Detection of meteors by radio scatter from Graves 18/4/2017

HELLO ANDY

WELL, I HAVE DONE FURTHER TESTS AND FOUND THE FOLLOWING

FIRST OF ALL, I AM DELIGHTED TO SAY THAT MY KENWOOD – TH-F7

I HAVE MANAGED TO GET IT TO ‘FINE TUNE’ SO WAS ABLE TO TUNE

IT EXACTLY TO….143.049…..USB

I GOT THE IMPRESSION THAT IT WASN’T AS SENSITIVE AS THE IC-706

ALTHOUGH IT SHOULD BE, AS THE TECHNOLOGY BUILT INTO IT IS

MORE ‘UP TO DATE’ THAN THE IC-706 BY QUITE A FEW YEARS…..

SO, I ADDED MY H/BREW PRE-AMP IN LINE…….AND I AM DELIGHTED

TO SAY THAT I DID RECEIVER A COUPLE OF METEORS/PINGS. !

THIS AGAIN WAS ON…………143.049…….USB

NOW…..THINKING ABOUT USING THE MOXON FOR VERTICAL POLARIZATION..

THIS IS …EASIER SAID THAN DONE ANDY. !!!!!!!!!!!!!!!!

ONCE YOU START DOING THAT THE FOLLOWING HAPPENS…..

BECAUSE YOU WILL THEN HAVE THE AERIAL SUPPORT (METAL MAST)

RIGHT IN LINE WITH THE 2 ELEMENTS, INSTANTLY THE POLAR DIAGRAM OF

THE AERIAL IS DESTROYED. !   THAT’S THE BEAUTY OF USING THE MOXON

(OR ANY YAGI AERIAL) HORIZONTALLY, AS THE METAL MAST SUPPORTING

THE AERIAL DOES NOT AFFECT IT……….HOWEVER, WHEN MOUNTED VERTICALLY

(AS DESCRIBED) THE METAL MAST AFFECTS THE AERIAL TERRIBLY. !

THE ONLY WAY AROUND IT IS THIS…….

THE TOP SUPPORT/MAST MUST BE MADE OF A…NONE METALIC FORM…

EITHER, FIBREGLASS/PLASTIC/WOOD………….OR SIMILAR……IT IS THEN

FINE AND WILL WORK PERFECTLY…….BUT IN PRACTICE, THIS IS VERY

OFTEN, EASIER SAID THAN DONE. !

SO……IF YOU WANT TO USE THE MOXON VERTICALLY…..THIS MUST BE DONE

OTHERWSIE……………FORGET IT……….IT AFFECTS IT THAT BAD.

NOW……….SECONDLY…I HAVE DONE SOME MONITORING THIS MORNING

AND I CAN NOT RESOLVE ANY…..’DATA TRANSMISSION’ WHATEVER FROM GRAVES…

SO I CAN ONLY ASSUME THAT CONDITIONS ARE NOT AS FAVOURABLE TODAY AS

THEY WERE YESTERDAY. ?    I CANT IMAGINE THAT THE DATA TRANSMISSION HEARD

YESTERDAY IS ONLY TRANSMITTED AT CERTAIN TIMES. ?   BUT IT CERTAINLY

WAS NOT DETECTABLE THIS MORNING, BUT I DID RESOLVE A HAND FULL

OF METEORS.

REGARDING MY H/BREW 5/8 VERTICAL………….YES ANDY IF YOU WANT TO TRY IT

THIS WEEK END, THEN THAT’S FINE………….YOU WILL NEED A GOOD LENGTH OF

LOW LOSS 50 OHM FEEDER  ….IT HAS A SO–239   SOCKET FITTED TO IT……

BUT ENSURE THAT YOU CONNECT THE FEEDER CAREFULLY…AND DISCONNECT IT

CAREFULLY AT THE END OF USE…….

IT HAS 2 RADIAL TUNED ELEMENTS FITTED TO IT………….THEY NEED TO FACE DOWNWARDS

IF POSSIBLE, BUT THEY TEND TO LIE IN ABOUT THE CORRECT POSITION ONCE LIFTED

UP IN THE AIR.

NOT MUCH ELSE………….ITS ALL GUD STUFF…

OH YES….FINALLY THE QRG…..

I HAVE NEVER HEARD ANY PINGS/METEORS ON ANYTHING OTHER THAN….143.049   USB

BUT THERE NEEDS TO BE PLENTY OF METEOR ACTIVITY TO CONFIRM ONE WAY

OR THE OTHER.

THE INFO ALWAYS SAYS…..143.049…USB……SO IF THIS WASNT IMPORTANT I FEEL

THEY WOULD SAY OTHERWISE.

HAVE FUN

de……………………Bill………………G4EHT

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