You'll read in another comment that I have just started converting my nice aircraft to ELRS. This video proved hugely valuable. I especially appreciated the receiver number and packet rates hints, the latter being doubly important as LBT firmware restricts the TX to 100mw.
Hi RC Video Reviews, with the compliments for these tutorials which, of course, I have bookmarked and, unless you advise otherwise, would also use for my drone in order to be able to switch the RSSI so as to distance myself from noise and have a better link automatically. One thing, having the Radiomaster Boxer and therefore a black and white display, in Logical switches page 9/12 how can I set V1 ? to 1RSSI and then V2 ? also to -95 ? Thank you.
Another mystery solved! Was wondering why the receiver ID number setting. Makes complete sense now. Thanks again for another concise and informative video, John!
It was weird, they weren’t quite as loud in the editor or in the TH-cam app. Try new things..gonna crack some eggs. I’ll know next time to turn them down a little more :)
When I set my packet rate to 333hz, INAV doesn't seem to get any input from the receiver. Change it back to i.e. 250hz it works again. Am I missing some setting somewhere or could it be a limitation on the receiver? (i have updated both TX & RX to see it that makes a difference)
Got my module right after my only quad died. Damn mipi cable was pinched from factory. Gave out when i landed yesterday. Just waitin on the mail man lol
@@RCVideoReviews i have short term memory~car accidents,long story.i noticed i miss posted below ,was ment for a fishing channel,i deleted it im sure you ave enough to do! now im resettting up my radio and adding a cinewhooop ,havnt been mobile for 8months,poped 2 discson top of having a deteriorating spine,so sadly thiss is all new to me again even with 10 months of videos lol.God bless and please fforgive me if i repeat a question.not that i do it often as i try re read my posts.thanx for sharing.
I seem to always have the Wi-Fi connection issue. I found that, once in Wi-Fi transmit mode, turn off the Wi-Fi on the PC, then turn it back on. Then it magically shows up on the PC’s network list. I’ll try the browser trick you mentioned the next time I flash one that won’t connect. Thanks.
Hello, this is my first time using this radio and protocol and I was wondering... how do I put the TX16S with the ER8 2.4GHZ Receiver to "range check" mode? When I go to the Internal RF section I don't see "range" option
My whole reason for wanting to switch from Tracer to ELRS; I want telemetry in order to change vtx settings and rates from my radio. Is that an option with ELRS?
Feels over my head at the moment since I just upgraded to ETX today for keeping up with the hobby and for moving toward ELRS. Is there a beginner course? I’m thinking of picking up the radio master ranger micro. Where should I start for learning and prepping for ELRS?
Look at my Beginner Series Playlist th-cam.com/play/PLy3TC1ILJYTjqDXFB84oXVWZG14zyMYYt.html and also take a look at my snippet videos: th-cam.com/play/PLy3TC1ILJYTjsMsQ2YF5ZCUubv0IFiWkd.html
@@RCVideoReviews yup I agree. I’ve messed around for a few days now and think I’m a pro lol. Jk…it’s intuitive when you click around. I think I was just overwhelmed after all the problem solving with upgrading to EdgeTX. Thanks again for the responses
So do you have to specify these parameters for the Rx in flight control software, or does this happen via the radio link? BF (for multirotors) has presets with the various parameters for the Rx. I thought it happened OTA, but these make me think perhaps not.
great video finally so clear and simple john can you do something similar for the famous aux 1 or channel 5 set up i'm still confuse and not clear in case of plane set up tks👍
Just hang tight on aux1. There are a lot of things happening right now. And I will have a video going up in the next few days. I have a LOT of ELRS gear inbound right now.
I got a matek elrs diversity rx and im scared to install it in anything. Apparently minor temperature changes causes frequency drift and loss of connection. Matek recommends desoldering capacitors....
Sorry for the question, but in another video made by you, called "expresslrs link telemetry • how to set up" you say that to configure the rssi on the radio, the values are 50 low alarm, 20 critical alarm. But in this video you are saying 75 and 65. So what is the correct configuration for the rssi in the radio?
