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#1
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Why don't every American have this aerial ? It is beyond Big !
"Dave" wrote us For these loops, they are quoting a front-to-back ratio of 6dB. I was unaware that loops HAD a front-to-back ratio. -- Ian which side is the front? i wonder if art had anything with designing these? The front is at the halfside where the gammamatch is attached. So you point the thing with its sides closest to the gammamatcher. 6 dB is a power increase of 4 times gentlemen ! The are available in three sizes. It stays on your mind, doesn't it ? |
#2
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Why don't every American have this aerial ? It is beyond Big !
"XPye" wrote in message ... "Dave" wrote us For these loops, they are quoting a front-to-back ratio of 6dB. I was unaware that loops HAD a front-to-back ratio. -- Ian which side is the front? i wonder if art had anything with designing these? The front is at the halfside where the gammamatch is attached. So you point the thing with its sides closest to the gammamatcher. 6 dB is a power increase of 4 times gentlemen ! The are available in three sizes. It stays on your mind, doesn't it ? oh, so the gamma match is doing the radiating and the loop is shielding it from the 'back'. NOW that makes more sense. |
#3
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Why don't every American have this aerial ? It is beyond Big !
"Dave" schreef in bericht news:b4q7k.3990$i5.1762@trndny07... oh, so the gamma match is doing the radiating and the loop is shielding it from the 'back'. NOW that makes more sense. mister. First you couldn't read the front-to-back ratio diagram. And now this stupid remark. Better you stay away here with your lowlevel non constructive shill-mentality ! If you understanding is so little, don't bother us with it. Go to your mother or a shrink. Anything but go ! |
#4
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Why don't every American have this aerial ? It is beyond Big !
"XPye" wrote in message ... "Dave" schreef in bericht news:b4q7k.3990$i5.1762@trndny07... oh, so the gamma match is doing the radiating and the loop is shielding it from the 'back'. NOW that makes more sense. mister. First you couldn't read the front-to-back ratio diagram. And now this stupid remark. Better you stay away here with your lowlevel non constructive shill-mentality ! If you understanding is so little, don't bother us with it. Go to your mother or a shrink. Anything but go ! now that is what i expect from someone who is trying to defend their exagerated claims... just go away, don't try to explain why or how you measured a f/b on a loop... you obviously observed something you can't explain so you now assert that anyone who doubts you must be crazy or doesn't understand. I understand snake oil claims when i see them. And yes, i do know that many people use loops for transmitting, i also know that many people who have their choice of antenna don't bother with them because they don't perform as well as other designs... but if all you can do is a small loop on your property, then its better than nothing. |
#5
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Why don't every American have this aerial ? It is beyond Big !
"Why don't every American have this aerial ? It is beyond Big!"
Yep, big... and expensive. Probably two good reasons why not all of us have one. Never used one so can't say if it's any good or not. I have used loops (big ones) made of wire and I like the results. A single loop, all by it's self, has no appreciable directivity. Certainly possible with another 'element', or something near it, but not just by it's self. Sorry 'bout that. - 'Doc |
#6
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Why don't every American have this aerial ? It is beyond Big !
In message , XPye
writes "Dave" wrote us For these loops, they are quoting a front-to-back ratio of 6dB. I was unaware that loops HAD a front-to-back ratio. -- Ian which side is the front? i wonder if art had anything with designing these? The front is at the halfside where the gammamatch is attached. So you point the thing with its sides closest to the gammamatcher. 6 dB is a power increase of 4 times gentlemen ! The are available in three sizes. It stays on your mind, doesn't it ? Noted on the F/B. Thanks. You learn something new every day (unless you try hard to avoid it). -- Ian. |
#7
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Why don't every American have this aerial ? It is beyond Big !
"Ian Jackson" wrote in message ... In message , XPye writes "Dave" wrote us For these loops, they are quoting a front-to-back ratio of 6dB. I was unaware that loops HAD a front-to-back ratio. -- Ian which side is the front? i wonder if art had anything with designing these? The front is at the halfside where the gammamatch is attached. So you point the thing with its sides closest to the gammamatcher. 6 dB is a power increase of 4 times gentlemen ! The are available in three sizes. It stays on your mind, doesn't it ? 6db f/b can also mean a signal DECREASE to 1/4 of the 'front' signal strength in the 'back' direction. it doesn't mean that there is gain in one direction, simply that more power is going one direction than the other. i can build a small loop and add a small vertical very close to it and generate probably 20-30db f/b ratio, but it's signal compared to a dipole or even a 1/4 wave vertical will suck... those antennas have been documented for many years, but no one bothers using them for transmitting, only for transmitter hunting as receive antennas. |
#8
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Why don't every American have this aerial ? It is beyond Big !
In message VCq7k.2591$is1.904@trndny01, Dave
writes "Ian Jackson" wrote in message ... In message , XPye writes "Dave" wrote us For these loops, they are quoting a front-to-back ratio of 6dB. I was unaware that loops HAD a front-to-back ratio. -- Ian which side is the front? i wonder if art had anything with designing these? The front is at the halfside where the gammamatch is attached. So you point the thing with its sides closest to the gammamatcher. 6 dB is a power increase of 4 times gentlemen ! The are available in three sizes. It stays on your mind, doesn't it ? 6db f/b can also mean a signal DECREASE to 1/4 of the 'front' signal strength in the 'back' direction. it doesn't mean that there is gain in one direction, simply that more power is going one direction than the other. i can build a small loop and add a small vertical very close to it and generate probably 20-30db f/b ratio, but it's signal compared to a dipole or even a 1/4 wave vertical will suck... those antennas have been documented for many years, but no one bothers using them for transmitting, only for transmitter hunting as receive antennas. Loop antennas are indeed used for transmitting, and many appear to work remarkably well. -- Ian |
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