HobbyKing.com New Products Flash Sale
Thread Tools
Old Aug 06, 2014, 07:29 PM
Mobius Cables... I got em'
chanyote66's Avatar
United States, TN, Oak Ridge
Joined Dec 2011
3,923 Posts
Originally Posted by IBCrazy View Post
Use the 7 Watt amp with the BiQuad for controlling a vehicle on the moon. It will do ok for that

lol... ya I wont be using the 7w but I will be using the 1W open LRS system with dual 1W RX's in diversity mode
chanyote66 is offline Find More Posts by chanyote66
RCG Plus Member
Sign up now
to remove ads between posts
Old Aug 19, 2014, 01:20 PM
Registered User
United States, FL, Lady Lake
Joined Oct 2013
641 Posts

I'm too close to Kennedy Space Center to dream of 7w.
I can see it on the news, "Delta Rocket veered Off course, had to be destroyed"

Modglock20 is offline Find More Posts by Modglock20
Reply With Quote
Old Nov 04, 2014, 04:14 PM
Registered User
Joined Aug 2013
123 Posts
Anyone tried to make this biquad so small that you can put it on the googles?
bonsario is offline Find More Posts by bonsario
Reply With Quote
Old Dec 01, 2014, 10:00 AM
Registered User
Croatia, City of Zagreb, Zagreb
Joined Aug 2013
48 Posts
Hi guys.
This weekend I "separate" some time for me so I make 3 biquads, all for 2,4GHz band.

Stacked biquad is made according to picture
Name: Biquad doble.jpg
Views: 29
Size: 42.6 KB

I use 1,8mm wire for all three antennas.Reflector for stacked biquad is little smaller 170x200 than needed (200x200).
Tested by WiFi router and NetStumbler.BiQuad and BiCircle have same gain (doesn't have pic from stumbler). Also I didn't made measurement of directivity, just direct to PC (through the wall).

Name: Test.JPG
Views: 9
Size: 19.9 KB
Omni (stock), Microstrip 11dBi (from Flytron) and stacked biquad.
BiQuad is currently under roof as WiFi antenna so it is not included in this test.

Name: IMG_20141129_152949.jpg
Views: 25
Size: 256.4 KB
Name: IMG_20141130_160020.jpg
Views: 32
Size: 365.1 KB
Name: IMG_20141127_205551.jpg
Views: 22
Size: 370.5 KB


KresoZG is offline Find More Posts by KresoZG
Reply With Quote
Old Dec 03, 2014, 09:43 PM
Engineer for Christ
IBCrazy's Avatar
Amherst, VA
Joined Jun 2006
10,775 Posts
I found the stacked biQuad dimensions to be a little bit off. You also need to make the reflector plate much larger to accomodate the parasitic element. For the stacked BiQuad, the reflector should be 1.5 wavelengths instead of just 1 wavelength as in this tutorial.

IBCrazy is offline Find More Posts by IBCrazy
Reply With Quote

Thread Tools

Similar Threads
Category Thread Thread Starter Forum Replies Last Post
Build Log How To Build a BiQuad RX antenna Talajouy FPV Talk 21 Dec 23, 2010 12:52 AM
Question DIY Biquad antenna for a 900mHz Moosthegoose FPV Talk 5 Jan 14, 2010 04:37 AM
Discussion Antenna tutorial JIMOOO FPV Talk 1 Feb 25, 2007 01:04 AM
Discussion looking for a DIY tutorial. TonyBAMF Beginner Training Area (Aircraft-Electric) 8 Jan 10, 2006 05:56 PM
I need help to DIY flywire antenna for 36 MHZ RX GoodHeli Radios 5 Aug 24, 2003 09:05 PM