openrcforums

Billthetug wrote:I have set the alarm at 9.6 and the battery calibration at 9.9 hope this is correct now

You should really measure the battery voltage with a multimeter and then adjust the calibration, so that the voltage indicated on the transmitter matches what you had/have on the multimeter.

I started (beginning last year) insisting that my students learn from the start by pinching and with a tray. I've even custom built trays to accommodate smaller hands. My opinion is that nobody goes to a college prof or high school teacher and says, this is how I want to be taught - so they can eit...

Cheers... As you can see João. This isn't an ideal modification for thumb fliers and in some ways a good reason to convert your style.

Thanks for the sacrifice Mike. Appreciated. :) After much grunting along with wrecking the shaft pulling it out, there was a nice hole that went pretty deep. A small 2mm hole was drilled in the side of the stick holder for the wire,, along with enlarging the hole for the new joystick. Some care is n...

I am getting the urge to replace the throttle stick (which is my flap/brake control) with one that has a momentary press on switch as shown below. The switch would be used for fan off/on control. Micron_pushswitch.JPG So. Has anyone tried removing the original stick? The one in the picture has rough...

I agree with you on this part of your post.. Not the first part, sorry :) I definitely wouldn't like a tray radio and I also been waiting for this radio since before the taranis was even out ;) Sorry João. You should know that it is a lost battle to argue with a woman. :twisted: Now there is two of...

Did it all work before you flashed it to ER9X?

The aerials are horizontal. If the receiver aerials and the transmitter aerial is horizontal, then you are getting the best transmission path. I'm going to order some rat tail aerials and give those a go. They can be put through the skin of the plane if necessary. Is there any problem with getting ...

They are on the inside of the plane and near to some wiring and a closed loop rudder run. It's the only place I could mount the RX. How near are the aerials to the wiring? ... You need to keep the aerials as far as possible away from other wires. Anything right next to the aerial will have an effec...

The Rigexpert IT24 arrived today. So some quick tests made.. The 'normal' aerial (2dB) was checked, in fact three of them from Frsky were checked and found to have an SWR of 2.2:1 and it dipped lower at a higher frequency. Adding a bit to the 'whisker' to make the overall length of it to be 25.7mm d...

It gives the option of using a 5dbi omni, or a 7dbi patch. I wonder what the transmitter output power is, and if it can be changed or is changed to the different regions. Using the patch antenna in the UK would probably take you above the legal limit of 100mW ERP.... To be fair - the stock antenna ...

aerografixs wrote:I have been designing custom cases for the FrSky Taranis radio, the first I did was for myself since I am a tray style user and didn't like the cheap case of the Taranis

Nice end result... The tray format really is the way to go..

Great to hear that it is all working now and that the 5 Volt regulator modification went well.

I got my Digital Multimeter out and checked the Stock t9x Gimbals Potentiometers and found that the wiring between the Vertical (Throttle) and horizontal (Rudder) Stock t9x Potentiometers are different. The Black +5 Volt wire is swapped with the Red Ground wire, which explains how there is a differ...

Pity but I tend to agree with what Dave West said somewhere else. Things have moved on at a heck of a pace since he came out with his product line and for many (as we know) it is hardly worth making anything electronic for sale as the costs of tooling up and the lifespan of a product is pretty short...

Pity ... Time to keep an eye open for a Sky board.

Looks good Bertrand.

Will this be implemented for the 9X and the M128 transmitters, bearing in mind that many are fitted with Megasound cards where the buzzer output is fed to the speaker via the LM386 amplifier?

Bill. It's better than a hole in your shoe with all this water around. ---> Traffic - Hole in my shoe

Thanks rperkins and all... The talk is all about antennas and what not to do with them and how to spot a Lemon. All this hopping stuff and related items are outside the scope of the talk. Having looked at the RSSI side of the RX it seems that it isn't much use when working close in. So now I'm waiti...

jhsa wrote:he has another board that is damaged and will try to use one of it's resistors..

I missed that.. IMO that isn't such a good idea as the chances of getting the resistor off the other board and then soldered onto the other board without overheating or damaging the SMD resistor is slim.

Great news,.... The resistor that you are looking for has a case size type 0603 SMD with a value of 5K1 Ohms.

So type in '0603 SMD 5K1' into Ebay and you will get a number of hits. Of course you may find it cheaper somewhere else..

I agree with what Mike has said.

The resistor circled (which is hopefully the one that you were measuring that showed to be open circuit) should measure 5.1 K Ohm. The brown/yellow items are capacitors and what you were measuring there looks fine.

I think next I should replace the burned 5.12 ohm Safety Fuse Resistor. As far as I'm aware, there is no safety fused resistors in the TX. By your comment regarding the resistor being burned. Do you mean that it measured open circuit? If it is the other way around, it is a rare thing to find a resi...

Gosh Kilrah! Some pilots like to have music playing from their Taranis while flying .. One wonders what will be next.

Ohh!! ,,, The data sheet says - "A7105 has built-in 8-bits ADC do RSSI measurement as well as carrier detection function". Maybe that is enabled by so coding.

I love good old analogue. No nasty bits to lose.

Yes it is for a club demo at the back end of this year. Thanks for the offer Bill it's much appreciated. I do have enough time to construct something from the junk pile that is full of failed and unfinished projects that can be put to good use in this project.. I keep thinking that somewhere on a Fr...

I do recall a long while back that Opentx did have a voice output of two decimal places. It was a real pain in the backside. I can understand what you are saying. I do agree with Mike. The error of around 0.05 Volts from the A-D converter combined with any other errors created by changing current dr...

There is a slight chance that you could detune the antenna by doing what you suggest, but I doubt that it would have much of an effect. Past experience of Frsky receiver antenna's have shown that they are a long way from what they should be in practice. Final opinion - As long as you are not going f...

Hi guys.. Someone has talked me into giving a talk on aerials (antennas to some people) later in the year. Using 2.4 Ghz will enable me to build a nice bonsai aerial farm to demonstrate the characteristics of various types of aerials without having huge arrays of metalwork around me. The ideal would...

It does look that all is well with the modification. But I then checked the stock 9x 3.3V Regulator and at the Yellow Right Terminal my Multimeter reads: 2.9.5 Volts to 3.3.0 Volts, output.. My TX reads 3.3Volts on the regulator output. The schematic I have shows the regulator to be a 6206A - 30 (3....