SMALL - espritmodel.com SMALL - Telemetry SMALL - Radio
Reply
Thread Tools
Old Feb 02, 2013, 08:01 PM
Registered User
United States, HI, Honolulu
Joined Sep 2011
37 Posts
Question
Cheap easy way to increase 2.4Ghz range

I just got a 1000 Watt 2.4GHz system and it came with a standard whip antenna. I am looking at an inexpensive way to increase the range. Does anyone know if this will do the trick: http://www.hobbyking.com/hobbyking/s...dproduct=15283. I don't mind it being directional.

I was also wondering about switching out the whip on the TX for a clover-leaf antenna -- will that work with this type of directional antenna and will the clover-leaf be a significant improvement over the whip?
Thank you
Eric Tessmer is offline Find More Posts by Eric Tessmer
Reply With Quote
Sign up now
to remove ads between posts
Old Feb 02, 2013, 09:03 PM
fly by night
BCSaltchucker's Avatar
Joined Sep 2011
5,277 Posts
it will get you lots of range. It will not perform very well at all with a cloverleaf! That is a linear patch antenna, 3dB loss when run with CP. Better off with the whip, make your own dipole, or upgrade to a V antenna since those are linear and work well for range.

You want range and stable signal when banking? dial up RMRC or TrueRC.net and get properly matched, well made CP antennas. The directional should be a helical, crosshair, gatling, ... whatever you can afford.
BCSaltchucker is offline Find More Posts by BCSaltchucker
Reply With Quote
Old Feb 02, 2013, 11:15 PM
Registered User
North vancouver, B.C. Canada
Joined Apr 2008
18,474 Posts
Orrigionl lawmate tx antenna works great

Increase range with high dbi video rx antenna
David22 is online now Find More Posts by David22
Reply With Quote  (Disabled)
Old Feb 03, 2013, 02:00 AM
Crashing is my thing.
MayMayDay's Avatar
Canada, BC, Vancouver
Joined Mar 2012
1,586 Posts
Watch this:
Antennas 101 - Polarization, Diversity & Gain Patterns (27 min 56 sec)



Then look over this (Step 1 & 2):
http://videoaerialsystems.com/how-to-choose-an-antenna/
MayMayDay is offline Find More Posts by MayMayDay
Reply With Quote
Old Feb 03, 2013, 11:51 PM
Registered User
United States, HI, Honolulu
Joined Sep 2011
37 Posts
Thank you for all the help and thank you MayMayDay for the great video link and how to choose your antenna link - this was excellent and was just what I needed.
Eric Tessmer is offline Find More Posts by Eric Tessmer
Reply With Quote
Old Feb 04, 2013, 12:15 AM
Just trying to get a nut.
scrtsqrl's Avatar
United States, VA, McLean
Joined Oct 2006
6,382 Posts
How To Make A Cheap WindSurfer Antenna to Boost Wifi Signal (4 min 14 sec)


Try a windsurfer antenna booster.

It works well, especially that it costs almost nothing.
scrtsqrl is online now Find More Posts by scrtsqrl
Reply With Quote
Old Feb 05, 2013, 11:31 PM
Registered User
United States, HI, Honolulu
Joined Sep 2011
37 Posts
scrtsqrl - Thank you! I will definitely give the windsurfer antenna booster a try. If this works, it will certainly win the criteria for the cheapest, easiest, way to increase 2.4Ghz range.
Eric Tessmer is offline Find More Posts by Eric Tessmer
Reply With Quote
Old Feb 05, 2013, 11:32 PM
Just trying to get a nut.
scrtsqrl's Avatar
United States, VA, McLean
Joined Oct 2006
6,382 Posts
"Windsurfer" Antenna Booster. (5 min 3 sec)
scrtsqrl is online now Find More Posts by scrtsqrl
Reply With Quote
Old Feb 06, 2013, 02:59 AM
Registered User
Ascended's Avatar
Joined May 2012
437 Posts
Use a skew planar wheel from Circular Wireless on both the TX and RX, or a SPW on the TX and a Helical on the RX if you want insane range.

The issue I find with dipoles is their radiation pattern is quite flat, once you start going 5 or 6km away any pitch up or down will take our out of the beam width when flying away, or banking when flying parallel. This makes it kinda hard to gain altitude in a hurry if you need to.

I wouldn't bother with a Cloverleaf, the radiation pattern is awful compared to a SPW - there is no reason not to use a SPW.

How far are you looking to go, because a 1W tx with even an average receiver (Airwave based) will get out past 15km without breaking a sweat.
Ascended is offline Find More Posts by Ascended
Reply With Quote
Old Feb 06, 2013, 09:30 AM
Project Tormentor is flying!
United States, WA, White Salmon
Joined Nov 2005
2,010 Posts
1000 Watts! Scary!
philthyy is offline Find More Posts by philthyy
Reply With Quote
Old Feb 06, 2013, 09:52 AM
Registered User
Edmonton, AB, Canada
Joined Oct 2002
293 Posts
I can only speak from personal experience, but my 2.4ghz (500mw) video transmitter with a stock Lawmate whip can easily do 8 miles of crystal-clear video with a 14dBi patch on the ground: http://www.readymaderc.com/store/ind...products_id=56

So $40 will give you all the range you need. No need to get complicated.
anixs is offline Find More Posts by anixs
Reply With Quote
Old Feb 06, 2013, 11:28 AM
Registered User
United States, HI, Honolulu
Joined Sep 2011
37 Posts
Quote:
Originally Posted by philthyy View Post
1000 Watts! Scary!
Woops, 1000mW. With a 1000 watts I could fly to China! philthy, thanks for the catch.
Eric Tessmer is offline Find More Posts by Eric Tessmer
Reply With Quote
Old Feb 06, 2013, 12:00 PM
Project Tormentor is flying!
United States, WA, White Salmon
Joined Nov 2005
2,010 Posts
Heh. No worries. So, what control frequency are you using with this video system?
philthyy is offline Find More Posts by philthyy
Reply With Quote
Old Feb 06, 2013, 12:03 PM
Registered User
BushmanLA's Avatar
Joined Dec 2005
1,816 Posts
Buy circular polarized, antennas. End of story. If you want to fly more than a mile out, a circular polarized directional antenna will be useful, otherwise omni's will be just fine.
BushmanLA is offline Find More Posts by BushmanLA
Reply With Quote
Old Feb 06, 2013, 09:00 PM
Registered User
United States, HI, Honolulu
Joined Sep 2011
37 Posts
Video is 2.4Ghz and Radio is 72Mhz.
Eric Tessmer is offline Find More Posts by Eric Tessmer
Reply With Quote
Reply


Thread Tools

Similar Threads
Category Thread Thread Starter Forum Replies Last Post
Discussion 2.4GHz range tests in the new issue of RC Sport Flyer pwy Radios 20 Jan 08, 2014 10:35 AM
Discussion Approx Range 2.4ghz 500mw mick3485 FPV Talk 9 Jan 17, 2013 02:04 AM
For Sale 1 Watt 2.4Ghz Booster (3s lipo) w/ Attn pad, High gain Ant -- MUST SEE SELLING CHEAP mmalik4 FPV Equipment (FS/W) 3 Jan 04, 2013 10:23 PM
Easy, cheap way to increase video camera range? eyedoc Aerial Photography 4 May 07, 2004 06:31 PM