Inspiring video! The one thing I didn't see, was removal of the rosin flux after soldering. Rosin has some impedance when it solidifies and can change circuit characteristics and possibly add extra load to the transmitter. So right after the solder solidifies, wipe the joint off with a q-tip dipped in alcohol. 70% or 90% isopropyl alcohol from the drug store is fine. That removes the rosin the easiest since the solder joint is still warm. I would recommend using 63/37 solder over 60/40 for the fine soldering done in the rc world. Rosin core is more for large wires. Water soluble fluxes available in the 63/37 solders make cleanup so much easier and greatly reduce the risk of loading the circuit.
Peter is great on the show, I love the stuff he's bringing to Flite Test recently with more electronics and rockets! I think Peter needs to put aside a few nights practicing presentation though. He's often quite nervous on camera and his presentation of steps for complex things doesn't seem as polished and practiced as it could be. With a bit of practice though, I can see him bringing back what I was missing since David has left! Thanks for bringing him on the show more, I've been enjoying all the DIY electronics stuff!
Hi I'm so glade you guys did this video! That was my intro to FPV Flying! First I had this set up in a Hubsan X4, not so happy with the Hubsan. But now I've got it strapped to my trusty old Hobbyking Mini Swift, and it's a BLAST! Damn thats fun, and I got about 500-600 meter out of it, with the Wire Antenna AND just a cheap as chips RX with the standart Antenna on it... Damn good fun! I just the 5v Version as well, due to the specs it's quite well suited for a 1S set up. As a Cam I used a cheap Hobbyking Cam. I've you guys are back in Germany again, I would love to meet and fly with you!!
Seriously guys way too cool thanks for posting all the links on how to do it, i had a terrible time sourcing 3 V components, gave up had to work, thanks and great videos of FPV
Looks like fun...and here are a couple of hints from an old guy on soldering detailed work: Find and use small gauge 63/37 (not 60/40) rosin core solder, and clamp the workpiece lightly in a Panavise or similar with rubber pads on the jaws. Add a worklight and maybe a magnifier and you're good to go...
You can fix the camera lens adjustment with liquid electric tape. Great stuff! Not to mention sealing every connection and securing connectors to each other and or to the board or airframe.
Shout out to peter. I met ya down in panama city beach . I was doing fire inspections at a hotel and walk into a room filled with rc lol. I was like I need to have out with these guys . Nice build man I'm gona try this
ha you guys saved me a lot of freakin money I was just about to go trade in my Ares q 130 for a Ares FPV that would have cost me another $200 thanks again guys
@ 9:25 Josh justifiably corrects Peter to NOT USE CA in this application. There is a VERY good chance of fogging the sensor, the inside of the lens or the outside of the lens. And if you ever want to change lenses you're going to be pretty much out of luck.
Hey amazing people! This needs a refresh. I was all set to throw down the clams for this but parts have been discontinued and now there is even a smaller camera!!! Can you refresh this project?
Very nice job :) It's a pretty cool way for saving a lot of money! Very easy, just some soldering skills are required but nothing impossible. 5 stars video guys, Peter is definitely the man of the week ;) Thanks for sharing
When you file off the tip the problem is not corrosion. What happens in the outer metal does not form an amalgam with the solder but the copper does. so the copper slowly washes away with each touch to new solder.
Awesome ... making one asap.. this is perfect for smaller projects where rabge issnt much of an issue.. I'll still stick to a small clover.. but its great Pieter!!!
Great video! Are there any videos going over the receiver setup? Looks pretty nifty. I definitely would use that setup for a rover project I am working on ...
Great video as usual guys. I have a motor question, I want to build a large quad and am very confused about motor choice what is a good motor to list a quad with about a 20 inch motor to motor?
Have you ever tried to put two cams on a plane with the right (or decreased for more immersion) eye distance for a 3D view? Are there even goggles that allow to easily show different video for each eye?
