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Wideband Aerials
J G Miller wrote:
On Thursday, October 30th, 2008 at 12:12:28h +0000, Robert Wilson wrote: Is that a 'Barbecue' aerial? Before today, I had not heard that description. Are you referring to a bow-tie array? I think so yes, the one with the flat structure..immune(?) to multipath problems? Would have thought Bill had heard of that? Rob. |
Wideband Aerials
"Robert Wilson" wrote in message et... J G Miller wrote: On Thursday, October 30th, 2008 at 12:12:28h +0000, Robert Wilson wrote: Is that a 'Barbecue' aerial? Before today, I had not heard that description. Are you referring to a bow-tie array? I think so yes, the one with the flat structure..immune(?) to multipath problems? Would have thought Bill had heard of that? What? This Bill? I didn't know I was involved in a discussion about bow tie arrays. Anyway, do you mean a grid aerial, commonly called a fireguard? These have two or four dipoles in front of a large reflector. The dipoles are one above the other when the polarisation is horizontical and are connectified together by 'phasing bars' which cross to compensate for their differing lengths. Bill |
Wideband Aerials
Hi,
Sorry to drag you into this one Bill, but yes I think that's what you're talking about. I shall follow the idea of an 18 element Group A though. This was the choice I had made unless there some positive comments about a WB aerial. I will need at least an 6 way distro amp as I will have six tuner cards in my server. I have been using MythTV with a Satellite feed from Astra 2. The EPG is a real challenge though and falls short of the Wife Acceptance Factor. She has only just got used to VoIP, but I have some way to go to get her to dump Sky+. Rob. Bill Wright wrote: "Robert Wilson" wrote in message et... J G Miller wrote: On Thursday, October 30th, 2008 at 12:12:28h +0000, Robert Wilson wrote: Is that a 'Barbecue' aerial? Before today, I had not heard that description. Are you referring to a bow-tie array? I think so yes, the one with the flat structure..immune(?) to multipath problems? Would have thought Bill had heard of that? What? This Bill? I didn't know I was involved in a discussion about bow tie arrays. Anyway, do you mean a grid aerial, commonly called a fireguard? These have two or four dipoles in front of a large reflector. The dipoles are one above the other when the polarisation is horizontical and are connectified together by 'phasing bars' which cross to compensate for their differing lengths. Bill |
Wideband Aerials
Ha ha, very funny...
Brian -- Brian Gaff....Note, this account does not accept Bcc: email. graphics are great, but the blind can't hear them Email: __________________________________________________ __________________________________________________ __________ "Robert Wilson" wrote in message et... Hi, Is that a 'Barbecue' aerial? Rob. J G Miller wrote: On Thu, 30 Oct 2008 11:17:52 +0000, Robert Wilson wrote: Should I get a wideband to cope with any eventuality or should I actually get a group A? I can see the Mast from my garden If you are so close, why not consider a log periodic (which is wideband)? |
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