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How to solder new antennas?
Krewett justicakes I'm sorry, this is my first time posting on a group but thought this would be the best spot. You both mention that you guys soldered new antennas on the flit14 and the flit10. I purchased the flit10 but the stock antennas won't work for my build, can you please tell me how to solder on different antennas? I've looked everywhere how to do this and can't learn it. Thank you for your time
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Very similar to this...
Track where the outside braid and inner signal cable connect to the board... And keep that the same with the be antenna. RED Quote:
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Some folks told me that they had 700m+ range with this rx, but some here are having random failsafes past 500 meters. Right now I am building a 3 inch racer and I went out of RX2A receivers so I decided to buy one. The funny thing is that BG has it now on sale.
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New member of the Fli14+ failsafe club - it's a really crap receiver.
I bought it thinking that with the dual antennas and the ability to show the RSSI on Betaflight OSD meant I'd be able to see when I'm getting out of range, but I keep getting failsafes at a distances and places where my FS-RX2A Pro's have no issue. The RSSI was flashing 48% when this failsafe happened:
It's as bad as the FlySky FS-A8S, I had failsafes with that one at distances shorter than I could physically throw the quad! |
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I just trimmed the antenna back to match to closer match where 2.4Ghz should be on my fli14+ receiver quad to test if it seems like its improved. Antennas make a world of difference and the exposed unshielded part of the antenna doesn't seem like its tuned correctly. I trimmed it to match my x4r-sb antennas and that receiver and antennas have always worked amazingly. Has anyone done this and seen any improvement ?
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If that fails then I've 3 options I'll be looking at; the X8B with the modified firmware, a FS-RX2A Pro which has proven itself on my micro quads, or a Flit10 which looks like it could be a good option for dual antennas with RSSI on the OSD. It's really restricting when flying with equipment you know has 'unknown' limitations like the range of the RX, but I still managed to fly like this with the Fli14+ a few days ago - youtube.com/watch?v=VWv_ilaFys8 |
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I like this receiver mainly for its size and dual antennas if it doesn't improve for me i will try soldering some different antennas i have around and see if that is any better but if it isn't then i prolly won't use flysky receivers since i fly frsky and crossfire already but i wanted to use these for racequads but they have to be reliable and won't failsafe. The fullrange micro receiver options for flysky for miniquads is terrible |
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Haku, that isn't true, failsafe absolutely works on iBus with the x6b receivers.
I think originally people had trouble setting it up properly, but I've had them since they were released and never had a problem. As well, while I can't say the fli14 receivers have the correct antenna on them, the length shouldn't just be cut at 2.4gHz wavelength. Measure any other antenna (flysky, frsky, etc) and you'll find the same. I don't pretend to understand how this all works out, but it's affected by things like the coax used, the circuitry on the board, noise amplifiers, etc. So please, report how it works out for you, but don't expect drastic changes |
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Thanks for the confirmation, BobFromMars, the failsafe only working on PWM didn't seem right, so it's just Banggood being Banggood.
I've been here before regarding the RX antenna length when I was having failsafe issues with the terrible FlySky FS-A8S, I tried cutting the length to 31mm but I couldn't see any noticeable difference. Whereas I have three 2S micro quads each with a FS-RX2A Pro, one with an original antenna and two with ones I made, measuring them now they're 24mm (original), 28mm & 31mm on the ones I made, and they can all go 200 meters line of sight without issue, leading me to believe the antenna length not being accurate enough is a small factor in how well the RX works. But I'm still going to try out the Fli14+ with 31mm length antennas, just in case it saves me having to buy another RX |
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@Haku
The flit10 is a great receiver and should meet your size and range requirement. Fantastic range >500m and great penetration. The only problem is that you can't get RSSI from it unless you have a transmitter with Flyplus software, to my knowledge. As I have a turnigy evolution, I'm not in that category. It's firmware appears to be read protected, so we haven't been able to get it to Clerick in the hope of outputting RSSI on channel 14 like the others. I still use it though. Great for tighter builds. |
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@quikj Useful to know about the need of Flyplus to get RSSI from the Flit10, so probably won't work on my Turnigy TGY-i10 either.
I've been mainly flying micro brushless and the FS-RX2A Pro has done well with those so haven't persued being able to see the RSSI on my FPV feed, it's only in the last few months I've properly started to fly 5" quads and with the speed/size/weight of them I don't want a failsafe that could lose it or cause damage/harm. Spent some time looking into RSSI options and it appears several FlySky compatible RX's do have an analogue RSSI output point if you can solder a tiny wire onto it (i can) and attach it to the RSSI input of the flight controller - none of the FCs in my micros have that but my 5" do. I'm willing to bet there's a point on the Flit10 that has analogue RSSI output to get signal strength on the OSD. right now both my main 5" quads are grounded, one with a dead motor, the other with a broken arm that happened yesterday:
I got replacement arms in the post already, when they arrive I'll investigate RSSI stuff further. |
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