Is The Lightest ELRS RX Going to FAILSAFE? Checking Out The Happymodel EP2 TCXO ExpressLRS Receiver!

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Checking out the tiny receivers available within the ELRS ecosystem. This is one of the main reasons I wanted to give ELRS a whirl, just look at how small, lightweight, and compact these are!
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Items suggested in this video
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My Favorite Screwdrivers (Wiha Slotted & Phillips):
Amazon US: amzn.to/3tq15Eu
Amazon Canada: amzn.to/3E1Ph02
DJI FPV Goggle V2:
Amazon US: amzn.to/3H9FGZk
Amazon Canada: amzn.to/3VLHQlY
DJI O3 Air Unit:
Amazon US: amzn.to/3WZnupK
Amazon Canada: amzn.to/3jJszUR
GetFPV: bit.ly/3ioEE1s
XING2 1404 4600kv Motors:
Banggood: www.banggood.com/custlink/mG3...
GetFPV: bit.ly/3GQa7mz
iFlight 20x20mm F7 Flight Stack:
Banggood: www.banggood.com/custlink/3vK...
GetFPV: bit.ly/3vLrWx3
Happymodel EP1 Receiver:
AliExpress: s.click.aliexpress.com/e/_DEH...
GetFPV: bit.ly/3GRtYC8
Happymodel EP2 Receiver:
AliExpress: s.click.aliexpress.com/e/_DEH...
GetFPV: bit.ly/3k2G7eu
Happymodel Moxon 2.4GHz Antenna:
AliExpress: s.click.aliexpress.com/e/_Det...
GetFPV: bit.ly/3GR7Rvv
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Videos you may want to check out
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TBS Tango 2 Pro INTERNAL ExpressLRS | How to guide on stuffing an ELRS module INSIDE the transmitter:
• TBS Tango 2 Pro INTERN...
Happymodel EP1 vs. EP2 Range Penetration Comparison:
• TBS Tango 2 Pro INTERN...
FULLY Customizable HD OSD canvas mode for DJI FPV Goggles V1 & V2 | My EYES can't handle the BEAUTY!
• FULLY Customizable HD ...
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Links
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ExpressLRS Configurator:
github.com/ExpressLRS/Express...
Happymodel Website:
www.happymodel.cn/index.php/2...
#elrs #fpv #drones
Mandatory Disclaimer: I participant in the Amazon Services LLC Associates Program, which is an affiliate advertising program designed to provide a means to earn fees by linking to Amazon.com and affiliated sites. Item suggestion links above are affiliate links and I will receive compensation if you choose to use them. There is no cost to you to use these links and any compensation received goes right back into the channel.

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21 янв 2023

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Комментарии : 67

@ericcoker8784 5 месяцев назад

This video is perfect and perfectly timed! I had the Flywoo el24e on the Flywoo Firefly 1S Nano-Baby v1.2 and the newer Flywoo 1S Firefly FR v2.0. has stock Flywoo EL24E! I have always had issues with the ceramic antenna on those two. (Ironically, my AIO HM 2G4 uses same antenna but has better range). So, on the elder Flywoo, I swapped out to the old style EP2. Same issues! So, like you, I stopped using 500hz @100mw. I live near other houses with security cameras, shit ton of wifi and cellular stuff. Truth be told, Some of my newer FRSKY or Futaba were slightly worse with range. I actually tried 250hz at 100mw, a lil better. Then 150hz at 100mw, way better. Actually the video starts to suffer @250mw. Then, I went to the park....500hz and 250hz had more freedom at 100mw and could easily surpass video at 250mw. The 150hz at 100mw was way better than expected. To summarize: if using any receiver with a ceramic antenna, skip 500hz and go directly to 250hz @100mw. If more is needed, hit up the 150hz @ 100mw! Did I mention that these are 1S lil quads? I will try this on the HM Mobeetle with 400mw VTX when the weather gets better!!!! Haha

@Mangorille 5 месяцев назад

In my type of flying, I'm only comfortable flying these receiver at 150hz or lower. I did some testing on a similar receiver from BetaFPV and same experience.

