Biqua Sales
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Posted by Knight on August 15, 2008, 4:47 pm
Please log in for more thread options Hey guys, Just wanted you all to know that I've put together a quick web site to sell Biquad antennas. Only reason is some of you may not know how to solder and things like that so I do that for you and make a few bucks just to keep the site up! Really not making much per antenna but I like building these things. I've got some really cool ideas in mind so check on the site often! Check it out! http://www.biquadantenna.com Thanks Guys Pete | ||||||||||||||||||||||||||||||||||||||||
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Posted by Jeff Liebermann on August 15, 2008, 9:15 pm
Please log in for more thread options On Fri, 15 Aug 2008 13:47:47 -0700 (PDT), Knight Groan... I don't like the way you did not extend the coax cable all the way through the reflector and up to the antenna. The configuration you're using will work, but it's far from optimum. I did an analysis of both ways of feeding the biquad. The right way: <http://802.11junk.com/jeffl/antennas/Biquad/>
Your way:
<http://802.11junk.com/jeffl/antennas/biquad-junk/>
There's only a 1dB difference in gain, but the with a VSWR of 6:1
verus < 1.5:1, I don't consider your antenna very good. Incidentally, feel free to use the above calcs for your web site. The associated NEC2 files are: <http://802.11junk.com/jeffl/antennas/Biquad/biquad-nec.txt>
<http://802.11junk.com/jeffl/antennas/biquad-junk/biquad-junk-nec.txt> Also, I hate to point out that one can obtain similar commercial antennas for only a few dollars more than what you're selling your antenna. Good luck. -- # Jeff Liebermann 150 Felker St #D Santa Cruz CA 95060 # 831-336-2558 jeffl@comix.santa-cruz.ca.us # http://802.11junk.com jeffl@cruzio.com # http://www.LearnByDestroying.com AE6KS | ||||||||||||||||||||||||||||||||||||||||
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Posted by Knight on August 15, 2008, 10:43 pm
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> On Fri, 15 Aug 2008 13:47:47 -0700 (PDT), Knight
> > >Just wanted you all to know that I've put together a quick web site
> >to sell Biquad antennas. > >Only reason is some of you may not know how to solder and things like > >that so I do that for you and make > >a few bucks just to keep the site up! Really not making much per > >antenna but I like building these things. > >I've got some really cool ideas in mind so check on the site often! > > Check it out! =A0http://www.biquadantenna.com >
> Groan... =A0I don't like the way you did not extend the coax cable all > the way through the reflector and up to the antenna. =A0The > configuration you're using will work, but it's far from optimum. > > I did an analysis of both ways of feeding the biquad. > The right way: > <http://802.11junk.com/jeffl/antennas/Biquad/> > Your way: > <http://802.11junk.com/jeffl/antennas/biquad-junk/> > There's only a 1dB difference in gain, but the with a VSWR of 6:1 > verus < 1.5:1, I don't consider your antenna very good. > > Incidentally, feel free to use the above calcs for your web site. > The associated NEC2 files are: > <http://802.11junk.com/jeffl/antennas/Biquad/biquad-nec.txt> > <http://802.11junk.com/jeffl/antennas/biquad-junk/biquad-junk-nec.txt> > > Also, I hate to point out that one can obtain similar commercial > antennas for only a few dollars more than what you're selling your > antenna. > > Good luck. > > -- > # Jeff Liebermann 150 Felker St #D Santa Cruz CA 95060 > # 831-336-2558 =A0 =A0 =A0 =A0 =A0 =A0je...@comix.santa-cruz.ca.us > #http://802.11junk.com=A0 =A0 =A0 =A0 =A0 =A0 =A0 je...@cruzio.com > #http://www.LearnByDestroying.com=A0 =A0 =A0 =A0 =A0 =A0 =A0 AE6KS Jeff, The antennas work great! You can't believe how much the signal increases right after hooking this thing up! Right way, wrong way the Biquad antenna, and the way I build them work great! | ||||||||||||||||||||||||||||||||||||||||
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Posted by Jeff Liebermann on August 16, 2008, 8:51 am
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On Fri, 15 Aug 2008 19:43:20 -0700 (PDT), Knight >The antennas work great! You can't believe how much the signal
>increases right after hooking this thing up! >Right way, wrong way the Biquad antenna, and the way I build them work >great! Why should I believe you? I kinda like data sheets, plots, graphs, models, independent tests, comparisons, and all the numbers you seem to be lacking. Around 2004, there was Ed Williams selling his "Signal Seeker" USB antenna in this newsgroup. It was a panel antenna, built in USB radio, and small tripod. It didn't seem to matter what problem people were trying to solve, his "Signal Seeker" was the right answer. No test results, no numbers, and lots of claims similar to yours. "Works great" was his most common phrase. <http://groups.google.com/group/alt.internet.wireless/browse_thread/thread/a03133fd426e6406/>
Search Google Groups for more of the old postings. It's now morphed
into: <http://www.welkinware.com>
which continues the tradition of not supplying numbers.
