Added: 4 years ago
From: Jumpjet101
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  • I know it was a long time ago, but that comment about deans plugs was just stupid.

  • The camera appears to have the signal distorted. Make sure the TX antenna is not pointing to the model. Set the country code to US to increase the TX power.

    I also hope you do not use the Dean's connectors for your battery. Those are for low-budget models and foamies. Use the 3.5mm gold-plated banana plugs at the very least, preferably the best 4mm plugs.

    I hope you have the external receiver option installed and outside of canopy as it should be.

  • My guess for the signal loss is power brownout. Older Spektrum receivers have a firmware version that causes this delay upon brownout. There is a new version that reduces the loss to a mere split second. You should, however, fix your power first so the brownouts won't occur anymore. The T-rex 600 requires the most powerful of ESCs already, so make sure you choose one with the strongest SBEC. If your ESC is programmable, reduce its sampling frequency to 8kHz to reduce noise.

  • ohhh man you got so lucky... damage could have been so much worse!

  • question wats a DX7 lockout?

  • link back up with you radio. when it links back, you have full control again. one way to tell if this has happend is, you will be flying then, suddenly you will have no signal. if you walk up to your aircraft and now for some reason you have signal again then you know this happened. (usually the receiver will be flashing if you lost the link) you can also check this with a data link that spektrum sells, that shows you how many frames your rx didnt get and if you lost signal and how many times

  • @heycheckthatout The FHSS uses a random sequence of channels. This sequence minimizes chances a collision will occure. A collision occurs, when 2 transmitters transmit at the same time on the same channel. When they do, single or both transmittions will be destroyed. The 2.4GHz system used for RC uses quite narrow bandwidth, so many channels can be present, which is nice. But imagine a wireless LAN equipment on the 2.4GHz spectrum, which is EXACTLY the same spectrum that is used for RC.

  • @cooldemo FHSS minimizeing chances of collision yes...and now. frequency hopping is just that, switching to one of 80 random channels used with the rc 2.4ghz spectrum. the issue with FHSS is more and more collisions the more radios that are on. as the amout of radios turned on goes up so do the destroyed transmissions. So why use FHSS at all. well because regardless of what futaba says about being the first radios in 2.4ghz spektrum brand got the patent for channel locking.

  • @cooldemo because of them geting this patented it left the other radio componeys to have to use frequency hopping, and make it sound good. what makes spektrum brand better and also lag linking back up when there is power loss is because it does use wlan type technology when it is binded. when the radio is linked, like with all brands it sends its own unique radio code so that the rx will only listen to said owners radio. after binding when you turn your radio system on.....

  • @cooldemo ......spektrum brand radios pick two channels and lock them out to other spektrum brand radios. the prevent interference with FHSS systems, when it finds its two channels it chooses one of i think its like 300 sub frequencys and one of 50 sub frequenceys of those sub frequencys. thus all this takes a sec for the receiver but the benifit is less lag in a noisey envierment. all spread spectrum rc systems also use.

  • @cooldemo all spectrum systems are also like wlan tech in that the receivers are not receivers at all, they are transeivers. the tx sends info to the rx and the rx sends info back to the tx. so if it gets a crupt or missing info packet it will request the tx to resend or throws it out and corrects with the next signal it gets. this is is what makes lockout impossible on a 2.4 system. you can only loose "the link" from power loss or something blocking signal. lock out is with pcm radios only

  • @heycheckthatout This wlan equipment can take anywhere from one third to the whole spectrum. Now we just need a little stronger signal from the wlan and weaker from our transmitter and BANG control. 2.4GHz band is too crowded, I don't get why they don't produce this FHSS on 35 or 40 MHz. This spectrum is RESERVED for rc models.

  • so with this code your receiver will only listen to the radio that is sending this code with the signal going to it. what happens when you loose the link with your receiver is, your receiver is waiting for this constant radio code weither you give an input or not. if it doesnt receiver it after about a second or so it goes in to fail safe mode and shuts everything down so your helicopter wont fly away. when this happens due to a sag in voltage it takes about 3 seceonds for the receiver to

  • how does a spektrum radio system work? The receiver is not actually a receiver, its a tranceiver (receives as well as transmits signal). when you bind your radio to your receiver it sends the receiver a code that is unique to each radio. hince you can never loose control of your air craft even if someone is on the same channel as you are, and allows radios systems like futaba to use frequency hopping as apposed to locking to two channels like spektrum does.

  • running a seperate bec should solve the problem. you can also try using a power capaciter to prevent voltage sags (spektrum makes one). If you run a bec you do not have to run a seperate battery with it. just solder the wires in paralell on your power connector coming from your speed control.

  • 2.4ghz radio systems do not experience "lock out". that is exclusive to pcm radios systems only. they can however loose the link between the radio and the receiver if the voltage to the receiver drops below 3.7 volts. if you are powering your camera through the receiver you may be getting a voltage sag due to the fact that the bec on on your speed control cant handle the power the receiver is drawing. as the bec on the speed control heats up the voltage will drop as well as the amps.

