[Lowfer] spark microwave transmitter

[Ed Phillips]

W2MXW wrote:
> 
> Funny that this should come up on the Lowfer group. Good to see interest
> along these lines. I have been playing with generation of micro-,
> millimeter- and submm waves by spark and various simple detectors including
> neon lamp plasma diodes (just a common glow lamp). Loads of fun and very
> informative to see what things are opaque or lossy, what things are
> transparent, reflections, standing waves, simple wavelength measurement etc.
> Anyway, this kind of thing has been discussed quite a bit on the microwaves
> reflector but this is a first for an ostensibly LF group (not that I'm
> complaining mind you :-) Then again, I also experiment with still higher
> freqs, i.e., optical, so uwave is by comparison practically "LF"...
> The URL for the J.C. Bose site is
> http://www.tuc.nrao.edu/~demerson/bose/bose.html Very interesting read.
> That suggestion using the piezo to vary the cavity dimensions at an audio
> rate thus creating FM is brilliant, I have to go try that now!!
> 73 de Jon W2MXW

	How about sharing some of your results?  I recommend Bose to anyone who
is at all interested in the subject.  Considering that he did his work
well over a century ago it is rather humbling to read.

	Don't think that the proposed FM will work since the signals are not
coherent from spark to spark.

Ed