On Sat, 19 Mar 2011 07:51:45 -0500, Mike Coslo wrote:

On 3/18/2011 1:16 PM, Richard Clark wrote:

How did this slip from "near IR" to 32 GHz?

Hello Richard!

Hello Mike,

Welcome back to the Land of Odds.

The idea that "we" have a transmitter on Mars notwithstanding, Jupiter
has been transmitting RF for a long time.

Jupiter was one of my first DX goals back in the early 60s. However,
to expand upon your offering (I was wondering when anyone would
mention these sources), Earth, too, is a natural RF source (to
distinguish from the unnatural - such as stations carrying Fox Noise).

Quoting Wikipedia on Jupiter (nothing much said of the other planets
other than Earth):
"The intensity of Jovian radio emissions usually varies smoothly with
time; however, Jupiter periodically emits short and powerful bursts (S
bursts), which can outshine all other components. The total emitted
power of the DAM component is about 100 GW, while the power of all
other HOM/KOM components is about 10 GW. In comparison, the total
power of Earth's radio emissions is about 0.1 GW."

("emissions in the range 3 to 40 MHz are referred to as the decametric
radiation or DAM")

This decametric radiation would put us (returning to my quoted
question above) another several orders of magnitude beneath "near IR"
and into the "frigid IR" (a distinct irony with temperatures hovering
in the hundredths of a degree K).

73's
Richard Clark, KB7QHC