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 RC Flying Models V4, radio controlled aircrafts

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SupermotoXL
post May 31 2020, 07:58 PM

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QUOTE(zeroglyph @ May 27 2020, 06:20 PM)
Haven't had a decent outdoor flight time since January. Had to sneak a flight. You can see the shaky controls sweat.gif

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Ah! nice to be out again to fly. I still wait until everything is clear, still CMCO period. smile.gif
SupermotoXL
post May 31 2020, 08:01 PM

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Okaay R/C pilots start building your collection! I've just launched free community R/C inventory site where you can store your builds. smile.gif

Community R/C inventory and setup database launched!
You can login for free at https://www.ihaverc.com
Share your build and create your R/C empire. wink.gif Enjoy.

Website: https://www.ihaverc.com

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zeroglyph
post Jun 1 2020, 05:54 PM

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i have a question. is there any actual difference for receiver and transmitter antenna? if you notice, some FPV antenna are sold in pairs, specifically being labelled as TX and RX. is this a real thing? my understanding of wireless transmission think that it's NOT. antennas just amplify the signal, it's just some wires in specific arrangement. it doesn't matter if you use it for TX or RX.

what do you guys think? it's just a marketing scam or it's a real thing?
SupermotoXL
post Jun 2 2020, 09:32 AM

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QUOTE(zeroglyph @ Jun 1 2020, 05:54 PM)
i have a question. is there any actual difference for receiver and transmitter antenna? if you notice, some FPV antenna are sold in pairs, specifically being labelled as TX and RX. is this a real thing? my understanding of wireless transmission think that it's NOT. antennas just amplify the signal, it's just some wires in specific arrangement. it doesn't matter if you use it for TX or RX.

what do you guys think? it's just a marketing scam or it's a real thing?
*
If you're talking about that mushroom shape antenna with dome shape labelled TX and RX on top then there are actual differences. Inside the dome of RX antenna there is a SKEW PLANAR 4x lobe antenna structure that use to catch/received 'angled' signal. While in TX inside the dome have a CLOVER LEAF 3x lobe antenna structure that use to transmit angular signal in various direction ideally for transmitter. This antenna ideal for models that fly and tilt various direction in very obstructing environment.
zeroglyph
post Jun 2 2020, 01:54 PM

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these are the pairs that i have.

Attached Image

rx is a 4 lobe rhcp skew planar and tx is a 3 lobe rhcp cloverleaf. just found some extra info:

QUOTE
The Skew-Planar Wheel is best suited for the receiver, but will work pretty well as a transmitter antenna as well. It has an excellent radiation pattern and very low gain. The reverse polarization rejection pattern is much better and more uniform than the Cloverleaf, making it excellent for the receiving end. The lowest SWR possible is 1.2.

Gain: ~1dBi
Lowest SWR possible: 1.2
Directionality: Omnidirectional
Difficulty to make: High
Best suited for: Video receiver


so it can be used as either but there are best suited conditions. i have a 4 lobe skew-planar antennas on my other quads(as TX).
so in conclusion, the TX/RX pair type of antenna is not a scam after all. it's just best to use them in that particular pair configuration. myth busted! sweat.gif

This post has been edited by zeroglyph: Jun 2 2020, 02:12 PM
SupermotoXL
post Jun 16 2020, 06:05 PM

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Added Wing cam
Hey! i'm back! ..anyone still flying this season? This week testing out adding additional camera on the wing of my FPV Pitts Special aerobatic plane for extra view. Works great! laugh.gif

Video:
https://www.youtube.com/watch?v=uDPgPhFJvhU

SupermotoXL
post Jun 19 2020, 08:27 PM

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Z-84 Windy River tour!
Well time to bring out my long range uav plane again. Its hot windy season so expected some rough flight along the way. bruce.gif biggrin.gif

Video:
https://www.youtube.com/watch?v=qpESR_oKI_s

SupermotoXL
post Jun 27 2020, 10:31 PM

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Cold weather FPV flight activity.
Anyone still flying? Sharing our group FPV flight on fixed wing on weekends. Season of cold and rain returns! bruce.gif

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SupermotoXL
post Jun 28 2020, 10:41 PM

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FPV P-51D Mustang returns!
After long absent my P-51D Mustang return back to the skies! bruce.gif

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SupermotoXL
post Jul 2 2020, 08:47 PM

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Sharing video of our hangout in the skies my good old FPV Ultralight.

Video:
https://www.youtube.com/watch?v=8kXlDP-gtj0


This post has been edited by SupermotoXL: Jul 2 2020, 08:48 PM
SupermotoXL
post Jul 12 2020, 10:38 PM

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Sunday is here! time to go all out flying. Stuff all my planes for fun flying day! bruce.gif

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SupermotoXL
post Jul 14 2020, 06:56 PM

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Sharing my snapshots of Sunday in action! cool2.gif

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SupermotoXL
post Jul 18 2020, 11:50 PM

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Back with my second build cheap home made DIY F-22 Raptor pusher jet in action this weekend at open field. bruce.gif

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https://www.youtube.com/watch?v=IldLkXe7Gyk

SupermotoXL
post Jul 28 2020, 11:31 PM

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Sharing my weekend fun flying back the YAK54 aerobatic plane. bruce.gif

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https://www.youtube.com/watch?v=wO3dffhsm5g

SupermotoXL
post Jul 30 2020, 11:33 PM

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My F-18 Hornet Blue Angel return in action this week.

Video:
https://www.youtube.com/watch?v=wSOszlaGTcI

SupermotoXL
post Aug 6 2020, 09:31 PM

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Well sharing my weekends with A-10 flipping ninja around. bruce.gif

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https://www.youtube.com/watch?v=bFg1LGEKG_c

SupermotoXL
post Aug 9 2020, 11:47 PM

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Its been quite a while and yes my F-15 Eagle returns for some action! bruce.gif

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https://www.youtube.com/watch?v=OmSF930DqJI

zeroglyph
post Aug 12 2020, 10:23 AM

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this why learning to fly with GPS is dangerous. "commercial" operators are ruining the hobby mad.gif . as always, i blame DJI and their drone enthusiast community as well. hmm.gif
SupermotoXL
post Aug 13 2020, 07:41 AM

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QUOTE(zeroglyph @ Aug 12 2020, 10:23 AM)


this why learning to fly with GPS is dangerous. "commercial" operators are ruining the hobby  mad.gif . as always, i blame DJI and their drone enthusiast community as well.  hmm.gif
*
Nothing you can do about it, that why i prefer to fly fix wing/plane because mother nature give extra lift rather than flying brick trying to fight gravity on all 4x props. flex.gif
kizwan
post Aug 15 2020, 01:15 AM

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I have seen bird attacking drone. Try dodging that even with FPV. The only way stopping drone from coming down fast when there is a failure, is parachute.

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