Incidentally, I suggest look into vacuum forming equipment. <http://www.google.com/search?num=30&hl=en&q=vacuum+forming+hobby&btnG=Search>
It's fairly easy and cheap to make small quantities of plastic radomes
at home in your spare time. A nice cover for your antenna might make it more sellable. I once built a rather crude system made from wood, a hot plate, fans, and a big shop vacuum cleaner. After cranking out 5 acceptable covers for the sales guys, I got to sweat for 2 days cranking out the next hundred. Lots of books and videos on how it's done. Good luck. -- Jeff Liebermann jeffl@cruzio.com 150 Felker St #D http://www.LearnByDestroying.com Santa Cruz CA 95060 http://802.11junk.com Skype: JeffLiebermann AE6KS 831-336-2558 | ||||||||||||||||||||||||||||||||||||||||
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Posted by Knight on August 16, 2008, 9:05 am
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> On Fri, 15 Aug 2008 19:43:20 -0700 (PDT), Knight
> > >The antennas work great! =A0You can't believe how much the signal
> >increases right after hooking this thing up! > >Right way, wrong way the Biquad antenna, and the way I build them work > >great! >
> Why should I believe you? =A0I kinda like data sheets, plots, graphs, > models, independent tests, comparisons, and all the numbers you seem > to be lacking. > > Around 2004, there was Ed Williams selling his "Signal Seeker" USB > antenna in this newsgroup. =A0It was a panel antenna, built in USB > radio, and small tripod. =A0It didn't seem to matter what problem people > were trying to solve, his "Signal Seeker" was the right answer. =A0No > test results, no numbers, and lots of claims similar to yours. =A0"Works > great" was his most common phrase. =A0 > <http://groups.google.com/group/alt.internet.wireless/browse_thread/th...= > > Search Google Groups for more of the old postings. =A0It's now morphed > into: > <http://www.welkinware.com> > which continues the tradition of not supplying numbers. > > Incidentally, I suggest look into vacuum forming equipment. =A0 > <http://www.google.com/search?num=3D30&hl=3Den&q=3Dvacuum+forming+hobby&b= tnG...> > It's fairly easy and cheap to make small quantities of plastic radomes > at home in your spare time. =A0A nice cover for your antenna might make > it more sellable. =A0I once built a rather crude system made from wood, > a hot plate, fans, and a big shop vacuum cleaner. =A0After cranking out > 5 acceptable covers for the sales guys, I got to sweat for 2 days > cranking out the next hundred. =A0Lots of books and videos on how it's > done. > > Good luck. > > -- > Jeff Liebermann =A0 =A0 je...@cruzio.com > 150 Felker St #D =A0 =A0http://www.LearnByDestroying.com > Santa Cruz CA 95060http://802.11junk.com > Skype: JeffLiebermann =A0 =A0 AE6KS =A0 =A0831-336-2558 DTC, You're exactly right! It is naked and I plan on selling one in a case also! Thank you for the good idea! Jeff, I'm not asking you to believe me. Believe what you want. Yes there are (other) antennas out here for cheaper but certainly NOT as directional as this Biquad. You and I emailed each other about a year ago, you said you would help me in soldering up some connections for a USB adapter. Every time I emailed you, you always had some excuse and was always complaining about something! Funny we meet up again! Please don't be so critical with me. You know this antenna works good so why bash me? I'm just having fun and trying to share a good product. Thank You Pete | ||||||||||||||||||||||||||||||||||||||||
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>to sell Biquad antennas.
>Only reason is some of you may not know how to solder and things like
>that so I do that for you and make
>a few bucks just to keep the site up! Really not making much per
>antenna but I like building these things.
>I've got some really cool ideas in mind so check on the site often!
> Check it out! http://www.biquadantenna.com