@nickvledder 6 месяцев назад

Spot on video! Actually, good research being documented in this video.

@Mangorille 6 месяцев назад

Thanks, happy flying!

@ha-media Год назад

This is a very useful video especially if you're looking to get into ELRS. Thanks for the review 👏👏

@Mangorille Год назад

Glad it was helpful!

@burdfamfpv Год назад

Thanks for the info 👍 much love just switched over to elrs myself but I like to use the iflight elrs reciever,(from race day quads)hasn't let me down yet !!

@Mangorille Год назад

No problem. Liking it as well, a bit more tinkering but love the size and compatibility!

@rilijn 5 месяцев назад

I cannibalized a whoop and some spare parts and mounted it on a fractal wingman today (3” folding 1s 18650 frame). I was curious about the range of the little ceramic antenna, but I was SUPER impressed. Just over a mile, or 1.5-2Km. I set the packet rate at 50 Hz, and my boxer radio at 50 Hz, dynamic and 1W max output. I had solid signal all the way out to over a mile before I chickened out. And I’m in suburbia! I don’t have transmit power in my OSD, but I’ll definitely add it now. Anyway, amazing little things. ELRS is the way.

@Mangorille 5 месяцев назад

I find it performs acceptably for packet rates of 150 or lower. Not as good as an external antenna but has its place for smaller or super light weight builds.

@baggszilla Год назад

Thanks for this! I recently just bought 4 EP2 TCXO RXs for my 5" HDZero Race quads. I think I'll be alright will see. I just love how there is no need for a chopped T-antenna when racing.

@Mangorille Год назад

No problem, I'm curious how the durability of the ceramic antenna will be in a racing setting though.

@TorontoFPV 6 месяцев назад

only thing I've never broke n I break Everything! Always shrink wrap though!@@Mangorille

@Mangorille 6 месяцев назад

@@TorontoFPV Haha

@RC-Flight Год назад

Nice video! I'm using the HappyModel EP1 TCXO on some of my quades. I like their small size and that the temperature compensated crystal may be helpful. It looks like you coated your FC board.

@Mangorille Год назад

Nice, I'm using the same one! Yes I did, I used to do a lot of crashing in snowy conditions so wanted to add a bit of protection after I lost one FC/ESC stack in a snowy crash.

@RC-Flight Год назад

@@Mangorille 🇨🇦 nice! Maac has me grounded, so no outdoor flying for me, just been flying indoors.

@Mangorille Год назад

Hi Everyone. Thanks for checking out this video! If you want more information on the ELRS signal health indicators, there's a really good write-up on their site at the link below. Note that I have all the pertinent signal health information in the on screen display (OSD) so you can go back and form your own opinion as well. Signal Strength: dBm (e.g. -80) Note: Higher number means better signal strength. As this is a negative number, -60 is a stronger signal than -80 Link Quality: Refresh Rate Mode:% of Packets Received (e.g. 7:100) Note: 7 = 250hz, 5 = 150hz Transmitter Power: mw (e.g. 250mw) www.expresslrs.org/2.0/info/signal-health/

@AtomAnt_FPV 11 месяцев назад

Very good video! Can you tell me how you get transmitter power in your OSD please? Thanks!

@Mangorille 11 месяцев назад

@@AtomAnt_FPV Thanks. I just added the OSD element for the TX power. It shows the ELRS transmit power from the transmitter.

@uhu4677 Год назад

Position matters. With the receiver/antenna between the battery and Vista its reception is impaired.

@Mangorille Год назад

For sure, I mentioned in the video that the placement is not ideal but I can't think of anywhere better that would give the antenna better signal and also protect the receiver from crash damage.

@StuartArmit Год назад

Stick it on top of the fc, I suspect it would do quite a bit better.

@Mangorille Год назад

@@StuartArmit I'll have to check but don't think I have enough height there and it would be right under the battery so would be even more shielded on top.

