Posts: 8 Threads: 2 Likes Received: 0 in 0 posts Likes Given: 3 Joined: Sep 2016 Reputation: 0 hi, I'm looking for some advice totally new to this, did some research, still have some questions For the gear specified below, my questions are: 1. Am I forgetting something? Is everything compatible? 2. On what component should I best spent a little bit more to have the most improvement in the image/range? 3. Are there better components for the same or slightly higher price? 4. What range could I expect? 5. Is there anything I should know of the format it can transmit? E.g. let’s say I’m recording 1080p HD on the camera itself, and I want to transmit 800*480 pix (to amount of pixels of my monitor), is this possible? Is there a limit to av out in term of resolution or frame rate? I made this list of components to build my fpv system: € 13.46 € 30.74 € 4.15 € 63.27 In addition: I own a gitup git2 13g lens camera (AV and RAW output) and a walkera g-2d gimbal mounted under a custum build drone. My transmitter for flight control (spektrum dx6i) works on 2.4 Ghz, so I guess I will have to go for a 5.8 Ghz video transmitter system. I guess I need: screen because it's cheaper than goggles and I can still see the drone in the air (just my preference) 5.8 Ghzvideo transmitter/receiver some av out cables with micro/mini usb power connector two good antennas, both probably Circular Polarized Omni Directional Antennas for the 5.8 Ghz frequency. Apparently antennas have a huge impact on your range and quality Thanks for the recommendations! babi • Posts: 918 Threads: 83 Likes Received: 533 in 271 posts Likes Given: 498 Joined: Jan 2016 Reputation: 30 The Antenna you have selected are mismatched to the VTX, the VTX is SMA, and your antenna is RPSMA. need to get the blue aomway ones for SMA. You will not be able to transmit HD video all that well, if at all through a standard 5.8ghz VTX. Posts: 947 Threads: 66 Likes Received: 350 in 248 posts Likes Given: 164 Joined: Apr 2016 Reputation: 34 If you are looking for range, you should probably look for a vtx with 200mw or 600mw. 25mw is okay in small fields, but if there are Som bushes or whatever in the way, the signal gets quite degraded when running 25mw. • Posts: 195 Threads: 8 Likes Received: 86 in 54 posts Likes Given: 79 Joined: Aug 2016 Reputation: 6 +1 that you should look for a more powerful VTX. There's one from eachine that has switchable power output between 25/200/600mW and builtin mic for a good price: link For the screen, have you seen the Eachine EV800? They're a bit more expensive but it can be converted between screen and goggles: Link I have a screen I used when learning FPV and now it's just home getting dust because I prefer the goggles. • Posts: 947 Threads: 66 Likes Received: 350 in 248 posts Likes Given: 164 Joined: Apr 2016 Reputation: 34 (15-Sep-2016, 09:28 AM)tozes Wrote: +1 that you should look for a more powerful VTX. There's one from eachine that has switchable power output between 25/200/600mW and builtin mic for a good price: link For the screen, have you seen the Eachine EV800? They're a bit more expensive but it can be converted between screen and goggles: Link I have a screen I used when learning FPV and now it's just home getting dust because I prefer the goggles. I got the eachine you linked to and it works well. It is nice to have the ability to easily switch output power and a mic. One thing that is also pretty neat is that it doesn't start transmitting untill you double click the output power button. This way you are able to power up your quad and change channels without interfering with others • Posts: 8 Threads: 2 Likes Received: 0 in 0 posts Likes Given: 3 Joined: Sep 2016 Reputation: 0 15-Sep-2016, 12:41 PM (This post was last modified: 15-Sep-2016, 12:42 PM by babipsylon.) (15-Sep-2016, 09:28 AM)tozes Wrote: +1 that you should look for a more powerful VTX. There's one from eachine that has switchable power output between 25/200/600mW and