"Cecil Moore" wrote in message
et...
Peter wrote:
And as far as I know there is no observations of radio signals changing
frequency due to distance by even the slightest degree.

I think you will find many examples from radio astronomy
where radio signals are red-shifted just like light.
--
73, Cecil http://www.w5dxp.com

I understand red-shift in terms of astronomy, but you can never be sure of
all the effect in that situation such as acceleration and gravity. I suggest
that there is no observations of radio signals changing frequency due to
distance under lab conditions, which I still believe would be a relatively
easy test.
--
Peter VK6YSF

http://members.optushome.com.au/vk6ysf/vk6ysf/main.htm