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Gaza07:
22 Aug 2019 22:47:32
Sorted mate  ~~
Andy7:
22 Aug 2019 10:27:36
Sure. But basically, all the subjects are getting cut off.
Gaza07:
21 Aug 2019 18:14:54
Can you pm me a screen shot of what you mean
Andy7:
21 Aug 2019 12:15:41
Gaza - can you make the subject line section in the forum topic list wider? It's cutting off the subject field really short.
Andy7:
19 Aug 2019 09:14:20
Good for you!  ~~
DarkButterfly:
18 Aug 2019 19:13:57
Had another negative encounter, it's been a few years since the last one, just an uneducated ******, going on about drones being illegal yada yada yada.    :-/
Still that didn't spoil my flying time, had an absolute blast  ~~
Gaza07:
07 Aug 2019 19:52:01
ooooh mrs jones  :D
hoverfly:
30 Jul 2019 15:26:34
D.B. you tightwad.. :cool:
atomiclama:
29 Jul 2019 20:14:10
DB that just means you have shed loads of props in the first place ;-)
DarkButterfly:
29 Jul 2019 18:53:33
Just had a thought, even with all the crashing I've done, I haven't bought any replacement props in over a year ~~
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Video tx rx confusion!

Started by JT, Monday,May 27, 2013, 20:23:59

Previous topic - Next topic

JT

 I want to start getting the bits together for some FPV with my 450 quad, I';m planning on getting a gopro hero 3 silver in the next week or two so that I can record directly onto it and use it for FPV. Now looking at 5.8Ghz transmitter/ reciever combinations I';m getting all confused :-/ The vast majority seem to be 200mW but there are also 400, 500 and 1000mW transmitters too. My question is simply are there any benefits to having the higher powered transmitters or are the 200mW ones adequate for general FPV flying? I';m using a flysky th9x but am planning to upgrade it to FRSky at the same time as setting up FPV.  I have flight times on a 4000mah of about 15 minutes currently so wouldn';t be going more than 3 or 4 minutes out in any direction(and likely nothing as much as that anyway). I would like to fly around stuff too(trees, occasional obsticles etc) so would a more powerful video transmitter be helpful there?

Thanks

firey1

im running 200mwh gear for my fpv with cloverleaf aerials

this gives me same range as my 9xr with frysky on max 3 beep range

  Can I use a 500mw video transmitter instead of a 200mw and will the extra power double my range?

A. No, adding twice the Transmitter power does not double the range but add about 10-20% more range. It';s always better to have a good Receiver antenna to get better range like a good directional patch, yagi or grid antenna
MIKE

550 RC Spider quad for FPV
550 Alien quad (my sons now)
F450 quad
450 size bell 212, MD500,Augusta 109
600 size Huey running apm 2.5  3 planes  Taranis and 9xr  radios Skyzone FPV goggles

JT

 Thanks firey :smiley: can I ask what sort of range that is?  and is that with cloverleafs on both the video  rx and tx?

firey1

i have taken mine out to 2 km + with no loss of video or transmitter link I havent taken out to loss of signal yet as still to test RTL
and yes clovers on both rx / tx

the advantage of a higher power vtx is if you intend to fly round trees and stuff like you see in alot of videos  the extra power helps go round objects but i like open area flying so the 200 suits me fine
just depends where you want to fly and is the extra costs worth a small percentage of tx power
MIKE

550 RC Spider quad for FPV
550 Alien quad (my sons now)
F450 quad
450 size bell 212, MD500,Augusta 109
600 size Huey running apm 2.5  3 planes  Taranis and 9xr  radios Skyzone FPV goggles

Jumpy07

FrSky kit should get you 2km no probs..

On 5.8Ghz video to get 2km.. you will need a set of Spiro Antennas and 500mw...  1000mw is overkill.. much better to get a more sensitive rx @ 90dbm ..  its not always about power..     

You could also use a diversity video RX..  fitted with a panel antenna and a spiro for even more range...
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"

JT

 Thanks, I';ll look into all that :cool: Do you know of any trusted brands/suppliers?

Jumpy07

The new Airwave modules as fitted to ImmersionRC and Fatshark kit is currently the best..  buts its pricey and uses different frequencies from the Chinese stuff.. 
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"

JT

 Thanks Jumpy, I want to do it as cheaply as possible but don';t want to buy what essentially turns out to be crap and ends up with me buying good stuff to replace it!! Good stuff from the outset is probably the best way to go :smiley:

JT

 OK still looking into the cheap route before I buy anything :laugh: Does this reciever look Ok it says its 90dbm http://www.ebay.co.uk/itm/5-8G-FPV-Video-Receiver-RX-5-8ghz-digital-Channel-Display-for-TX-RC-Hobby-plane-/130884708372?pt=UK_ToysGames_RadioControlled_JN&hash=item1e79562814  I understand it would need the antenna changing.

firey1

the rc305 is basicly  the same for half the price
only difference is the 305 has manual dip switches but same internals as the 805
MIKE

550 RC Spider quad for FPV
550 Alien quad (my sons now)
F450 quad
450 size bell 212, MD500,Augusta 109
600 size Huey running apm 2.5  3 planes  Taranis and 9xr  radios Skyzone FPV goggles


firey1

yep nothing wrong with that setup at all for a good cheap kit
i have had no probs with mine and its the same gear just a 200 VTX is only difference
MIKE

550 RC Spider quad for FPV
550 Alien quad (my sons now)
F450 quad
450 size bell 212, MD500,Augusta 109
600 size Huey running apm 2.5  3 planes  Taranis and 9xr  radios Skyzone FPV goggles

JT

Thanks firey. I might get this as a cheaper way in to fpv then. :)

firey1

MIKE

550 RC Spider quad for FPV
550 Alien quad (my sons now)
F450 quad
450 size bell 212, MD500,Augusta 109
600 size Huey running apm 2.5  3 planes  Taranis and 9xr  radios Skyzone FPV goggles

SimonS

Just be aware that that panel antenna is vertically polarised so it will not work with spironets/cloverleafs as they are circular polarised.  The Tx and Rx are fine so just use them and some cloverleafs.

firey1

Username : Gav on this forum makes and sells  the cloverleaf antennas
MIKE

550 RC Spider quad for FPV
550 Alien quad (my sons now)
F450 quad
450 size bell 212, MD500,Augusta 109
600 size Huey running apm 2.5  3 planes  Taranis and 9xr  radios Skyzone FPV goggles

JT

Quote from: firey1 on Tuesday,May 28, 2013, 09:01:07
what you using for viewing JT


Not got that far yet!  :laugh: I would love goggles but nature provided me with an enormous brain cavity, so they likely wouldn';t fit well, so propbably a monitor and a cloth to go over it and my head. I am open to suggestions and would like to know what others use :smiley:

Quote from: SimonS on Tuesday,May 28, 2013, 09:04:21
Just be aware that that panel antenna is vertically polarised so it will not work with spironets/cloverleafs as they are circular polarised.  The Tx and Rx are fine so just use them and some cloverleafs.


Ok thanks Simon, will do.

firey1

MIKE

550 RC Spider quad for FPV
550 Alien quad (my sons now)
F450 quad
450 size bell 212, MD500,Augusta 109
600 size Huey running apm 2.5  3 planes  Taranis and 9xr  radios Skyzone FPV goggles