After discussing with the ELRS developers, I changed to 50/20. The reality is though, it doesn't matter that much. The number reported is RQLY which, even if it dropped to 5% at a paltry 100hz would still mean 5 updates are being understood on the RX per second which is still very good connectivity. At the time though, the radio firmware itself didn't allow a floor below 65. That has also since been changed.
Thanks for the awesome videos. I'm looking to purchase EdgeTX Transmitter and wasn't sure what protocol to get. Like 4 in 1 then get ExpressLRS Module or just purchase a Transmitter with ExpressLRS built in. Thanks
I can't change it to 333mhz for the sbus it screen said baud rate too low I changed it in the radio and went back to elrs lua script and the same thing only 115mhz works but I need to switch it to 16 channel rate2 for sbus
2.8 updated the range to use 0-100. So now you can chose an RQLY range that works for you. In speaking with one of the main developers he said going as low as 5 still works. Personally I’m think a n alert at 75 with a critical at 50 would be a safe starting point.
Hello My RX and TX are bound, but FC is not responding to inputs I have 2 different Fc but i still cant figure out the problem I have done all the settings with mismach but still not working
@@RCVideoReviews Thanks I have had information from the fc like the betaflight version so i have reflashed the rx and started new with model mach and after few settings there i have managed to get it working but dat model mach is really confusing and hard to get it working
Hi John, great video as always. I'm having an issue with Happymodel EX24 TX external module,latest edgetx on a RM TX12 transmiter. i updated the TX and RX both on 2.5.1, however, when i activate the LUA script, i'm getting the (LOADING...???) error. I've read everything on elrs site including troubleshooting, followed your video steps, i joined elrs forum, used 2 different computers, tried everything that people have told me steps to do and "NO GOAL". Also, i'm using CRSF. Also tried changing BAUD rates but still not loading.I'm all out of options, do you have a video regarding this issue you can share? Any help is greatly appreciated. I also have a TX12 Mark 2 with edgetx and elrs and that transmiter works flawlessly. Thank you for sharing your knowledge.
Does the external module work on the other radio? Did you update the LUA script? You really need to get on our discord and ask there. TH-cam is not good for sorting this kind of thing.
@@RCVideoReviews I'ts ok, thank you. I'm just gonna order another TX12 Mark 2 for my son. Not gonna spend any more time dealing with the HM ES24 TX external module. Thanks for trying to help. Much appreciated.
6:00 you contradict a previous video, recommending to setting your link alarm , you advised 50/20 ? Model match , is that number burned into the receiver when you flash it ! Or you can change it at random ? Want to hear a funny ? ELRS has intimate me , I was flying my big quads on Futaba , is solid but no telemity. I took out my quad for a shake down and got critical alarms at 1000 meters , I was like wtf ? I went home and found out my transmitter was at 25 MHz lmfao but wow ! My futaba is 100 MHz and will failsafe at 1000. That amazing eh ! Thank you for your work .
Based on my research at the time, the higher numbers in the video were generally espoused best practices. Not content with guesstimates, I spoke with the actual developer and revised the range down based on his feedback. There is no harm in using the higher value so I left the video up. Model match is not burned in, but it part of the binding logic so if you use it to bind and disable it on the radio, you will have to rebind. I’ve done a lot of flying with ELRS at this point and believe it will be my primary Rx tech.
It indicates sensitivity. Higher dBm is better. So we'd rather have -5 than -10 RSSI, but was distance/obstacles between RX and TX increase, the dBm decreases toward the limit (-105 or -112). As your RSSI decreases, would you rather stop at -105 or would you rather be able to go to -112--which is -7dBm more effectively meaning double the range of -105.
You might want to check your work: "every 6-dBm increase in output power doubles the possible distance that is achievable." www.electronicdesign.com/technologies/communications/article/21796484/understanding-wireless-range-calculations I believe you're confusing power:dbm and range:dbm Everytime you double the power, you increase the dbm by 3. That has nothing to do with range. To double the range, you need to increase the dbm by 6. www.raviyp.com/calculating-the-range-of-a-wireless-device/ Double the power = 3 dB increase Half the power = 3 dB decrease 120 dB link budget at 433 MHz gives approximately 2000 meters (Chipcon rule of thumb) 6 dB improvement ~ twice the distance
Not the issue in my case. My dhcp range does not include LAN assigned statics. DHCP should really never try to assign IP addresses if the server is setup correctly.