That was great guys. Much more fun sourcing and making something yourself, rather than buying it from a shop. Can it be used without goggles on a small 7" screen? Kia ora Jon
Great job guys! By the way, this DOES work with BOSCAM receivers (ie. Skyzone goggles) as well.... I was watching a few of Josh's flights while at Horizon Indoor. ;-) I think the base Fatshark cameras start on band 4 channel 1 (or maybe it's D-1). Just hunt, and you'll find it. Cheers, J
Btw thanks for the video. If your plane can carry a little more weight and uses at least 2S, then I recommend using a Fatshark 600tvl CMOS camera in combination with a aomway mini 200mw transmitter. The Fatshark CMOS camera is the best CMOS camera I've used. The rest produce awful images (poor contrast and muddy colours). The aomway mini transmitter is almost as small as the diy module and comes with a SMA connector where you can attach a cloverleaf antenna. There are 2 sizes of the 200mw 5.8Ghz aomway VTX: the mini one is the one without the big black molex connectors. Banggood sells them. Search for "AOMWAY FPV 5.8Ghz 200mW 32CH Wireless AV Transmitter Module"
I like this tiny FPV camera, I'll probably build one once I get a copter capable of carrying it. How about a DIY micro gimbal to mount this to? Would be awesome to have a tiny, mechanically stabilized FPV camera which I built myself.
omfg no way i have been waiting on this, or a similar review for ages :D I have just bought the Spektrum Ultra Micro FPV Camera and vTX kit for 99 bucks! Can't wait for it to arrive and put on my T-28 UM
Loved the vid guys. Great job of cookbook engineering. It is also a great lesson when trying to accomplish anything check out what other people have done before. You might not want to do it the same way but you will certainly learn a lot and also get some great ideas along the way. Pretty good job of soldering to. Most times when I see soldering done on You Tube it ain't so great.
Rich-notice that Peter avoided heat-sens. IC's and used 2" leads to wick away iron heat. It looks quite simple, but a lot of thot went into building this lash-up (he should've mentioned a max iron wattage, tho; say, 37). JL
Bit charger plane vtx, LOL! Awesome to see, there are pcb vtx boards on ebay around $24. Heat sink on the case helps they do get hot. Digikey is great for parts like dip switches and led switches. Unplug power to ccd when taking lens off to avoid sensor burn too.
Why do you have one Cloverleaf Omni Antenna and one "normal" antenna on there? Thought the Omni outperforms the "normal" one? Why not go for two Omni in a 90° to each other so the two "donuts" get you an nearly all around and up and down reception? :)
I found the easiest way to solder this Boscam vtx, is to strip the wires long enough, then go ahead and twist wires , lay them down into the pre-soldered pads, streched , then solder with good tin , dont pre-solder the wires as it wont do any good ;-) hf flying ;-) , greetings !
By the way, if you want to use this setup for a micro quad ( like the hubsan etc .. ) forget the dip switch it will give u +- 35 seconds extra flight time. Peter, good job ! but i would not prefer to use hot glue to attach the camera to the vtx's heat sink, as it might melt in the summer because of the extra heat produced by this vtx ( it gets hot ), instead if u solder a micro cloverleaf antenne its a good idea to use hotglue to glue the camera to the boom ( coax wire ) of the antenna. as the coaxial cable doesnt produce any heat at all. Happy Flying ;-)
Thanks again for that, second time I watched it,,, I am about to do one of mine tomorrow,, good video shame you did not put it to sound,, Thanks again, Pete
14wacawaca Have I lost the thread there ,,,What parts and what transmitter. I think this is not the video I wrote or wanted to comment on, sorry about that.. . Cheers, pete
+cheeriomartinez Soldering tips are nickel plated so that the tip doesn't oxidize when it gets so hot. Use a damp sponge to wipe the tip off. A damp paper towel works in a pinch.
To step it up, you could mount a gyro on the goggle and have 2 servos control the cameras for a virtual reality experience. I have seen someone do this with 1 camera and arduino electronics..
Another great video! I'd love to see you guys review the Blade 200qx. I've had mine for a few months now and I love it! It's pretty fast, very agile and It's perfect with a Mobius mounted on it, but I would really like to try out some FPV with it. I would really like to see what you guys think.
Great Video. Looks good. I just started flying FPV with the Nano QX and have traveled around the house and outside in the yard. I believe the QX FPV only has a 25mW transmitter so 200 Mw would be a significant improvement on range I would think. I wonder how this would work on a Hubsan X4. I havent seen any info on others modding that quad, but I am sure they are out there and that it has been done. The X4 seems like a great platform as it can lift quite a bit and I love the 10 minute flight times with the 500 mAh packs. Any thoughts on this?