@anubhavsingh2916 Год назад

Hi Mangorille I am building rejon 5 analog version and I want to best place to mount my Beta FPV ELRS flat antenna rx. Any suggestions will be greatly appreciated…

@Mangorille Год назад

Not familiar with that frame. You have a link?

@anubhavsingh2916 Год назад

@@Mangorille Sorry it's Rekon 5

@Mangorille Год назад

@@anubhavsingh2916 Why do you want to run an EP2 on that build? It looks large enough to fit the EP1 instead with a normal antenna coming out the back. You'll get way better range that way.

@elbedouirayen7938 4 месяца назад

Please did elrs slim pro module reach 1w with tango 2? Thank u

@Mangorille 4 месяца назад

My internal ELRS module in my Tango 2 only goes up to 500mw.

@elbedouirayen7938 4 месяца назад

@@Mangorille thank u so much i wanna buy the external one

@Crashingfpv 2 месяца назад

Do you have a lost beeper, 3d Print for the Qav-s Mini? Nobody can hear the Qav in the park, it's great

@Mangorille 2 месяца назад

No, I don't use a separate beeper but if you find one for another frame you can remix it. I made a video a while ago on how: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-EMkQSWrRglc.html

@Crashingfpv 2 месяца назад

@@Mangorille You da man! Thanks

@Mangorille 2 месяца назад

@@CrashingfpvNo problem, happy printing!

@MidnightMarrow Год назад

Everyone talking about how fragile the ceramic is and you mentioning not really wanting to use it because of the signal you were getting, if anything I feel like with it's size and being able to put it pretty much anywhere the supposed fragility shouldn't even matter because it should be protected by the frame. You pretty much couldn't have had a worse situation for that poor RTX where you put it so the fact it was doing THAT good in that terrible spot I'd almost say that's a good selling point. In my case I'm looking to replace an XM+ on my alien frame and it's mounted to the bottom rear of the frame, having the EP2 in the same spot which is much a much more OPEN area, I'd imagine it would do much better than what's happening in your setup and it's not like you had failsafe micro failsafe issues like I do with the XM+ at closer range and direct LOS. Had to get new frame pillars n such with one of the failsafe issues when it pancaked on the street, I was doing a dive when it suddenly failed to respond when I needed it the most for punchout so if it does even a little bit better than that, it's certainly worth it I'd say. If I can get good range with my setup and the EP2 and not have to worry about antennas getting tugged out, chopped up etc I'd say that's an absolute win.

@Mangorille Год назад

The EP2 has its place but if you can find the space for the EP1 that would be preferred. The ELRS antenna are small enough that fitting them to a smaller quad isn’t challenging like what we had with crossfire.

@MidnightMarrow 10 месяцев назад

@@Mangorille Very true. I ended up getting the EP1 but have the QX7 radio and while it works it does have it's issues. That said signal and speed compared to the XM+ I used is amazing.

@Mangorille 10 месяцев назад

@@MidnightMarrow What kind of issues are you having?

@MidnightMarrow 10 месяцев назад

@@Mangorille Oh it's just due to the slower hardware of the older QX7. Need to use 1-bit mode to get it to work but then I have issues with "telemetry lost" repeatedly and I guess the hardware mod for it might do the trick. Part of me wants to do said hardware mod cause I put the hall gymballs on it and part of me also wants a nicer radio in general lol. But really aside from that annoyance like I said I have rock solid control over the quad whereas the XM+ would micro failsafe constantly regardless of how close or far I was. The seemingly limitless signal and reactive controls gives much more confidence to say the least.

@aerialcombat Год назад

that's my favorite frame

@Mangorille Год назад

Hey. Which one? The Lumenier or the Quadmula?

@heroflying Год назад

yeah, I played around wiht the EP2's on larger quads... I would not run it. The other thing about them, the ceramic antennas are VERY VERY fragile. IMHO just not suitable for bigger quads like 3" and up. I just use it on tiny whoops.

@Mangorille Год назад

Ya, weight difference of let's say .5grams isn't that much for a larger quad anyway.