@@RCVideoReviews the configurator RX Wi-Fi protocol will try and open a web page on 10.0.0.1 static so it can be configured. My Router IP address happens to be 10.0.0.1. I had to change that address for it to work. DHCP is not in the picture.
The RX only uses 10.0.0.1 when it is using it's own hotspot. In this case, your home router isn't relevant. If your Rx connects to your home SSID, it will ask your DHCP server for an address which should not conflict with your router if your DHCP is setup correctly. In either case, DHCP is used. If you connect to the hotspot, the Rx provides your wifi interface on the PC an address and it should be 10.0.0.2. If your RX connects to your SSID, the DHCP server on your wireless issues an addres. The Rx doesn't use 10.0.0.1 if it connects to the SSID so there is no conflict.
Not at all. My home subnet is 192.168.1.0/24. Re-read my previous comment. There are two scenarios: Scenario #1) The Rx/Tx is in hotspot mode. In this mode, your home network has nothing to do with anything. The communications exist between the rx/tx and the computer directly. You are not connected to your home ssid. You are not connected to your home router. Your home subnet can be anything it wants to be because it's simply not material in scenario #1. In this scenario, the rx/tx uses 10.0.0.1 and your pc gets an address 10.0.0.2. Again, DOES NOT MATTER WHAT your home network uses in this scenario. Scenario #2) The Rx/Tx connect to your home SSID and ask the home router for an IP Address. In this instance, the HOME ROUTER IS RESPONSIBLE for providing an IP address to the Rx/Tx that does NOT CONFLICT with the home router address. In your case, if your home router is 10.0.0.1, then the router DHCP server should know this and NOT give 10.0.0.1 to the Rx/Tx. It should assign an address that is not already being used. Any further response on this from me will occur on discord.
elrs uses crossfire protocols its nothing new just used someone elses work wrapped it in another package and called it their own this is why ill stick with crossfire the original solid connection that hasnt let me down easy to update etc
Congratulations. You get the most ignorant comment of the week award. You're clearly clueless about the tech, so I'm not going to even bother with a debate. Go do your homework and try again. PS You might want to consider NOT polluting the Internet with ignorance.
![Express LRS [ELRS] 3.0-RC2 Matek Crossfire to PWM First Flight](http://i.ytimg.com/vi/Umc4tmlvnws/mqdefault.jpg)
![Express LRS [ELRS] 3.0-RC2 Matek Crossfire to PWM First Flight](/img/tr.png)
You'll read in another comment that I have just started converting my nice aircraft to ELRS. This video proved hugely valuable. I especially appreciated the receiver number and packet rates hints, the latter being doubly important as LBT firmware restricts the TX to 100mw.
That is one of my favorite tricks with ELRS--and I'm all in on using it for my models at this point. Even my helicopters are getting it.
Got my first elrs tx and rx today. Perfect timing to start this new journey. Thank you
I jumped in the rabit hole big time.
Once again, I dub your video as the ELRS HOLY GRAIL. Thank you for these tips. Very insightful and helpful. 🤩😎
Wow you have been busy amazing stuff John . Glad you are taking all the guessing out of how to set up ELRS and making it easier thank you
Take Care
Thanks Robert. Have been very heads down lately and have a pile of gear inbound. There will be a lot of videos on ELRS coming up.
Hi RC Video Reviews, with the compliments for these tutorials which, of course, I have bookmarked and, unless you advise otherwise, would also use for my drone in order to be able to switch the RSSI so as to distance myself from noise and have a better link automatically. One thing, having the Radiomaster Boxer and therefore a black and white display, in Logical switches page 9/12 how can I set V1 ? to 1RSSI and then V2 ? also to -95 ? Thank you.
once again you help me lol. short n sweet but no one else is explaining this stuff. and finding time to read all night just doesnt exist. lol
Even with good text it can be intimidating to digest the practical application. I kind of like this format too, but need to tone down the anvil :)
Another mystery solved! Was wondering why the receiver ID number setting. Makes complete sense now. Thanks again for another concise and informative video, John!
You bet!
Thanks for these tips. It will make it easier to set up things. Keep up the good work John.