Amazing video I managed to me one for under $20 with parts from Banggood the $11 micro camera is amazing way better than my $60 fpv hobby camera with wide angled lens plus the banggood camera already comes focused and with a 170 degree camera which it isn't it's about 130 degrees in actual fact, amazing little thing which has a range of 800m plus
it is amazing how far the technology has come since this video was made. Now you can get something similar (fully assembled) for around $20
Hey Nils, can you recommend a more current video link for this info? Thanx.
@@thomream1888 ruclips.net/video/811IZ8GLHDw/видео.html
@@thomream1888 look up "fpv aio camera" and you can find some. I dont know which ones are good and which are bad, but they are cheap.
was just about to say the same thing lol its so cheap now lol
@@headon6139 yes
You guys should open up a store where we can buy everything in a bundle. Keep up the good work.
Deadset they have a store now
ok
Deadset just go to flitetest.com and there is a store button at the top of the page
***** thanks man
Inspiring video! The one thing I didn't see, was removal of the rosin flux after soldering. Rosin has some impedance when it solidifies and can change circuit characteristics and possibly add extra load to the transmitter. So right after the solder solidifies, wipe the joint off with a q-tip dipped in alcohol. 70% or 90% isopropyl alcohol from the drug store is fine. That removes the rosin the easiest since the solder joint is still warm. I would recommend using 63/37 solder over 60/40 for the fine soldering done in the rc world. Rosin core is more for large wires. Water soluble fluxes available in the 63/37 solders make cleanup so much easier and greatly reduce the risk of loading the circuit.
+JKFlorida Glad to help !
Desert Mike DIY mmmmmmp
Peter is great on the show, I love the stuff he's bringing to Flite Test recently with more electronics and rockets! I think Peter needs to put aside a few nights practicing presentation though. He's often quite nervous on camera and his presentation of steps for complex things doesn't seem as polished and practiced as it could be. With a bit of practice though, I can see him bringing back what I was missing since David has left! Thanks for bringing him on the show more, I've been enjoying all the DIY electronics stuff!
Hi
I'm so glade you guys did this video!
That was my intro to FPV Flying!
First I had this set up in a Hubsan X4, not so happy with the Hubsan.
But now I've got it strapped to my trusty old Hobbyking Mini Swift, and it's a BLAST!
Damn thats fun, and I got about 500-600 meter out of it, with the Wire Antenna AND just a cheap as chips RX with the standart Antenna on it...
Damn good fun!
I just the 5v Version as well, due to the specs it's quite well suited for a 1S set up.
As a Cam I used a cheap Hobbyking Cam.
I've you guys are back in Germany again, I would love to meet and fly with you!!
Seriously guys way too cool thanks for posting all the links on how to do it, i had a terrible time sourcing 3 V components, gave up had to work, thanks and great videos of FPV
Looks like fun...and here are a couple of hints from an old guy on soldering detailed work:
Find and use small gauge 63/37 (not 60/40) rosin core solder, and clamp the workpiece lightly in a Panavise or similar with rubber pads on the jaws.
Add a worklight and maybe a magnifier and you're good to go...
Still a great video to learn from. The basics remain viable. Thanks.
Nice job Peter and explained very simply, your a great addition to Flite Test.
It's amazing to see how far this technology has advanced in such a short time.
please continue explaining the electronics in the RC world, how to solder circuit boards, properly wiring power systems. all this good stuff.
You can fix the camera lens adjustment with liquid electric tape. Great stuff! Not to mention sealing every connection and securing connectors to each other and or to the board or airframe.
Very cool and unintimidating project Peter. Thanks for putting it together.
FPV is impressive. I have an idea for you that would make it even cooler. Can you make a night vision FPV setup? That would be so cool!
Making a micro quad for in the house with a Hubsan X4 board, cheap frame, and some brushed motors. Can't wait to add FPV to it! Thanks FliteTest.
We need more videos like this.
Shout out to peter. I met ya down in panama city beach . I was doing fire inspections at a hotel and walk into a room filled with rc lol. I was like I need to have out with these guys . Nice build man I'm gona try this
ha you guys saved me a lot of freakin money I was just about to go trade in my Ares q 130 for a Ares FPV that would have cost me another $200 thanks again guys
Thanks for posting this up guys, it gives me confidence to try putting one together myself
If you run the 3.3v vtx with a 1s, use a 1n4001 diode in series to drop the voltage by 1/3 of a volt to help it from burning out.
