Hi All
Email and other digital communications plagued with various
contamination, satellite systems although
 using  FDM and TDM modulation the baseband data is primarily digital.
It is just a matter of time before the whole DIGITAL system grinds all
of modern communications to a halt.
The remedy is back to analogue and the man with a backpack tx/rx using
hand sent CW will win in the end.
Although digital systems do have advantages of flexibility over
analogue, their weakness is also  digital destruction. Analogue is not a
structured system and therefore less vunerable to tampering.
History does repeat it self and the wheel often turns full circle. You
achieve something on one hand and lose it on the other. Like the
vunerability of solid state devices, a lightening strike and all is
lost.
Transistors and chip devices zapped.
The valve of yesteryears will live on and is virtually imune to such
destruction.
Digital systems becomming more  sophisticated but so are the viruses to
neutralize the advances and in the end the virus could win. What sort of
progess is this ??
G3KEV