You bet! Really excited with what ELRS is doing right now.
Great video John, Elrs is coming along very nicely! It is a very exciting time to be in our hobby!! Take care
It sure is. Great developments going on out there.
Amazing,thanks John
My pleasure!
Love the tips! Hate the slamming sound effect! 😄
It was weird, they weren’t quite as loud in the editor or in the TH-cam app. Try new things..gonna crack some eggs. I’ll know next time to turn them down a little more :)
Great video! Super.
Thank you! Cheers!
Great tips!
Thanks! Appreciate the comment.
Great tips overall.. Thanks!
No problem!
When I set my packet rate to 333hz, INAV doesn't seem to get any input from the receiver. Change it back to i.e. 250hz it works again. Am I missing some setting somewhere or could it be a limitation on the receiver? (i have updated both TX & RX to see it that makes a difference)
Got my module right after my only quad died. Damn mipi cable was pinched from factory. Gave out when i landed yesterday. Just waitin on the mail man lol
Uggh. That sucks.
Great tips, easy to understand and very simplified, amazing contribution Thanks a lot!
You're very welcome!
Thanks!
You're welcome and thanks for hitting the tip jar.
Awesoome ,subed liked, thank you for sharing.!
Thanks and welcome.
@@RCVideoReviews i have short term memory~car accidents,long story.i noticed i miss posted below ,was ment for a fishing channel,i deleted it im sure you ave enough to do! now im resettting up my radio and adding a cinewhooop ,havnt been mobile for 8months,poped 2 discson top of having a deteriorating spine,so sadly thiss is all new to me again even with 10 months of videos lol.God bless and please fforgive me if i repeat a question.not that i do it often as i try re read my posts.thanx for sharing.
I seem to always have the Wi-Fi connection issue. I found that, once in Wi-Fi transmit mode, turn off the Wi-Fi on the PC, then turn it back on. Then it magically shows up on the PC’s network list. I’ll try the browser trick you mentioned the next time I flash one that won’t connect. Thanks.
Hello, this is my first time using this radio and protocol and I was wondering... how do I put the TX16S with the ER8 2.4GHZ Receiver to "range check" mode?
When I go to the Internal RF section I don't see "range" option
I'm not aware of a range check mode on ELRS. I've never bothered with it on ELRs and I fly everything I have with it.
My whole reason for wanting to switch from Tracer to ELRS; I want telemetry in order to change vtx settings and rates from my radio. Is that an option with ELRS?
Great tips. 👍🤓
Feels over my head at the moment since I just upgraded to ETX today for keeping up with the hobby and for moving toward ELRS. Is there a beginner course? I’m thinking of picking up the radio master ranger micro. Where should I start for learning and prepping for ELRS?
Look at my Beginner Series Playlist th-cam.com/play/PLy3TC1ILJYTjqDXFB84oXVWZG14zyMYYt.html and also take a look at my snippet videos: th-cam.com/play/PLy3TC1ILJYTjsMsQ2YF5ZCUubv0IFiWkd.html
@@RCVideoReviews thank you 🙏, but this looks like a link to Open TX. I’ll look to see if you have Edge TX for beginners.
Core functions are the same on both systems. i.e. Learn to mix on one, the mix rules apply the same on the other.
@@RCVideoReviews yup I agree. I’ve messed around for a few days now and think I’m a pro lol. Jk…it’s intuitive when you click around. I think I was just overwhelmed after all the problem solving with upgrading to EdgeTX. Thanks again for the responses
So do you have to specify these parameters for the Rx in flight control software, or does this happen via the radio link? BF (for multirotors) has presets with the various parameters for the Rx. I thought it happened OTA, but these make me think perhaps not.
TX parameters are set via LUA on the radio. RX parameters can be set via LUA or via the WebUI.
great video finally so clear and simple john can you do something similar for the famous aux 1 or channel 5 set up i'm still confuse and not clear in case of plane set up tks👍
Just hang tight on aux1. There are a lot of things happening right now. And I will have a video going up in the next few days. I have a LOT of ELRS gear inbound right now.
I got a matek elrs diversity rx and im scared to install it in anything.
Apparently minor temperature changes causes frequency drift and loss of connection. Matek recommends desoldering capacitors....
