Tech Night – May 2018

Its been a while since our last posting so a quick update on the our Club members builds on their Crossed Yagis.

DSC_0743It was the Riverland Radio Clubs monthly Tech Night tonight which was scheduled for a bring in whatever you want help with night. So Ron VK5MRE and Rob VK5TRM both finished off their take on the build design of Danny VK5DW.

Ivan VK5HS bought in the ‘shorting’ bars for Ron and Rob to complete the Gamma Matches while both Ivan and Danny bought in their antenna analysers to help the lads give the yagis and tune.

20180326_211630Both antennas tuned up quite well and of course not solely satisfied with just an analyser saying the antenna is good to go, a few on air tests just had to be done to prove the point. So out in the car park of the SES Headquarters at Berri there we were trying to throw a signal into a couple repeaters around the area.

After the field tests which included trials of front to back and polarity attenuation, which all seemed quite good, we retired back to the comfort of inside. By now the Sonde WX balloon had been launched from Adelaide, so it was time to get out with Rob’s VK5TRM antenna configured in the 5 element 70cm format to see if the Sonde could be heard.

Adel_BerriYep sure enough it was there, given we are about 200kms away and on the wrong side of the Mt Lofty Ranges we were getting the Sonde from the SES car park with a hand held antenna with the Sonde at only about 4500m elevation. Yep Rob seemed happy with that.

Once again we returned inside for a bit of a chat before retiring for the evening.

Thanks for reading,

Danny VK5DW

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