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In Reply to: Is Magnum Dynalab SR-100 Best Budget Antenna? posted by AnalogJ on March 29, 2007 at 06:17:19:
what are the arcs - on the compass - for your actual "Wanted" stations? and could a rhomboid made of wire on your ceiling/s point at the centre of the arc/s for some / most of them?You'll need a map and a plan of yr block with yr house and its rooms on it with NTH/s/e/w marked on IT, too!
This IS the only really useful way to determine aimings and siting for any antenna for VHF and on up. Not IMO, but IME! Even when there's only ONE axis to use you have to know how it crosses your block / residence. even for flats, condos and internal antennas. You can also use combinations of antennas if you have a loft.
Only after this knowledge can you try swing the 'tenna side to side from the notional axis, to optimise reception on ONE direction!
I suppose it shouldn't, but still DOES surprise me, that so few enquirers here either understand this basic fact OR have carried the task out!
Further it seem to me to be a distorted pattern of investment to pay a fair bit for a GOOD tuner, modded or NOT and then seek a BUDGET antenna. Does rather limit your ROI, doesn't it.
Does yr SO look at the ceilings a lot? got BIGGGGG floor rugs?
IF feasible, a rhombic really IS way ahead of any other budget indoor antenna. <> -> plan view of a rhombic and its directional axis!
I'd personally love to build an external one, but I'm not convinced that SWMBO would accept another two masts in the garden, with the rear one out FRONT!
But it would have heaps of gain, COULD be very directional (not easy to experiment with) and also do the two VHF band III TV stations REALLY well. I'd then only need my long UHF bd1V arrowhead yagi!
My two desired FM stations and all 5 terrestrial TV stns - are on the one huge telecom-tower/tourist-trap/restaurant/viewing platforms.
It does all the in and out comm's links for Canberra. Satellite down and up links, mobile links, and microwave links to Sydney 200 MILES away and on to Melbourne via links in the Aussie Alps etc etc.
It is where most of Canberra's 12 or so FM stations have had their bigger txers since it was built. High enough up to get down into MOST of the Mind you, 'Canberra' is so spread out and hilly that there are also repeaters going in for most of these on hills in/for Tuggeranong the '2nd newest' large connurbation which runs from us to the South.
VERY few Canberrans need rotators!
WarmestTimbo in Oz
The Skyptical Mensurer and Audio ScroungerAnd gladly would he learn and gladly teach - Chaucer. ;-)!
'Still not saluting.'
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