Yikes!
Sorry for the question, but in another video made by you, called "expresslrs link telemetry • how to set up" you say that to configure the rssi on the radio, the values are 50 low alarm, 20 critical alarm. But in this video you are saying 75 and 65. So what is the correct configuration for the rssi in the radio?
After discussing with the ELRS developers, I changed to 50/20. The reality is though, it doesn't matter that much. The number reported is RQLY which, even if it dropped to 5% at a paltry 100hz would still mean 5 updates are being understood on the RX per second which is still very good connectivity. At the time though, the radio firmware itself didn't allow a floor below 65. That has also since been changed.
@@RCVideoReviews okey! Thank you so much!
Thanks for the awesome videos. I'm looking to purchase EdgeTX Transmitter and wasn't sure what protocol to get. Like 4 in 1 then get ExpressLRS Module or just purchase a Transmitter with ExpressLRS built in. Thanks
Either arrangement:
- ELRS Internal and 4-in-1 external or
- 4-in-1 Internal and ELRS external
will work great...
I have ELRS tx16s,can I use external 4 in 1 multiprotocol module for this radio?
I can't change it to 333mhz for the sbus it screen said baud rate too low I changed it in the radio and went back to elrs lua script and the same thing only 115mhz works but I need to switch it to 16 channel rate2 for sbus
Are the values for low \ critical alarms still 75/65? You mentioned in the video that they might change.
2.8 updated the range to use 0-100. So now you can chose an RQLY range that works for you. In speaking with one of the main developers he said going as low as 5 still works. Personally I’m think a n alert at 75 with a critical at 50 would be a safe starting point.
Hello
My RX and TX are bound, but FC is not responding to inputs
I have 2 different Fc but i still cant figure out the problem
I have done all the settings with mismach but still not working
If you're 100% sure you're bound, but the FC isn't responding, then you probably either have your rx/tx swapped, or the protocol on the FC is wrong.
@@RCVideoReviews
Thanks
I have had information from the fc like the betaflight version so i have reflashed the rx and started new with model mach and after few settings there i have managed to get it working but dat model mach is really confusing and hard to get it working
Hi John, great video as always. I'm having an issue with Happymodel EX24 TX external module,latest edgetx on a RM TX12 transmiter. i updated the TX and RX both on 2.5.1, however, when i activate the LUA script, i'm getting the (LOADING...???) error. I've read everything on elrs site including troubleshooting, followed your video steps, i joined elrs forum, used 2 different computers, tried everything that people have told me steps to do and "NO GOAL". Also, i'm using CRSF. Also tried changing BAUD rates but still not loading.I'm all out of options, do you have a video regarding this issue you can share? Any help is greatly appreciated. I also have a TX12 Mark 2 with edgetx and elrs and that transmiter works flawlessly. Thank you for sharing your knowledge.
Does the external module work on the other radio? Did you update the LUA script? You really need to get on our discord and ask there. TH-cam is not good for sorting this kind of thing.
@@RCVideoReviews I did, the Discord invite says the "The address is invalid" when i click on it.
Not sure what to tell you. Link is in every video I post and I just verified it works discord.gg/jSFTASU
@@RCVideoReviews I'ts ok, thank you. I'm just gonna order another TX12 Mark 2 for my son. Not gonna spend any more time dealing with the HM ES24 TX external module. Thanks for trying to help. Much appreciated.
How to set this up with the boxer?
6:00 you contradict a previous video, recommending to setting your link alarm , you advised 50/20 ? Model match , is that number burned into the receiver when you flash it ! Or you can change it at random ? Want to hear a funny ? ELRS has intimate me , I was flying my big quads on Futaba , is solid but no telemity. I took out my quad for a shake down and got critical alarms at 1000 meters , I was like wtf ? I went home and found out my transmitter was at 25 MHz lmfao but wow ! My futaba is 100 MHz and will failsafe at 1000. That amazing eh ! Thank you for your work .
Based on my research at the time, the higher numbers in the video were generally espoused best practices. Not content with guesstimates, I spoke with the actual developer and revised the range down based on his feedback. There is no harm in using the higher value so I left the video up.
Model match is not burned in, but it part of the binding logic so if you use it to bind and disable it on the radio, you will have to rebind.
