More FPV: Chainlink UHF has arrived and works with Spektrum DX8 PPM. FY-21AP BEVRC 1.3GHZ VIDEO

[GeneticallySuperior1]

I really appreciate your upload, as I am very new to this FPV technology. I was told that my newly purchased DX8 would be very dangerous for long range FPV, I hope you have disproved this very popular belief.

[carlocivicsi]

the video was blurry when you where showing the soldered connections. how do they go again? thanks great video.

[rodher12]

hello man, me again,, i want to now, can i use this radio "fs-th9x 2.4ghz" with chainlink??

h t t p : //w w w(dot)nitroplanes(dot)com/79p-­th9x-r9b-9channel-radio.html

[hairlesshippy]

@rodher12 I am sorry to say I have no idea. you would first need to research if that transmitter had a PPM signal you can tap. I think thats the most important question. If it has a trainer, it probably has it. the second thing to consider is how strong that signal is. I hear the chainlink needs a certain signal strength to be reliable. If you have both of those, you should be good to go.

[rodher12]

Hello mate..i want to know if the "ppm" and "trainer port" are the same thing? Because my radio has the same cable (tip) the one that i use in my pc simulator..regards and sorry about my english..:)

[hairlesshippy]

@rodher12 PPM is the signal that the trainer port provides when something is switched or moved on the transmitter. If you have something that can read that PPM, you can use the transmitter to send that signal through the port rather than through its own 2.4ghz frequency. This allows you to hook the transmitter up to a simulator or in my case an external long distance transmitter, the chainlink. I think PPM is different for different transmitters so if you could find the signal, you canuseit.

[don021980]

correct me if i'm wrong, normally we transmit 2.4ghz on our radios.when we install the chainlink we will transmit mhz? then we can use the 2.4ghz fpv set up now?because on what i've read on other sites, it's no good to match a 2.4ghz rc tx to 2.4ghz fpv gear. and one more, will the chainlink work on futaba 7c(2.4ghz)?waiting for your reply, thanks and more power to you.

[hairlesshippy]

@don021980 I am using 1.3ghz for fpv video, 430mhz (around) for chainlink and control of the plane. although I use my dx8 to control the chainlink, I am not using 2.4ghz for fpv. I hope this makes sense .. Thanks for commenting.

[crawleroz1]

Can you buy such a cable somewhere?

[hairlesshippy]

@crawleroz1 probably cant buy it, just make it.. not too hard.. Thanks.

[ritchiebarber]

Thanks man. I ordered the EZ uhf system yesterday and must have spent 8 hours looking for info on how to connect it to a dx6i, seems this should work a treat.

[Ollie101100]

hey this was a very helpful video! when using the chainlink, can i set it up so that i have the main flight battery connected to the esc then to the reciever and have the fpv equipment on a seperate circuit, or must i wire it up as shown in your vids with the bec?

[hairlesshippy]

@Ollie101100 you probably could.. I think the main reason why its split is because I use a 4cell for the flight battery which wouldnt work with FPV equipment. If you did 3cell for flight battery, you could hook everything up with just one. hope this helps.

[iFlyFPV]

Use a multimeter dude

[HighInTheSkyRC]

hi hairlesshippy, thanks for the great video. I was wandering how you can actually tell which wire is for which part of the jack? also, can the chainlink just run off of the tx power?

[fardaad]

Hi,

I wonder you can help me with this, I got the exact same setup as yours, but one thing I don't understand; DSM receivers get their power from the ESC throttle, where the Chainlink receiver get its power? I see in your video that the ESC is not connected but another battery is there that is not clear what it is connected to. I would really appreciate if you could clear this up for me.

Cheers... and thanks for the video...

[hairlesshippy]

@fardaad In my setup, the Chainlink gets its power from the AV battery via a castle 10amp BEC. The only thing that runs from the 4 cell 6000mah is the main motor and ESC. The AV equipment and chainlink get power from the second 3 amp 4500mah battery. I guess you can get the receiver power from the main motor battery but maybe I think the battery for the motor/esc is very important and takes a lot of juice... where as the AV stuff and receiver may not. it can get power from either battery.

[fardaad]

@hairlesshippy, Thanks for the quick reply,

Thanks for the advice, I will do the same; but which port on the receiver I should connect the power to? Any of the channels ports will do?

[hairlesshippy]

@fardaad check out my video named "More FPV: All electronics are here and working. FY-21AP, CYCLOPS OSD, BEVRC 1.3GHZ VIDEO ".. the ESC goes into the throttle port on receiver but MAKE SURE you disconnect the center red wire. Then plug the power from the BEC into any other non used port.. That should do it! Let me know if you need any more help. if 2 power are connected to same receiver it will go "BOOM"..

[basadia]

Thanks for the video, I have the DX6I and followed your instructions and had it working in about 5 minutes flat. Hope the Chainlink fixes my range issues.

cheers

Keith

[hairlesshippy]

@basadia Glad I could help out and thanks for confirming that it will also work in a DX6I transmitter. more videos to come!!

