Topband: Salt-Water Qth!

[Chuck Hutton]

You might want to take a look at some technical reports from the BBC Engineering Department. Two in particular: RA-25 titled "Influence of Ground and Sea on MF Propagation" and 1975-32 titled "LF and MF propagation : An Approximate Formula for Estimating Sea Gain".
Both (and many more very interesting papers on Beverages, propagation, etc) are available online at http://www.bbc.co.uk/rd/search?Type=Publications
Chuck 

> From: w2re at hudsonvalleytowers.com
> Date: Wed, 1 Apr 2015 07:47:23 -0400
> To: topband at contesting.com
> Subject: Topband: Salt-Water Qth!
> 
> This is my first post to the Top-Band Reflector, so please excuse my ignorance if this topic has been discussed in the past. 
> 
> Is there any scientific data in print to prove the theory that ocean front property is better than a location inland about a mile or so on a ridge overlooking salt water for HF. I had this heated debate over the weekend with two ham friends of mine while we traveled to Maine looking at real-estate along the coast. I understand the theory that verticals literally in or on the water have a huge advantage. The debate was about how far away from the water does it become a diminishing effect. I made the claim that the Ocean-Front property would be a better location than anything inland including a location on a ridge within a mile. This heated debate went on for about 500 miles while we were driving back to NY. It was a very interesting conversation and made the long drive back much quicker! :)
> 
> Additional information about the debate:
> 
> In the State of Maine there is a setback regulation on shoreline property regarding structures including radio towers. To play it safe with the shoreline protective rules, the proposed array system would be setback minimum 500’ from the water or as far back as 2000'. At these distances on 80/160 meter will a vertical antenna system see any positive effects with additional gain from the salt water? 
> 
> What about horizontal antennas? Do they see any effects from Salt-Water?
> 
> I'm sure I can use HFTA to model the terrain, which I have done in the past with great accuracy. However, I'm not sure if it calculates Salt-Water. Maybe it does. 
> 
> We are anxious to start building in Maine ASAP. Any input would be appreciated. 
> 
> Thanks,
> 
> Ray W2RE
> W2RE.com
> 
> 
> Sent from my iPhone
> _________________
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