I’ve done a lot of flying with ELRS at this point and believe it will be my primary Rx tech.
How do you get an invite to the Discord server?
All the videos have the invite in the description: ► Discord - Hang out with the RCVR Crew: discord.gg/jSFTASU
From -105dBm to -112dBm is actually decreasing, why does it increases range?
It indicates sensitivity. Higher dBm is better. So we'd rather have -5 than -10 RSSI, but was distance/obstacles between RX and TX increase, the dBm decreases toward the limit (-105 or -112). As your RSSI decreases, would you rather stop at -105 or would you rather be able to go to -112--which is -7dBm more effectively meaning double the range of -105.
1RSSI doesnt show on my radio with ELRS external module
You're bound and have discovered sensors on the telemetry page?
@@RCVideoReviews what do you mean? With bound
The Rx is bound to the Tx and you've discovered sensors on the telemetry page.
Why did you say 6dbm is double range, its 3dbm to double power not 6 ?
You might want to check your work: "every 6-dBm increase in output power doubles the possible distance that is achievable."
www.electronicdesign.com/technologies/communications/article/21796484/understanding-wireless-range-calculations
I believe you're confusing power:dbm and range:dbm
Everytime you double the power, you increase the dbm by 3. That has nothing to do with range. To double the range, you need to increase the dbm by 6.
www.raviyp.com/calculating-the-range-of-a-wireless-device/
Double the power = 3 dB increase
Half the power = 3 dB decrease
120 dB link budget at 433 MHz gives approximately 2000 meters (Chipcon rule of thumb)
6 dB improvement ~ twice the distance
Sometimes Wifi won't connect to the home network because the default gateway has the same IP address. If that is the case, one of them must change.
Not the issue in my case. My dhcp range does not include LAN assigned statics. DHCP should really never try to assign IP addresses if the server is setup correctly.
@@RCVideoReviews the configurator RX Wi-Fi protocol will try and open a web page on 10.0.0.1 static so it can be configured. My Router IP address happens to be 10.0.0.1. I had to change that address for it to work. DHCP is not in the picture.
The RX only uses 10.0.0.1 when it is using it's own hotspot. In this case, your home router isn't relevant. If your Rx connects to your home SSID, it will ask your DHCP server for an address which should not conflict with your router if your DHCP is setup correctly.
In either case, DHCP is used. If you connect to the hotspot, the Rx provides your wifi interface on the PC an address and it should be 10.0.0.2. If your RX connects to your SSID, the DHCP server on your wireless issues an addres. The Rx doesn't use 10.0.0.1 if it connects to the SSID so there is no conflict.
@@RCVideoReviews so the home router has to be set up for the 10.0.0.0 255.255.255.0 subnet inside dhcp for this to work properly?
Not at all. My home subnet is 192.168.1.0/24. Re-read my previous comment. There are two scenarios:
Scenario #1) The Rx/Tx is in hotspot mode. In this mode, your home network has nothing to do with anything. The communications exist between the rx/tx and the computer directly. You are not connected to your home ssid. You are not connected to your home router. Your home subnet can be anything it wants to be because it's simply not material in scenario #1. In this scenario, the rx/tx uses 10.0.0.1 and your pc gets an address 10.0.0.2. Again, DOES NOT MATTER WHAT your home network uses in this scenario.
Scenario #2) The Rx/Tx connect to your home SSID and ask the home router for an IP Address. In this instance, the HOME ROUTER IS RESPONSIBLE for providing an IP address to the Rx/Tx that does NOT CONFLICT with the home router address. In your case, if your home router is 10.0.0.1, then the router DHCP server should know this and NOT give 10.0.0.1 to the Rx/Tx. It should assign an address that is not already being used.
Any further response on this from me will occur on discord.
elrs uses crossfire protocols its nothing new just used someone elses work wrapped it in another package and called it their own this is why ill stick with crossfire the original solid connection that hasnt let me down easy to update etc
Congratulations. You get the most ignorant comment of the week award. You're clearly clueless about the tech, so I'm not going to even bother with a debate. Go do your homework and try again. PS You might want to consider NOT polluting the Internet with ignorance.
thank you also from Rome. WHere can i download the rssic track?