[basadia]

@hairlesshippy

Funnily enough just like you I trashed my SW fuse and ordered another two as replacement from BEV. You ever considered running diversity with Eagletree Eagleeyes? Mine should be here any day, should help with those video drop outs.

cheers

[hairlesshippy]

@basadia how are the range issues with the chainlink?

[hairlesshippy]

did the chainlink fix the range issues? do you have any videos?

[diasyuri]

Just one doubt.

1. If you are using one battery for the CL and the original battery in the DX8, why is the ground (-) from the Lipo battery used for the CL connected to the DX8 trainer port ?

I liked your video, one of the first about DX8/CL. I´m thinking about getting one CL and had no ideia how it would behave with my DX8.

Thanks

[hairlesshippy]

@diasyuri good question.. answer is I don't know why.. I connected without connecting the grounds and it didn't work.. I found somewhere online that you need to connect the grounds together.. Once I did that, it worked!! I did a maiden flight video.. have you seen it? chainlink worked perfectly!!

[diasyuri]

@hairlesshippy thanks for your reply. I´ve saw your maiden flight video, but have you made a range test yet ? that´s the most important part. Will the CL perform like BEVRC says ? Have you even attempted a ground range test ?

Hope you fix the Skywalker soon.

[sfw4sfw]

@hairlesshippy You need a 'common' ground otherwise the ppm level isn't stable towards the CL powersupply.

Nice vid! didn't know it could be done on the Spektrums... Am defenately gonna get a CL on my DX8 aswell!

Tnx!

[helidaho]

Great video, very informative. Thanks for posting. I too have a Dx8 radio that I've been wanting to use with a UHF system but have wondered how it might work. I've also been looking at the chain link system as well. Thanks again for posting this! Can't wait to see your results.

[hairlesshippy]

@helidaho Thanks for the compliment. I should have a maiden flight for it sometime soon.. keep watching!!

[vazza69]

By the way i tride to finde the ppm signal on mu st model st6df but now luck and now luck finding any advice on the nett :(

[vazza69]

Wooh grate you got it to work! :) I realy whanna know or see what you did inside the dx8?? And fi this is the same for any other spektrum transmitter?

What kinde of rang is ther on the stock dx8???

You see im trying to finde out now what tx/rx systam to get. I allrady have a dx3s so i kinda like the idea of sticking to spektrum :P

Hope u can give me som ideas:P

Cant whayt for your setup to fly!! :D

[hairlesshippy]

@vazza69 Thanks for the post.. I did not open the DX8 and just plugged into the trainer port. The only caution I have is that someone mensioned that there is not enough ppm power from the trainer port and it needs to be taken from inside the radio. Mine seems to work fine but they may have changed something going to DX8. I still need to put a meter on PPM trainer port and see what type of volts its showing.. Flight videos coming soon!!

[youtubuzr]

Good overview, thanks for posting. I like the beginning part, it reminds me of The Man With Two Brains: "Get that cat outta here!"

[alishanmao]

I would like to make a correction here. The channel assignment you described on Chainlink Rx. Kindly post an annotation there that its for the DX or Spektrum / JR Radios, not for CL Rx. If you use Futaba Like I do with CL Rx, then Ch 1 is Aileron, Ch 2 is elevator, Ch 3 is throttle and Ch 4 is rudder, Channel 5, 6 and so on can be as per User radio assignment not particularly for flaps or FY system.

[hairlesshippy]

@alishanmao Thanks for the correction Ali. So it depends on the transmitter you are using as to the pinout on the Chainlink Receiver. It is different between spektrum/JR and Futaba so the channel order will be different.

[alishanmao]

Hey is that my cat? what is she doing in your video hahaha

[nevillewood1]

Hey man, i'm from the uk, i just last night bought the chain link uhf 30km system with the 1/2 wavelength antenna, i was wondering where the video reciever comes into the system, you explained the rc transmitter very well however i do not understand where my video transmitter camera will go into the chainlink plane side thing, and where the video reciever will go into the box thing.

sorry about this.

Thanks in advance

[hairlesshippy]

@nevillewood1 chainlink is just for controlling the airplane. It basically just puts you on a different better frequency and has nothing to do with the FPV video system. check out my other FPV videos where it is explained a little better. chainlink is transmitter / receiver for plane flying.. the video transmitter / receiver is used to transmit/receive video.  Hope this helps.Thanks for posting!!

[Jaryd107]

thumbs up....cant wait to see a video of when you fly it around.

[kangsterizer]

Can you measure the voltage going out of the trainer port?

One issue with for example the DX7 is that the trainer port is unreliable and has low voltage. That's why people tap inside the radio itself.

The DX8 might not have anything to tap inside unfortunately, but maybe the trainer port outputs a stronger voltage.

[hairlesshippy]

@kangsterizer I can try to get voltage. what happens and how often do you experience the unreliable signal? Does it initially work and then not work after time? seems to work good the way it is.. Thanks for posting!!