@heroflying Год назад

@@Mangorille for me the draw had it worked was assuming you could mount it someplace the ceramic antenna can't be touched that you'd never have to worry about antenna damage, but... it just doesn't do the job for larger quads.

@Michael-nu6fb 8 месяцев назад

I'm thinking of covering it in a big blob of hot glue. Any thoughts?

@enrico320i Год назад

Nice Test my friend. I did also test Out EP1 EP2 and RP3 if you want see it, check out my Last 3 Videos. I managed to find the Edges i can say. The numbers work different on ELRS you totally fine here i would say🤩. On Crossfire it's different, Lq drop means Signal can get worst very quickly ELRS not so.

@Mangorille Год назад

Thanks bud, I'll check it out. I read the really nice write up on the expresslrs site about link quality and they still say "Remember, LQI is all that matters". Still do have to remember that at 250hz you're getting a lot more packets out there than crossfire at 50hz so even with a 70 percent link quality, still better refresh rate than crossfire. :) www.expresslrs.org/3.0/info/signal-health/

@shaneintegra Год назад

Once txco diversity came out for ELRS, thats the only thing ill run in all my builds except tiny whoops

@Mangorille Год назад

It's out: s.click.aliexpress.com/e/_DCJ5sdN

@kurtzFPV Год назад

I replaced my crossfire rxs with these on my three 5" quads about 1.5 months ago and all is well so far. I haven't had a place to fly more than a kilometer out yet though. Flying at 250hz dynamic power.

@shaneintegra Год назад

@@Mangorille if you want one quicker you can get the BetaFPV SuperD from Amazon for the same price

@Mangorille Год назад

@@shaneintegra Thanks, I'm okay with the non-diversity ones for my type of flying.

@davidlee50 5 месяцев назад

1000ft max if that?

@Mangorille 5 месяцев назад

Depends on the packet rate you want to run and the amount of obstacles/interference around. I've been running this receiver at 150hz up to about 500ft away and been perfectly okay. Most of the time the transmitter is at 10 - 25mw.

@airdevil21 4 месяца назад

dude you really should move that ep2 antenna out of in between the carbon frame its blocking your antenna big time.

@Mangorille 4 месяца назад

Yes, positioning is not ideal. Tough to find a good place that protects the antenna but also gives good signal.

@MomoBrut Год назад

ELRS LQ has completely different behavior compared to (), values much lower than 50 are fine and you are still under control ... And the key parameter to switch power is RSNR! You were pretty far from fail saving that EP2 ...

@Mangorille Год назад

Agree, even with 70% of packets getting through, you're in control especially at this dbm signal strengths (I have that on the OSD as well). There's a really good write up on the expresslrs site about the signal health but ultimately it says that both link quality and signal strength are important, BUT, "Link Quality Indicator, this value indicates how much of the conversation is being understood and ultimately all that matters" www.expresslrs.org/3.0/info/signal-health/

@MomoBrut Год назад

@@Mangorille Read about RSNR ... I was already flying 9 km away from me at 25 mW with Matek R24-D. EP2 can do close to 3 km at 150 Hz and 100 mW.

@MomoBrut Год назад

Normally you will not FS because of very low RSSI dBm or lower RQLY, you will probably sooner reach the critical RSNR. With ELRS v3.0 and higher the really critical threshold for RSNR is somewhere around - 6 to -7 dB (depends on packet rate), standard BF4.4 alarm (very safe) is at 4 dB, normally you are somewhere around 13 to 14 dB. That is brief explanation.

@Mangorille Год назад

@@MomoBrut This sounds like perhaps more in a rural area without too many obstacles and competing signals. Correct?

@MomoBrut Год назад

@@Mangorille It doesn't have to be a rural area. The main thing is a direct line of sight between the antennas in the correct polarization, always vertical polarization. With a tower antenna, it is not so important, although it is also a little. And your placement of the antenna is wrong, once it is shielded by Vista, secondly by the frame and thirdly by the battery.