Topband: Fresnel Zone

[Ray Higgins]

I have two questions about fresnel zone. 

I just purchased 22.5/ac near the ocean near Machiasport, ME. This is in the Northeast corner of Maine about 30 miles south of Eastport and a Lubec. This is going to be my personal Remote Contest station! I plan to be contesting from this new qth starting in 2020 but will be QRV by mid 2019 for testing.
This qth is anywhere between 1-3 miles from the ocean or the bay, it sits on a high plateau 150’ asl thats slopes in all directions to saltwater (peninsula) except N/NW. The property has a saltwater river and marsh that runs the perimeter from south to north favoring the NE direction,  the marsh is only 50-100' wide and 1500-2000’ away from the property. The land has a gradual slope to the marsh. 

My questions:

1.) Is the saltwater river bed/marsh wide enough to be an effective field in the Fresnal Zone?
2.) What is the wavelengths needed to be within the Fresnal zone of a river/marsh compared to an ocean?

In this photo album (last pic) I have outlined the river saltwater marsh and property boundry from a google earth shot. https://photos.app.goo.gl/ui79t2jFo95b29et6

I’m only concerned about 80 and 160m in the Fresnal Zone. 

Any input would be welcomed. 

Thanks,

Ray W2RE
 

Sent from my iPhone