New Moxon aerial for meteor radio scatter

From: bill Watson [mailto:bill.g4eht@yahoo.co.uk]
Sent: 27 April 2017 17:31
To: Thornett Andrew (05Y) Walsall CCG
Subject:

 

HI ANDY

WE HAVE……………GOOD NEWS…….AND………BETTER NEWS. !

I HAVE TESTED THE 2 MTR MOXON…….IT IS FINE…..ABSOLUTELY NOTHING WRONG WITH IT……ITS BANG ON RESONANCE…..NO PROBLEMS. I TRIED MOUNTING IT VERTICALLY THOUGH………….NO CHANCE. !! HAVING THE POLE BETWEEN THE 2 ELEMENTS IS A……NONE STARTER. – SENDS IT WAY OFF RESONANCE, AND THE SWR GOES THROUGH THE ROOF. !

MOUNTING IT VERTICALLY WOULD MEAN USING A …NONE METALIC SUPPORT AT THE TOP SECTION…..AS I POINTED OUT. SO……I SET ABOUT MAKING YOU ANOTHER ONE ANDY. THIS ONE, I HAVE DESIGNED DIFFERENTLY……ITS MOUNTING POSITION IS DESIGNED TO FIT AT THE BACK OF THE REFLECTOR, AND NOT IN THE MIDDLE OF THE 2 ELEMENTS.

WHEN DESIGNING THEM LIKE THIS, YOU ALWAYS HAVE TO MAKE SURE THAT THE DISTANCE BETWEEN THE REFLECTOR AND THE MOUNTING POLE IS STILL NOT TOO CLOSE. !    A SIMILAR DISTANCE BETWEEN THE 2 ELEMENTS ID USUALLY SUFFICIENT….SO THATS HOW IT IS BUILT. I HAVE RESONATED IT AGAIN, SO THAT IT IS USABLE FOR 2 MTRS……IT CAN NOW BE USED EITHER VERTICAL/HORIZONTAL VERY EASILY WITHOUT BOTHERING ABOUT THE TOP POLE NOT BEING MADE OF METAL. I HAVE ALSO TREID USING IT FOR YOUR ‘METEOR RECEPTION’…….BRILLIANT. !

I MOUNTED IT VERTICAL FOR THIS TEST OF COURSE, HOWEVER I HAVE HAD ANOTHER THOUGHT. YOU PROBABLY HAVENT HEARD OF THIS ANDY – SLANT POLARIZATION. THIS MOXON, YOU CAN NOW EASILY…………SLANT POLARIZE…..IF YOU WISH. BY DOING THIS, IT’S POSSIBLE TO ( IF YOU LIKE ) GET THE ‘BEST OF BOTH WORLDS’. A BIT OF VERTICAL…………. A BIT OF HORIZONTAL………WHICH, IF YOU THINK ABOUT IT, MAY WELL E BETTER FOR YOUR METEOR DETECTION. FOOD FOR THOUGHT.?

ANYHOW……ITS UP TO YOU, TO USE IS IT, AND MOUNT IT AS YOU WISH. WHAT YOU MAY OF COURSE FIND, IS THAT AS YOU WILL NOW HAVE THE CAPABILITY OF EXTRA GAIN DUE TO IT BEING DIRECTIONAL  ( UNLIKE THE 5/8 VERTICAL )  AND BEING ABLE TO MOUNT IT VERTICAL AND BEAM SOUTH EAST, THEN IT COULD OUT PERFORM THE 5/8 WAVE. !!!!!!!!!!!!

HOWEVER…..IT WONT LOOK AS ‘NEAT’ AS THE 5/8  FOR YOUR XYL AND NEIGHBOURS. !

ANYHOW………ONCE AGAIN…ALL VERY WELL MADE AND SET UP, AND FOR CERTAIN IT WILL MAKE YOU A EXCELLENT PORTABLE AERIAL ANDY.

LET ME KNOW WHEN YOU CAN PICK IT UP, OR I CAN EASILY DROP IT OFF FOR YOU WHEN YOU ARE IN.

BYE FOR NOW

Vy 73……………..de……………….Bill…………..G4EHT

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