Monday, February 24, 2014

Syvyys- ja maataso-ongelmia - Depth & Counterpoise Problems



Naytto vaittaa, etta "kaiku" on systeemissa
Display argues that there is a transducer in the system




Mutta ei vaan sitten nayta syvyytta. Naissa ojissa ajellessa syvyysnaytto on valttamaton. Onnekseni Garminin tekninentuki on uskomattoman nopea (Melissa).
But doesn't then show the depth.  When you are driving in these "ditches" you have to know the depth of the water.  Luckily Garmin's technical support is unbelievably fast and Melissa is the person sending me the instructions on how to solve the problem.



Toivoin, etta teraskaiteisiin kiinnitetty anteninjalka saisi riittavan maatason aikaan mutta SWR mittari pomppasi tappiin. Ei auta muu kuin rakentaa maataso. Ensiksi liimaan ohutta kuparilevya laivan pohjaan vasilinjan alapuolelle. Joissain kirjoitemissa vaittavat, etta foliota tarvittaisiin 100 neliojalkaa. Ei minun laivani koko vesilinjan alapuolinen pohja taitaisi riittaa - eika rahat ainakaan.
I hoped that my antenna when fastened around the steel rails would have a good counterpoise but SWR gauge went crazy.  Nothing else helps but to build a counterpoise.  First I glued a very thin copper foil on the bottom of the boat under the water line (inside).  Some instructions say that about 100 sq ft is needed.  I think that the whole bottom of my boat is under 100 sq ft and for sure I don't have money for that.

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