  • buy a 10 amp orion voltage regulator and a 7.2 v lipo bat. and this should help with the brown out BORNTAFLY rcsuperhero

  • it is the camera

  • 1:25 that was cool

  • I am sure this was caused by the camera or something

  • spectrum receivers are VERY VERY sensitive with their powersource, and they always need a externl BEC.if not thats what happens

  • What does BEC stand for?

  • @happyhouse152 Battery Eliminator Circut

  • nice dude your camera spazzed out though

  • Why is everyone talking about a good save.I clearly see a heli on its side which is called a crash.Granted,he gathered it up pretty well and the crash could have been much worse but it is still a crash.

  • Man, that was just awesome taking the fact it had a lockout and was close to crashing, but you saved it. Nice job !!!

  • Jeez, you were quite a ways out there, are you sure you didnt just go out of range? This is exactly why I wont go 2.4, to many horror stories

  • thats just stupid

    rather keep 35Mhz and always have lockouts

    i know guys who have lock outs every day

    while i fly 2.4Ghz without problems

  • I would guess that the you are experiencing swamping. If the camera TX is to close to the heli RX it may cause swamping of the heli RX, that will say if the camera TX is at 2.4ghz. If you use 900mhz or 1.2ghz you will not have these problems.

  • if i had a lockout, and did save the heli, id call it a day ASAP!!!!

  • congrats for saving it!

  • i had a lock out with my DX6i on a unicorn wing. was only about 100 ft away. sevos went into down position and smash into the deck about 60 mph. split uni into 3 pieces. Spektrum isnt that good!

  • yea it is but you should have receiver satellites so that it can pick up signal from any direction

  • Awsome piloting skills bud. I do believe i would have left a little crater in the ground

  • I'm with TankDirt99 on this, it could be the Video TX messing with your radio?

    I'm using 5.8GHz here, no probs with 2.4GHz radios, 900MHz video works fine also.

    Steve

  • Heli FPV rulez;)

  • man ur a good pilot because that was a good save i would have crashed

  • great come back, good pilot

  • Wow, you got that up pretty high. Is there such a thing as auto rotation built into model helicopters?

  • yes

  • should have landed immediately after the first lock out... duh...

  • you landed the crash prety good

  • SWEET!! I've never been on an RC helicopter Crash! Sorry bought the crash too!

  • That kind of sounded like a Axe cp is it?

    Great flying though! Sorry about the crash :(

  • wow! amazing!

  • Yes Get the quick connect feature!! it reboots instantly!! and im guessing your lockouts are caused by the camera...2.4Ghz camera + 2.4 Ghz radio = not so good outcome..

  • I have been flying the trex 450 and hirobo sceadu on the Spectrum DX 7 and never had a glitch. Now flying the Hirobo Freaya 90 on the JR 9 (2.4). I will never even consider going back.

  • This is why i am dreading getting a 2.4ghz radio...

  • Dont because it was probabley the camera because did you see that the camera went all fuzzy at the lockout and before them.

    It may of been a 2.4 Ghz camera.

  • omg... nice fricken save... either way... nice durability test for the camera... -.-

  • Most of the problems with spectrum have been traced to either static discharge or power dip to the receiver. It takes 2-3 secons to recover after a power dip (like this vid!).

    There is a free by return software upgrade (quickconnect) to make it recover quicker from the power dip.

    for static, silicone spray on the tail belt and plastic gears.

  • last second save holy shit

  • i am definately not gonna go for spektrum while this problem exists

  • If you dont put a 2.4 Ghz camera near the receiver or anything else really near the receiver and dont use a low power battery this problem wont happen.

    Im going to use a DX7 on a jet but i will use a high power batt, receiver satellites and only record from the ground!

  • Damn good flying dude, one of the best I've seen on here with video. Good save:)

  • dam nice save the first time! sorry it crashed.

  • that was cool!

  • one of the coolest heli cams I've ever seen :D

    I'm getting a DX7 coming in about a week and a half so I hope nothing bad like that happens :s

  • was that supose to be a FPV blade stop auto?

  • Dam nice flying that could have been a complete write off.

  • cool video, nice save

  • Seriously, that was an amazing save. Flying a helicopter with no power is one thing, but no control at all is quite another. Just out of curiosity, is your video link on 2.4Ghz (same as DX7) or 900Mhz? I've not heard good things about trying to use 2.4Ghz RC control with 2.4Ghz video downlinks.

  • Thanks - I am using a 900MHz downlink to preven things like that from happening. The field was crowded that day and there were quite a few people out there with DX7's flying their planes and helicopters. I was also sitting under a tree which I'm sure reduced my range.

  • @Jumpjet101 HI... it was a very very nice recovery... but then just wondering... U had a chance to land, why didn't you? could have save even more money or not even spend a single dollar ^_^

  • wow u did an amazing job of saving that from that height and just a small bump at the end could have been a lot worse.

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