Wednesday, November 2, 2022

New QO-100 antenna and feed....

 Last weekend I decide to upgrade my QO-100 antenna system. My good friend SV5SKE Euripidis gave me a 1.5m diameter prime focus dish (brand new). Also PE1LWT a year before send me an POTY feed so the gear it was around and ready to be assembled. The only thing that have to carry was the waterproof of feed point and BullsEye LNB preparation. My good friend Vangelis SV5FRV make the 3D printing of POTY parts.Thanks guys...   The construction takes all Suturday long and went just fine. Few final adjustments needed and Im count on the help of my good friend SV5KJO Giorgos as an Satellite expert. With my very fast adjastments, my signal on QO-100 improves and I see signals as 59+ on downlink...









 

Here is the results on air....


 

 

Monday, September 12, 2022

New POTY ....

New POTY antenna feed 2,4 GHz for QO-100 SATELLITE. 

Also weather protection 3D printed.

Saturday, September 10, 2022

NanoVNA upgrade ...

My previous NanoVNA with SMA connectors, it travels as present to my friend Kostas SV2MAC, I decided to upgrade to SAA-2N. New toy, new calibration files with VNA_QT software.

 

Thursday, September 8, 2022

HF Yagi antenna maintenance 2

 A big thanks to SV5/SV2MAC Kostas for his excellent work on my A3S traps (cleaning and retune) New plastic covers from RayCap for traps and check with NanoVNA. Next days will reassemble the Yagi and hook it up again on tower.










 

Thursday, August 25, 2022

HF Yagi antenna maintenance....

 My HF yagi antenna (Cushcraft A3S) is down for meintenance after many years on roof. Trap covers gone by the wind and SWR readings at 10m and 15m moves higher than center frequencies. My good friend Nikos SV5KKN, helps on tower work and guywires change. During antenna disassembly a trap spacer broke. Looking on Internet I found a 3D printer file for it. Vaggelis SV5FRV offer me a quick printing. Now the traps and spare parts are ready to leave for Kalymnos where SV5/SV5MAC Kostas will clean and retune them. Thanks for Ham Spirit and help guys....!!!







Sunday, August 7, 2022