On Sep 1, 8:44 am, msg wrote:
Radium wrote:

Sorry, I meant to ask whether 3,438 GHz is the highest radio frequency
used to receive audio signals from outer space.

I thought perhaps the O.P. was from Europe or the U.K. and that the
comma in the above numeric was a substitution for a decimal point, but
alas the posting IP is from So. Cal. ....

Regards,

Michael

Hello Off-Topic "Radium-Lite" Cross-Posters,

Since "Radium" Posted this Question to several Newsgroups
and the Topic is a Non-Shortwave Radio Question that is being
Cross-Posted to the Rec.Radio.Shortwave Newsgroup :

Let me 'morph' this Question so that it is something related
to Shortwave Radio.

"What is the Highest Radio Frequency used for Shortwave {High
Frequency) Radio ?

i want to know -cause- i have been 'radiumized' ~ RHF