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  • Icefever: At last the TX is talking to the FC...now I can get on with sorting out the next part
    December 14, 2017, 15:40:20
  • Icefever: Bad R...I have matey here..[link].
    December 12, 2017, 15:30:28
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    December 12, 2017, 07:05:40
  • Icefever: I've set the failsafe in the TX setting that's all..there's no connection between the TX and quad. at all..
    December 12, 2017, 03:40:10
  • Icefever: Andy..I've only messed with the failsafe one...but not in Beta.
    December 12, 2017, 03:38:04
  • Andy7: Ice: Is it just that it's not arming? Have you set the switch settings in betaflight?
    December 11, 2017, 21:24:23
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    December 11, 2017, 15:04:23
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    December 10, 2017, 16:55:37
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    December 10, 2017, 12:21:29
  • Icefever: Hi Andy I have a prob with the Tx.  it's bound to the rx but when I try the either gimbel nothing happens....I have a green led on the rx..when connected to beta I can run up the motors but nothing else??help
    December 10, 2017, 09:23:12
  • Andy7: Perfect day to have shaved off the beard.... :(
    December 10, 2017, 09:17:17
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  • Bajadre: sounds a fair price mate
    December 08, 2017, 16:47:54
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    December 08, 2017, 16:13:15
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    December 08, 2017, 14:32:26

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Author Topic: Tx modification P3s  (Read 232 times)

Offline iRobot

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Tx modification P3s
« on: October 30, 2017, 19:42:24 »
Decided to mod the P3s antennas for hopefully better range.
The 2.4 ghz internal panels have been removed, new external alfa 7dbi paddles fitted.
The stock 5.8ghz antenna replaced with a Silverstone 7dbi high gain omni at 230mm long.
The rp-sma to ipx conector fitted with holes having to be drilled in the top of the Tx plastic casing.

http://i860.photobucket.com/albums/ab163/Bazkelly/IMG_20171030_172955.jpg
Tx modification P3s


http://i860.photobucket.com/albums/ab163/Bazkelly/IMG_20171030_173037.jpg
Tx modification P3s


http://i860.photobucket.com/albums/ab163/Bazkelly/IMG_20171026_190433.jpg
Tx modification P3s


http://i860.photobucket.com/albums/ab163/Bazkelly/IMG_20171026_185150.jpg
Tx modification P3s


http://i860.photobucket.com/albums/ab163/Bazkelly/IMG_20171026_185243.jpg
Tx modification P3s


http://i860.photobucket.com/albums/ab163/Bazkelly/IMG_20171026_185821.jpg
Tx modification P3s


http://i860.photobucket.com/albums/ab163/Bazkelly/IMG_20171026_181116.jpg
Tx modification P3s


I've got a few trips to the coast planed so I'll range test over some large bodies of water.

Offline hoverfly

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Re: Tx modification P3s
« Reply #1 on: October 30, 2017, 20:06:47 »
Interesting.......Very interesting... :hmm:  Hope test goes well.. ~~
Reptile folder , alien 500 , F/ Shark Attitudes,
Spektrum DX 8 with mode knob conversion.Tarot 650, Air-rio Kinetic.. DX9  Various wings and planks..

Offline Bajadre

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Re: Tx modification P3s
« Reply #2 on: October 31, 2017, 01:00:54 »
sweet tidy mods there buddy let us know how she goes  ~~
Emax nighthawk 280,Emax x4,Blade 350qx3,dx6 (gen2),fatshark doms v2.

Offline iRobot

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Re: Tx modification P3s
« Reply #3 on: November 26, 2017, 18:26:05 »
Just waiting for postie to deliver two 5W 2.4GHz range boosters, so I've made a bracket to hold them on the Tx.
Fabricated from old spare racer quad nuts and bolts, metal soldering iron stand cut up bent and drilled to suit, stick on carbon film to a plastic shaped backing plate  ~~


That slow boat from China  :popcorn:

http://i860.photobucket.com/albums/ab163/Bazkelly/IMG_2017-11-26_17-41-23.jpg
Tx modification P3s

Offline iRobot

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Re: Tx modification P3s
« Reply #4 on: December 04, 2017, 20:53:48 »
Delivered today  ~~
The boosters are 4w (not 5 as last post), I had to cut the plug off the power wires so I could run off a 3s lipos , bit of soldering and fitting to the mount and job done.
Had a quick test with the antennas supplied with the boosters, all seemed good with no loss of video reception. The only issue I can see is the picture on my phone is a bit laggy, I'll put that down to it being a really crapy android device (it's always done it).
http://i860.photobucket.com/albums/ab163/Bazkelly/Mobile%20Uploads/IMG_20171204_190235.jpg
Tx modification P3s


I'll give the flat panel antennas a good go next time I get chance.
http://i860.photobucket.com/albums/ab163/Bazkelly/Mobile%20Uploads/IMG_20171204_190036.jpg
Tx modification P3s


http://i860.photobucket.com/albums/ab163/Bazkelly/Mobile%20Uploads/IMG_20171204_190051.jpg
Tx modification P3s


Bit of spec,,,,, might as well be wrote in Chinese  :laugh:

Specification:
Frequency range : 2.4~2.5Ghz
Operating voltage : 6~16V
Receiving gain: 10dB +/- 1
Transmission gain : 13dB +/- 1
Input trigger power : Min 3dBm Max : 20dBm
Maximum output Power : 36dBm (4W)
EVM : 3%@28dBm 802.11g 54Mbps OFDM 64QAM BW 20Mhz
DC supply current : 435mA@pout 28dBm 9V
Noise figure: <2.4dB
TX/RX switch time delay : 1us
LED indicator : Transmitter : Green, Receiver : Red
Operating ambient temperature : -40 deg +70 deg
operating humidity : up to 95% rel. humidity
Dimension : 82x50x21mm
Weight: 0.25kg net

Offline hoverfly

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Re: Tx modification P3s
« Reply #5 on: December 05, 2017, 09:55:52 »
Neat.. ~~
Reptile folder , alien 500 , F/ Shark Attitudes,
Spektrum DX 8 with mode knob conversion.Tarot 650, Air-rio Kinetic.. DX9  Various wings and planks..