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Showing posts from April 18, 2015


on top 2m/70cm colinear 5 ele 4m dk7zb new HF 40-20-15-10 +6m  4ele combi the 5 ele is a 50Ohm design 3.04m refl. to dir3 the 4 ele is parasitic coupled to the 4band HF dipole ( 9m60 long  40-10m)  matching is perfect f/b is very good  almost too good but no results yet on 4 or 6m  propagation is absent  as before bands are closed picture taken with Nikkon D70S some dust spots internal in the camera anyone knows where and how to clean the optics of this Nikkon? it is not the objective lense  and not the 1/2 reflective mirror the dust is sharp focused and always the same spots


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