@ 9:25 Josh justifiably corrects Peter to NOT USE CA in this application. There is a VERY good chance of fogging the sensor, the inside of the lens or the outside of the lens. And if you ever want to change lenses you're going to be pretty much out of luck.
Very good tutorial! Man those transmitters got small!
Thanks for the help for Geting into the fpv part of the hobby
Great job Peter & Josh.
Awesome Peter. Definitely would like to make one of these. 2 thumbs way way way up
Hey amazing people! This needs a refresh. I was all set to throw down the clams for this but parts have been discontinued and now there is even a smaller camera!!! Can you refresh this project?
Corey McGuire. wear is it wear can i follow you on
nash daniels you can follow my you tube channel. it has some robotics on it. not very rc
That looks great!!! So tiny. You can put that on ANYTHING!!!
If you use a GoPro by water i recommend putting the clear case on it...
Very nice job :)
It's a pretty cool way for saving a lot of money! Very easy, just some soldering skills are required but nothing impossible.
5 stars video guys, Peter is definitely the man of the week ;)
Thanks for sharing
RIP RadioShack.
Great video!!! I want to see you guys land a quadcopter on a quadcopter on a quadcopter, reverse of what you did for the Amazon drone delivery video.
Yeah! That would actually be really cool if you guys did that!
THAT WOULD BE AWESOME!!!
Hahaha
Stephenson Airplanes run groep
Reproducibility
யிஹஃகஃஹஜ்ஜஹியூ வபியூக்ப்வ
When you file off the tip the problem is not corrosion. What happens in the outer metal does not form an amalgam with the solder but the copper does. so the copper slowly washes away with each touch to new solder.
Great video, I made mine about 3 years ago and it still sends signal fine with about 15mins run time.
We miss David but Peter does a wonderful job filling his shoes
Awesome ... making one asap.. this is perfect for smaller projects where rabge issnt much of an issue.. I'll still stick to a small clover.. but its great Pieter!!!
Great video! Are there any videos going over the receiver setup? Looks pretty nifty. I definitely would use that setup for a rover project I am working on ...
I like the idea of that case as well as this little transmitter. Thanks for the video!
your teaching videos are the best, more, please!
Definitely going on my project list after my 100w led torch :)
how many lumens you plan to get out of it?
planing on making a second sun?
Jeremy Brock not sure to be honest as i dont have anything to measure it but lets just say its bright :)
tyler roberts haha its not far from it
TheLukey21 maybe you should make it with infrared LEDs and combine it with this FPV-thingy to make night flights =)
That's complicated,but thanks for talking about the different 5.8 ,had no idea that they are different .
Great video as usual guys. I have a motor question, I want to build a large quad and am very confused about motor choice what is a good motor to list a quad with about a 20 inch motor to motor?
The pre-built camera+ transmitter from horizon costs the same as the camera you have linked on Flitetest.com
This video is over a year old. Of course things are cheaper now.
Perfect for the upcoming revolution in FPV Control Line Flying.
That is totally bad ass. I might have to incorporate some of those mini cameras in my helicarrier using a 3 channel camera switch
Have you ever tried to put two cams on a plane with the right (or decreased for more immersion) eye distance for a 3D view? Are there even goggles that allow to easily show different video for each eye?
Oculous would do 3d i think.
Yes, but that would probably require quite some signal converting etc.
Zeiss cinemizer 3d, i think
DerClaudius www.banggood.com/Skyzone-SKY02-5_8G-32CH-AIO-3D-FPV-Goggles-Headset-Video-Glasses-p-964134.html
thx
you could also use the 32 channel stuff then it is compatible with all of the 5.8 systems
Nice video, good work peter
That was great guys. Much more fun sourcing and making something yourself, rather than buying it from a shop. Can it be used without goggles on a small 7" screen? Kia ora Jon
Can you do a video on how you set up your FPV box?
Josh, keep your head up! Looks like you're pointing your Fatshark's cloverleaf dead spot *right* at you model ;)
Great job guys!
By the way, this DOES work with BOSCAM receivers (ie. Skyzone goggles) as well.... I was watching a few of Josh's flights while at Horizon Indoor. ;-) I think the base Fatshark cameras start on band 4 channel 1 (or maybe it's D-1). Just hunt, and you'll find it.
