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Old Feb 27, 2012, 10:57 AM
H19 is offline
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can i use, RG-6 75ohm 3.0GHZ direct TV digital cable?
or
F6TSVV-or-UU-cant read it right) ETL CATTV 18AWG

to make a BiQuad?

thanks
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Old Mar 30, 2012, 07:20 PM
Rastislavko is online now
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You can't take the sky from me
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Hi Alex, please, is it OK to cover resonator with plastic cover - in this example I used plastic box from Carte D'or ice cream ? Or it will damage the antenna gain or characteristics or all together...
Old Mar 31, 2012, 03:43 AM
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Quote:
Originally Posted by Rastislavko View Post
Hi Alex, please, is it OK to cover resonator with plastic cover - in this example I used plastic box from Carte D'or ice cream ? Or it will damage the antenna gain or characteristics or all together...
I do not think there are problems, it's just plastic!
Old Apr 07, 2012, 02:06 PM
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5.8ghz Biquad


Hey, I freaking love this Antenna, I built one for these Biquads for 5.8ghz. I'm

Running one of your clover leaf antennas on my Transmitter, and this biquad, on

the receiver. Its flawless video, I haven't found the limits yet. Iv'e been out over three

miles and not a blip. My Dad has access to a network analyzer. These are the

results of my Biquad. -20.60dB and a 1.2swr
Old Apr 07, 2012, 09:14 PM
IBCrazy is offline
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Quote:
Originally Posted by Rastislavko View Post
Hi Alex, please, is it OK to cover resonator with plastic cover - in this example I used plastic box from Carte D'or ice cream ? Or it will damage the antenna gain or characteristics or all together...
That cover is fine. Good idea, actually.
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Old Apr 08, 2012, 10:45 AM
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Still hackin'
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Tuning


Hi Alex - how do you tune a BiQuad for SWR? ie you can trim a patch and use gamma match on a yagi...
Old Apr 08, 2012, 10:47 AM
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MyFlyDream
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Quote:
Originally Posted by Thermicdude View Post
Hi Alex - how do you tune a BiQuad for SWR? ie you can trim a patch and use gamma match on a yagi...
Make the figure 8 as best as you can in measurements..
Then tune it by moving the figure 8 up and down from the reflector plate
Old Apr 08, 2012, 10:52 AM
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Quote:
Originally Posted by erazotropa View Post
Make the figure 8 as best as you can in measurements..
Then tune it by moving the figure 8 up and down from the reflector plate
Duh... that makes sense!
Old May 27, 2012, 06:41 AM
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I'm struggling to find a solderable reflector for a reasonable price, do you think this would be ok http://www.ebay.com/itm/1-X-Copper-P...item4ab435f257
Old May 30, 2012, 04:05 AM
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Originally Posted by hwat rc View Post
I'm struggling to find a solderable reflector for a reasonable price, do you think this would be ok http://www.ebay.com/itm/1-X-Copper-P...item4ab435f257
I used PCB on mine - perfect
Old May 30, 2012, 04:37 AM
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+1

Used single sided copper clad PCB
Old May 30, 2012, 09:07 AM
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New at this


BiQuad 11dbi antenna.

what would give the further distance.
A BiQuad with 4 squares in a row
or
Two BiQuad on stacked on top of the other?

Thanks for the Help
Old Jun 04, 2012, 11:21 AM
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Pcb active element?


Has any one made the active element from a etched pcb trace. I am considering making the bowtie for 2.4ghz by etching on a pcb. I see a lot of commercially made antennas use this method. Will it work as good as 14-16 awg?

Thanks

Joe
Old Jun 23, 2012, 10:47 PM
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I've made two biquads for my 1280mhz diversity setup. For medium range flying (1-3 miles) what do you think is the best way to mount these both to my tripod? I'm thinking side by side angled up slightly of course and also so that each antenna's 50 degree beam overlaps the other by a few degrees? I don't have a tracker.
Old Jun 25, 2012, 09:04 AM
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Quote:
Originally Posted by turbodriven View Post
I've made two biquads for my 1280mhz diversity setup. For medium range flying (1-3 miles) what do you think is the best way to mount these both to my tripod? I'm thinking side by side angled up slightly of course and also so that each antenna's 50 degree beam overlaps the other by a few degrees? I don't have a tracker.
I would say this is an acceptable system. In fact, this is exactly what I personally use. I angle mine at 45 degrees up with a 20 degree tilt

-Alex
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