cage and started the measurement.
I can´t remember the specific type of measurement amplifier that was. It had a frequency range from 100MHz to 4.X GHz.
so I can see that maybe microwaves have adverse effects on cells and more complex molecules/proteins even DNA. I don't really know how severe these effects are say compared to cosmic or solar radiation that these molecules are subjected to anyway - I simply don't have the data at hand.
read some of the studies I´ve refered to earlier.
And yes I know that most scientists
believe that there is no such thing like a memory in water. Most of them try to debunk this, using the reformation of watercluster argument. But in my opinion these clusters are the wrong place to look at. I think the memory has something to do with a Bell-like field. The same thing as in our brain, just by removing or damaging a small part of the brain we do not loose certain memories. -> The storing mechanism is a nonlocal one. As long as we don´t have sensors, machines or what so ever, which are able to show us everything on a quantum level, we will not be able to come to a final conclusion here.
I did a lot of research in that area, mostly with testing devices which aren´t scientific standard. So on a hardcore scientific level that would not count, but as I mentioned in my last post Science don´t own the truth!!!
Science is always at the current level of misapprehension, more or less always trying to approach truth.
Out of my experience I can say scientific aproach is a helpful tool, but it´s not applicable for everything.
I love science but it´s only a/one tool nothing more, nothing less.
Don´t put science on a thrown, otherwise we create a new religion.
The personal experience should always weigh higher than anything what´s imposed on you. Right?!
That´s why I wrote in my first post in this thread to
check it out!
Garfield