Cheers,
J
Btw thanks for the video.
If your plane can carry a little more weight and uses at least 2S, then I recommend using a Fatshark 600tvl CMOS camera in combination with a aomway mini 200mw transmitter.
The Fatshark CMOS camera is the best CMOS camera I've used. The rest produce awful images (poor contrast and muddy colours).
The aomway mini transmitter is almost as small as the diy module and comes with a SMA connector where you can attach a cloverleaf antenna.
There are 2 sizes of the 200mw 5.8Ghz aomway VTX: the mini one is the one without the big black molex connectors. Banggood sells them. Search for
"AOMWAY FPV 5.8Ghz 200mW 32CH Wireless AV Transmitter Module"
grate job guys i never use to miss any of ur videos !!
Range can be increased by providing more current (A) to the transmitter.
I like this tiny FPV camera, I'll probably build one once I get a copter capable of carrying it. How about a DIY micro gimbal to mount this to? Would be awesome to have a tiny, mechanically stabilized FPV camera which I built myself.
the 3way switchs are called DIL switchs , aussie jaycar part number SM1013
Good on ya mate!! Thanks for the info :)
Yep, thanks mate! he he
Get a helpings hand from radioshack or so, much easier when soldering
I would use a smaller dip switch to lower the weight maximum :)
The ones simular to the ones that are mounted to the fatshark vtx's works great.
You mention make sure to get a compatible frequency often in the video. By buying a 32 channel 5.8 reciever all your bases are covered correct?
I meet Josh at the Seagate Expo! All I can say is he is a really great guy!
That 1 gram camera actually weights closer to 2 grams and if you are planning to use this on a micro quad every little bit adds up.
omfg no way i have been waiting on this, or a similar review for ages :D
I have just bought the Spektrum Ultra Micro FPV Camera and vTX kit for 99 bucks! Can't wait for it to arrive and put on my T-28 UM
This is one of my favorite videos. Thanks guys.
Great video. What do you use for the receiver? Can you show your receiver setup? Did you build that as well?
Loved the vid guys. Great job of cookbook engineering. It is also a great lesson when trying to accomplish anything check out what other people have done before. You might not want to do it the same way but you will certainly learn a lot and also get some great ideas along the way. Pretty good job of soldering to. Most times when I see soldering done on You Tube it ain't so great.
Rich-notice that Peter avoided heat-sens. IC's and used 2" leads to wick away
iron heat. It looks quite simple, but a lot of thot went into building this lash-up
(he should've mentioned a max iron wattage, tho; say, 37). JL
Bit charger plane vtx, LOL! Awesome to see, there are pcb vtx boards on ebay around $24. Heat sink on the case helps they do get hot.
Digikey is great for parts like dip switches and led switches.
Unplug power to ccd when taking lens off to avoid sensor burn too.
It would be amazing if you made a mini versa wing to use this fpv setup on!
OH THIS IS AWESOME, I HAVE BEEN LOOKING QUIT A WHILE FOR THIS SOLUTION!
Liked and subbed.
Do you have a video on how you made your base station with the video RX and RC control?
At 11:27 I'd love to see a video on that custom box.
Why do you have one Cloverleaf Omni Antenna and one "normal" antenna on there? Thought the Omni outperforms the "normal" one? Why not go for two Omni in a 90° to each other so the two "donuts" get you an nearly all around and up and down reception? :)
I found the easiest way to solder this Boscam vtx, is to strip the wires long enough, then go ahead and twist wires , lay them down into the pre-soldered pads, streched , then solder with good tin , dont pre-solder the wires as it wont do any good ;-) hf flying ;-) , greetings !
By the way, if you want to use this setup for a micro quad ( like the hubsan etc .. ) forget the dip switch it will give u +- 35 seconds extra flight time.
Peter, good job ! but i would not prefer to use hot glue to attach the camera to the vtx's heat sink, as it might melt in the summer because of the extra heat produced by this vtx ( it gets hot ),
instead if u solder a micro cloverleaf antenne its a good idea to use hotglue to glue the camera to the boom ( coax wire ) of the antenna. as the coaxial cable doesnt produce any heat at all.
