Welcome to Multi-Rotor UK. Please login or sign up.

Saturday,January 18, 2020, 20:19:25

Login with username, password and session length

Shoutbox

Rares Gosav:
17 Jan 2020 17:44:22
Hi guys and happy new year!!!
ched:
01 Jan 2020 00:12:50
Happy new year everyone, happy flying.  :beer2: :beer2:
Gaza07:
31 Dec 2019 17:06:13
Happy new year all hope 2020 is a cracking year for you  :beer2:
ched:
25 Dec 2019 00:00:49
Happy Christmas to everyone.
apollo7:
24 Dec 2019 13:50:56
Seasons greetings to all on this forum have a good one ;)
ched:
21 Dec 2019 17:58:42
Have a great time DB. Look forward your projects in 2020.  :beer2:
hoverfly:
21 Dec 2019 16:59:17
Have a good one D.B. ~~ :beer2: :beer2: :beer2:
DarkButterfly:
21 Dec 2019 16:14:27
 :beer2:
DarkButterfly:
21 Dec 2019 16:13:44
Tbh I've been really busy, not had much time to fly anything and with conditions being crap, hopefully in the new year I'll have some new projects on the go, mostly to do with HAM radio, will certainly fly again soon. FTR I hate FB too   :D Merry Christmas
Gaza07:
21 Dec 2019 15:21:30
Merry Christmas  :beer2:
Members
Stats
  • Total Posts: 197456
  • Total Topics: 19923
  • Online Today: 48
  • Online Ever: 530
  • (Tuesday,June 26, 2012, 08:34:46 )
Users Online
Users: 0
Guests: 27
Total: 27

Theme Changer





thumbnail

3d - Printworx

Printing 3d Forum

skew planar aerials

Started by Gav, Monday,October 01, 2012, 13:59:00

Previous topic - Next topic

Gav

forget the 3 leaf clover on your fpv setup.  Just use 4 leaf skew planar on both vrx and vtx and enjoy better reception.

icedfusion

I have a 4 leaf skew plannar on the rx but a 3 leaf on the vtx - not sure why they came like this, but this was the 'recommended' pairing.  Got some links to why 4 leaf is better than 3 leaf?

ice.

Gav

just cut n pasted the text below from anothet site that helps explain:

The 3 leafed 'cloverleaf' is IBCrazy's (Alex) simplified build of the 4 leafed Skew-Planar.
Alex has done a lot to drive Circular Polarity around the FPV communities and the cloverleaf is his way of adding his own touch to C-P and claim some originality.

However, the Cloverleaf is not as good at maintaining circularity or opposite hand polarity rejection - it is these 2 things that are most important in circular polarised antennas for our purposes.  Alex's claim that the cloverleaf has more gain than the Skew Planar and this is what seems to drive everyone into believing it's the best antenna, but the gain is so neglible, it's not worth considering IMHO.
It's not the best antenna.

If you check out the long range flights, nobody uses the cloverleaf at these distances (mostly because of the nulls in the VTx pattern).






goraplx

HI
I';m planning to upgrade my antennas and I';m not sure which option will be the best.
Dont care about distance because i fly up to 400m and this is enough for me.. I care about the best quality of signal.

1. Stay with immersion set
2. Buy 4 lobe from immersion and use this on TX
3. Buy 2x skew plannar antenna from  http://hobbywireless.com/index.php?main_page=product_info&cPath=73_77&products_id=801
    and use them on TX and RX
4. Buy crosshair from Hugo  http://www.truerc.net/canada/index.php?main_page=product_info&cPath=30_32_41&products_id=212
   and use this on RX




This antenna   looks for me better because is more rigid than immersion.
DJI F550 Hexa Naza & GPS
JR XG8 , Graupner 9" Props
LifePO4 - A123 5S1P 2300-2500mAh ANR26650M1A and B cells
GoproHD2 , Fatshark Rx, ImmersionRC Tx 600mW, Fatshark Dominator, SpiroNet set Antenna, EzOSD+CurrentSensor

BOINC->
http://signature.statseb.fr/sig.py?id=33

Jumpy07

Does anyone know of where I could get some skews for my 433Mhz 3DR';s ?.. been looking but cant find any ?

Many Thanks in advance
BNUC-S Pilot with PfCo /PFAW.
UAQ / CAA PfCo Instructor / Flight Assessor

"All that is necessary for the triumph of evil is that good men do nothing"

Balders

Quote from: Jumpy07 on Sunday,October 21, 2012, 21:50:42
Does anyone know of where I could get some skews for my 433Mhz 3DR';s ?.. been looking but cant find any ?

Many Thanks in advance


The elements would be 709mm in length!  70 cm';s....I think that';s too large to be practical for most things.
Growing old is mandatory...Growing up is optional

FPV Guru
BNUC-S qualified
Sbaps.co.uk

Jumpy07

Yikes.. handnt thought about that.. duh.. and I should know better lol..

Many Thanks

BNUC-S Pilot with PfCo /PFAW.
UAQ / CAA PfCo Instructor / Flight Assessor

"All that is necessary for the triumph of evil is that good men do nothing"