Lots of work

I repaired and painted the 8 elements of the SteppIR.
Peter PA2DXY had done the same and advides me on the right paint: (in Holland)
http://www.georgekniest.nl/Catalogus/Verf+en+onderhoud/Jachtlakken+en+antifouling/International+lakken/Perfection+2K+jachtlak/product.aspx.
De kunsthars heb ik hier besteld: https://www.marinestore.nl/p2090000646/West_System/Junior_Pack_-_Epoxyhars_105_%2B_Harder_205/product_info.html

Right after my holiday I installed the elements and SWR was better but still not stable.
Then I remembered I had bought a 33V power supply from SteppIR. With that PS the SWR is much better although after some tuning up&down the SWR is still rising above 1:2 and I have to do a recalibrate. Otherwise my PA will trip.

In my holiday the 80M inverted-L had died: broken on 2 places. Heavy storm and temperatures far below zero the same time. DX-wire gave me a small discount and has sent me a new 15,2M pole. Now it is up and with X at zero the Z=31 at 3500-3550 KHz. Nice! SWR about 1.5.
measuring 80M inverted-L

Measuring 160M inverted-L

Using the UNUN on 80M
I tried to use a UNUN 1:2 to improve the SWR but no success: the resonance frequency drifted away, at 3500 KHz the X went up! The explanation of the provider balundesigns.com: Ununs are far from linear and are still a tranformer using a ferrite core.

 

The same on my 160M inverted-L, Z is down to 26! around 1800 KHz.

So now it looks as we have to design a L-network.

My East-beverage was broken (again) by deer, so I repaired and rearranged it South. With that in place it was fairly easy to work XT2TT on 160M. Yes, there is time to work DX but the time repairing is far more…..

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