builtin mic for a good price: link For the screen, have you seen the Eachine EV800? They're a bit more expensive but it can be converted between screen and goggles: Link I have a screen I used when learning FPV and now it's just home getting dust because I prefer the goggles. hi Tozes Thx for the tips. The EV800 kind of looks cool. Is it useful as a screen or rather small? And how do you guys attach it to the transmitter? Regarding the VTX: 25mW is the maximum allowed in Belgium. I heard of some people who got their purchase confiscated at the border, if they order from outside the EU. I guess it depends on luck. (15-Sep-2016, 09:52 AM)oyvinla Wrote: I got the eachine you linked to and it works well. It is nice to have the ability to easily switch output power and a mic. One thing that is also pretty neat is that it doesn't start transmitting untill you double click the output power button. This way you are able to power up your quad and change channels without interfering with others This mic thing, it that audio transmitted together with the AV signal or how does that work? • Posts: 947 Threads: 66 Likes Received: 350 in 248 posts Likes Given: 164 Joined: Apr 2016 Reputation: 34 15-Sep-2016, 01:03 PM (This post was last modified: 15-Sep-2016, 01:04 PM by oyvinla.) (15-Sep-2016, 12:41 PM)babipsylon Wrote: hi Tozes Thx for the tips. The EV800 kind of looks cool. Is it useful as a screen or rather small? And how do you guys attach it to the transmitter? Regarding the VTX: 25mW is the maximum allowed in Belgium. I heard of some people who got their purchase confiscated at the border, if they order from outside the EU. I guess it depends on luck. This mic thing, it that audio transmitted together with the AV signal or how does that work? Ok, I had a hunch that it was a reason behind choosing the 25mW. In Norway you need a license to transmit with higher power than 25mW on the 5.8GHz frequency, but it is no problem to buy the equipment. The audio is transmitted together with the video and most receivers let you plug in a Video/audio cable. It is nothing you need to do, but there are some issues with different brands that send audio on the left channel, while the receiver expect it to be on the right channel (or vice versa). I haven't had any problems with the audio and using eachine ET526 VTX with Fatshark and Realacc RX5808 diversity module. I just plug in a headset to the goggles and there is sound Posts: 195 Threads: 8 Likes Received: 86 in 54 posts Likes Given: 79 Joined: Aug 2016 Reputation: 6 (15-Sep-2016, 12:41 PM)babipsylon Wrote: hi Tozes Thx for the tips. The EV800 kind of looks cool. Is it useful as a screen or rather small? And how do you guys attach it to the transmitter? Regarding the VTX: 25mW is the maximum allowed in Belgium. I heard of some people who got their purchase confiscated at the border, if they order from outside the EU. I guess it depends on luck. This mic thing, it that audio transmitted together with the AV signal or how does that work? 5" is not very big but should still be fine. I guess this depends a bit on personal preference and how good is your eyesight I'd say that if you plan to move to goggles later on and want a screen just to get started, the EV800 is a good option. If you plan to stick with the screen, then the bigger the better. Posts: 8 Threads: 2 Likes Received: 0 in 0 posts Likes Given: 3 Joined: Sep 2016 Reputation: 0 hi guys Thx for all the tips. The more I'm reading, the more I get confused, as the choice is overwhelming. So this setup is at least compatible with repect to connectors and frequency bands, see below. I'm pretty sure about the EV800 goggle/monitor, but: question 1) I’m still doubting about my antennas, some people claim aomways (1) are not much of an improvement over the more simple stock antennas. Immersion rc would be very good, at 3x the price of the aomways. question 2: So with the cheap 25mW transmitter (only one I could find at 25mW at banggood, Belgian