Brian Dorricott 1

Little tip when checking range , the transmitter is approximately 10db down on power (10%) for the test . As the human body is mainly water ( or beer ) the attenuation is anything from another 10db plus so shield the receiver with your body and if its OK then it will work way beyond your ability to see the model on full power .

Glad this thread came up , I took an AR8010T out of a model a year ago took off the satellite receiver for another model and put it in my receiver box . Took it out without sat rx and thought it had died and nearly threw it away - that was a close !

I have bought some of the above rx and generally they are excellent and reasonably priced at £26 or so . Work really well and easy to setup once you get the hang of them . A couple of caveats though , if you buy one with a current sensor it will measure current but on a Spectrum "flight battery mAh" telemtry widget it will not register as its not compatible. This is confirmed by the chap on Ebay who kindly contacted Lemon for me after I'd pulled my hair out for 2 days trying to get it to count mAh used . Second caveat if buy them with just the voltage probe ( works fine ) they are not calibrated for the current probe so if you add a current probe later it needs calibration which is in the very fine documentation available for Lemon and isn't difficult. No connection with Lemon or any resellers just passing on my findings .

Leccyflyer yes it's that simple to monitor pack voltage the ground is through the receiver itself , just the one wire .

You may have seen my posts about not reading current on the above receivers now resolved has brought me to another little problem . I measure current on the Lemons with XT60 sensor and it reads perfectly in telemetry but if I look at flight pack mAh it does not display anything doesn't go up from 0 mAh . Substituting another TX is the same current read but no flight pack mAh used so out with Radiomaster TX16S and it reads current and if you make a calculated widget it shows how much current used as it should . On the Spectrum you can't change anything parameter wise but isn't it strange it's measuring current but not the accumulated current ? Anyone any ideas why because if it reads current and it measures time that's all it needs surely .

Fairly easy to do Frank if you have the later Textgen ones , voltage needed 8.4 volts so fully charged lipo and a load of 4 amps for the current . If you want a quick and dirty test a 55 watt 12 volt headlamp bulb draws about 4.5 amps . I being a bit of perfectionist set mine spot on but used esc/motor/battery/wattmeter and a servo tester with the current sensor in line and started it until I read 4 amps then calibrated the Lemon which was on a separate battery but I had 5 receivers to do . You can do the same by pushing the buttons on the Lemon if Textgen isn't available but looks a little fiddly for sausage fingers me ! Couple of things if you have a well equipped man cave , use a bench power supply to do the 8.4 volts so its exact. For the current sensor I found some high power resistors to get 3 ohms and varied the volts on bench power supply to get exactly 4.0 amps draw for calibration . Sorry I've being doing this sort of thing all my working life so hard to stop I retirement 🤪

Ok sorted now . I despite never having been in the calibration screens had to calibrate each one separately for current and voltage . I would have thought out the box they would have worked on or about the ball park but not showing anything . I can understand the one where I factory reset it but the others , no idea . Thanks anyone for thinking about it .

No but i will do !

Let me start by saying I have nothing but praise for these receivers , great features and rock solid stabilisation regardless of setup , manual or textgen and who in the Spectrum world can complain at the price . Yes there's a " but " coming with the above regarding the current sense telemetry . I have only 3 working receivers that measure current and about 7 that don't, before anyone suggests it I've swopped working XT60 connectors around and factory reset all the suspect ones and even used a different transmitter ( NX10,DX6G2 and TX16S ) all to no avail . Still resolutely refuses to show any current draw at all right up to a measured 30 amps on the ammeter . Everything else on the suspect ones looks good vario, altitude etc it evens finds current when I delete all telemetry and rediscover but stays on 0 amps on all 7 receivers . The 3 good ones will display from a few mAh to 10s of amps reasonably accurately and I know you can calibrate them but you have to have a display first ! It's not going to stop me using them because the basic functionality is fine and I only want to know what current I've used on my EDFs which eat batteries otherwise its not really necessary. Anyone used these a lot and knows of any foibles quirks etc that may help. Just as an aside they are all later models with textgen and some were bought with the XT60 current sense together ??? Wonder if there are different software versions must check the software versions when I've an hour to spare.

Hi Built this years ago and got it out to fly but can't find the plan or name and need to know the CG . Anyone know off the top of their heads ? Cheers in advance .

Due to a little matter of the battery falling out and our existing Apprentice ending nearly 40 metres up a tree we ( Sale MFC) need a new trainer . It can be a bit tatty and doesn't have to have the AS3X receiver I as long as it's complete otherwise and flyable . Riots and others are OK but the Apprentice is a very forgiving old bird for training . So anyone got one they have grown out of sitting in the hanger gathering dusk ?

Just looked at this thread , where can I find the build instructions and code . Not sure it's an existing topic or not searching didn't help.

The program above is fine when it's a known FMS model but can you fine tune it all ? For instance reverse the location or turn gains up/down etc . Just interested if possible as a few of them have made it into my junk box ( Pitts and I think a Ranger ? ) .

Got to the bottom of above problem . Ethos Suite installed version V3.0.2 and you access the setting up a different way not through the LUA script .

Hi all, I've a little problem with one of the TD SR6 stabilised receivers, I set it up , calibrate it but cannot get it go into self test as several YouTube videos show . TX is X18s with latest software 1.6.1 Eu/LBT internal RF module 3.0.1 The receiver a TD SR6 latest firmware 3.0.1 Latest LUA Scripts V3.0.1 It calibrates reverses directions switches in and out stabilisation but will not do anything when I select the self test , I'm expecting something flashing then I would move all the surfaces and job should be good . It actually works in stabilisation mode as it should using a pot to control gain and in levelling mode. I've tried various forums but can't find anyone with the same problem despite watching Mr D on YouTube and others who show it doing as it should . Has anyone seen this problem or is there a little step I'm missing ? As usual any pointers welcomed because I don't want to commit aviation without it doing a self test first .