Happy Flying ;-)
Thanks again for that, second time I watched it,,, I am about to do one of mine tomorrow,, good video shame you did not put it to sound,, Thanks again, Pete
Just to say i did mine no trouble this afternoon, I did however not turn it inside out I just put it on as it was ,, Cheers, Pete
pepersorte hi pepersorte is there any way you can send me the links where you bought the parts and a photo of your new trasmiter
thanks
14wacawaca Have I lost the thread there ,,,What parts and what transmitter. I think this is not the video I wrote or wanted to comment on, sorry about that.. . Cheers, pete
incredible ! do you have millimeters dimensions ? it should fit in an n-scale train too !
PLEASE get the mini Ft Cruiser out in time for christmas!!! FPV (possibly long range) with that would be awesome!
Also, is there a cloverleaf antenae I could use instead?
Any chance of an updated version of this, maybe with cheaper components?
Hi
can you also post video for building Receiver same or similar one which you used to test FPV camera or provide and reference video links
"you dont want to file the solder tip..." Puts down sandpaper and solder tip....... well shoot.
+cheeriomartinez
I ground one to a fine point many years ago....still use it. Have to clean and tin it more often than normal though.
+Haywood Jablomy you can change the tip
+THUNDERBOLT
uhh....yeah...so?
+Haywood Jablomy yeah mine is all wonky now. I could buy another one but.......eh
+cheeriomartinez Soldering tips are nickel plated so that the tip doesn't oxidize when it gets so hot. Use a damp sponge to wipe the tip off. A damp paper towel works in a pinch.
Has anyone attached 2 of these for 3d viewing? If you can see depth you would get a lot more control I would think.
+Anon Mason running on two channels and somehow view them on each side of an fpv goggle.... thats an amazing idea!
+Håvard .EF
Exactly what I was thinking.
To step it up, you could mount a gyro on the goggle and have 2 servos control the cameras for a virtual reality experience. I have seen someone do this with 1 camera and arduino electronics..
There is actually a product called a nerdcam that has 2 and processes them so they can just be viewed with regular goggles
as this part for camera and transmitter build, is there any video for receiver build?
Great video. Is there a way to set this up to record on a micro card?
Thanks
May I use this system replacing the camera for an RCA plug and so transmit video signal from a DVD?
Fantastic work guys.
nice video thanks for the sharing,what can i use as receiver to view the video ?
Mouser has the dip switches and MUCH MUCH more.
Nice vid. I would really like to get into this. So how much should I pay for a receiver for this setup?
Super Great DIY - Kudos to Peter! Can I just purchase one from you instead?
Hi guys....awesome video.....how far can you get the signal from???
Awesome! Can I use a PAL camera instead of a NTSC camera? The PAL is the only one in stock. Thanks guys!
Nice job - clearly explained.
is it also possible to attach a better camera? keep up the good work guys! :)
what are the measurements for the antenna?
thanks
Ken
Peter I thought this was a great video. Very informative and something that looks really fun to build. Thanks again FT for sharing.
Another great video! I'd love to see you guys review the Blade 200qx. I've had mine for a few months now and I love it! It's pretty fast, very agile and It's perfect with a Mobius mounted on it, but I would really like to try out some FPV with it. I would really like to see what you guys think.
very kool. where do i get the receiver thingy with the screen or goggles?
weird looking back at those now you can get the micro all in one fpv @200mw for 15$
Hey EC, can you recommend a more current (9-2018) video link for this info? Thanx.
Awesome episode, really missed info like this on the channel. Great design, thanks for sharing.
Great Video. Looks good. I just started flying FPV with the Nano QX and have traveled around the house and outside in the yard. I believe the QX FPV only has a 25mW transmitter so 200 Mw would be a significant improvement on range I would think. I wonder how this would work on a Hubsan X4. I havent seen any info on others modding that quad, but I am sure they are out there and that it has been done. The X4 seems like a great platform as it can lift quite a bit and I love the 10 minute flight times with the 500 mAh packs. Any thoughts on this?
Maybe a dumb question, but could you put 2 antennas at an angle and cover the problem with the signal breaking when you turn?
Amazing video I managed to me one for under $20 with parts from Banggood the $11 micro camera is amazing way better than my $60 fpv hobby camera with wide angled lens plus the banggood camera already comes focused and with a 170 degree camera which it isn't it's about 130 degrees in actual fact, amazing little thing which has a range of 800m plus