legislation requires that), is it really worth to put 35 euro antennas on? Is my transmitter too cheap, or wil lit be ok? question 3) What is the plug with '1 2 3' on for on the transmitter? Antennas: 1) AOMWAY 5.8G 3dBi RP-SMA Male Four Lobe RHCP VTx/VRx FPV Antenna http://www.banggood.com/AOMWAY-5_8G-3dBi...78264.html connector: RP-SMA Male € 13.57 or these 2) but these would be like an industry standard, put price is x3: ImmersionRC 5.8GHz Circular Polarized SpiroNet Antenna V2 (RP-SMA) (EU Warehouse) http://www.hobbyking.com/hobbyking/store...ouse_.html EU35.99 transmitter: female rp-sma connector, raceband € 15.48 Eachine ET25R FPV 5.8G 40CH 25mW Mini Transmitter With RaceBand Race Band http://www.banggood.com/Eachine-ET25R-FP...23853.html goggles/monitor: Eachine EV800 5 Inches 800x480 FPV Goggles 5.8G 40CH Raceband Auto-Searching Build In Battery http://www.banggood.com/Eachine-EV800-5-...01201408U4 • Posts: 947 Threads: 66 Likes Received: 350 in 248 posts Likes Given: 164 Joined: Apr 2016 Reputation: 34 19-Sep-2016, 09:05 PM (This post was last modified: 19-Sep-2016, 09:32 PM by oyvinla.) Since you are limited to 25mw,i would probably go for a headset with diversity. If I remember correctly, eachine got something like that. Then you can pair a set of omnidirectional and directional antennas for the best reception. You can check out my video where I compare the aomway and dys antenna to get the feeling of what to expect from a 25mw vtx
This is the goggle I was thinking about. I have not tried them, so I can't say anything about them, but I guess it is good enough for the price. http://m.banggood.com/Eachine-VR-D2-5-In...74866.html • Posts: 195 Threads: 8 Likes Received: 86 in 54 posts Likes Given: 79 Joined: Aug 2016 Reputation: 6 20-Sep-2016, 08:52 AM (This post was last modified: 20-Sep-2016, 08:55 AM by tozes.) The Aomway antennas are pretty good, those are the ones I'm currently using. Only complain I have is that since the wires are exposed, I had a few bending or detaching from the middle on hard crashes. I wouldn't recommend the Spironet as they're a bit outdated, if you want to go premium check the TBS Triumph which according to the reviews are far superior and are super tough during crashes (they're filled with some foam inside the protective case for extra protection). In terms of link quality the triumph and aomway should be very close. Both the receiver and goggles have RP-SMA connector so RP-SMA antennas are good. Antennas are arguably the most important bit of the FPV equipment so yes, I'd say it's worth investing in good antennas. • Posts: 947 Threads: 66 Likes Received: 350 in 248 posts Likes Given: 164 Joined: Apr 2016 Reputation: 34 Here is a simple video comparing the Aomway and DYS antennas on 25mw, 200mw and 600mw. Nothing scientific about it, I'm sorry for the lengthy video, but I got carried away when testing the 600mW and started doing some acro stuff at the same time • Posts: 8 Threads: 2 Likes Received: 0 in 0 posts Likes Given: 3 Joined: Sep 2016 Reputation: 0 (20-Sep-2016, 09:28 AM)oyvinla Wrote: Here is a simple video comparing the Aomway and DYS antennas on 25mw, 200mw and 600mw. Nothing scientific about it, I'm sorry for the lengthy video, but I got carried away when testing the 600mW and started doing some acro stuff at the same time hi oyvinla It's hard to estimate range and location from the video. Was the Aomway giving up earlier? r • Posts: 947 Threads: 66 Likes Received: 350 in 248 posts Likes Given: 164 Joined: Apr 2016 Reputation: 34 The range was about 170-180 meters away at the furthest behind some trees and bushes and yes, it looks like the Aomway was giving up earlier. • Posts: 947 Threads: 66 Likes Received: 350 in 248 posts Likes Given: 164 Joined: Apr 2016 Reputation: 34 180 meters was with 25mW VTX and behind some trees and such. With 200mw and 600mW you can go much further, but unfortunately, the place I was testing was not any bigger Here is the map: • |