[Swprograms] (ot) Fw: [roadgeek] Distant radio stations

["Richard Cuff" <rdcuff@xxxxxxxxxxxxx>]

We were yakking over in a "road geek" e-list regarding FM tropo / E-skip.

 

John Mayson (who had a scanner article in MT a few months back) was wondering about salt water's affect on FM.

 

You can see my quote below...I know salt water (and fresh water) greatly aid groundwave propagation for mediumwave and longwave signals...do they do anything for VHF and UHF frequencies?

 

Richard Cuff / Allentown, PA  USA

 

----- Original Message -----

From: Mayson, John

To: roadgeek@xxxxxxxxxxxxxxx

Sent: Tuesday, July 20, 2004 1:04 PM

Subject: Re: [roadgeek] Distant radio stations

> I don't think ground conductivity plays that important a role on FM or above -- since FM transmission is much more of a "line of sight" phenomenon.  That is one reason water helps FM -- because there are no changes in elevation.

I thought at higher frequencies the salt water acted almost like a
waveguide allowing signals to travel great distances.

I used to be a skip/ducting/DX fanatic, but I haven't paid much
attention to this for 8 to 10 years now, so I've forgotten a lot of
the geeky aspects of it.

--
John Mayson     jmayson@xxxxxxxxx
Austin, Texas, USA


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