I was thinking the same! Its very impressive he got that far with a wrong coil antenna, I used a bought antenna that was specially advertised for this Lora and it gets 3km!

Same lmao. Wtf

Yes. Seeing the paper getting wet and coming off in rolls as he go back and forth

I'm glad I'm not the only one to wonder, "why is he so angry at that paper?"

yeah that's been bothering me a lot... why cant he just do one pass? seeing the ink get smeared across the words and staining the tip of the highlighter is awful

Same

Hello! Do you mean the NRF24L01 + PA? I also want to make an RC plane and I did not know if this module works for me

You are right, without antenna module works 20-30m very pretty, and with antena module I got more then 450m clear renge

You trolling him? or appraising ?

That is impressive.

GreatScott! I think the antennes you used for the LoRa boards where not designed for that frequency. That's why you got so little range!

Niels Daemen - That was my thought too. The antenna is incredibly important for successful results, and at UHF, every millimetre makes a difference. The good thing about 868MHz is it falls into a sweet spot where very high gain, yet compact antennas can be made, without the very tight tolerances when working at 2.4GHz. A non resonant, omnidirectional helical without a decent ground plane makes a very poor antenna. Might as well use a coat hanger! :-)

I was thinking about your antenna video... :D

Are you joking

Even polarization of antennas makes a huge difference at times. Try rotating something 90 degrees and watch the strength and overall snr change.

​@@nobodynoone2500 I have a question, I have two generic RF modules with 17.3cm copper antennas, is connection best at longer ranges when both antennas are vertical or when both are horizontal? If I understood correct they should be at the same angle, but which orientation

I discovered this when starting with BLE. I have to disable bluetooth on notebook to get communication working. 😅

@iscuit verticle relative to ground, I would say.

Agree

same thing that I thought

True

How can I find out with which antennas this module can transfer data at a range of 1-2 km? Can you help me with the keywords I need to find the range I need in the outdoor LOS field using the Friis Transmission Equation? Everyone has stated that it provides 2 km + data transfer, but there is no clear information about RF setups.

True that. I've been using a pair to fly my quadcopter. It works really well.

+Praveen Elumalai Not True. It could exceed > 300m. It depends on the On Air Data Rate (which increases Rx sensitivity when lower data rate), whether the board has external PA chip, the packet configuration (e.g. ACK/RETR), etc.

Chun Ho Kong may be but not as much as 1km.

it is lie, i got sometimes 1,5km and sometimes 350 m

2KM for me, with on board PA enabled. Either you got a bad module or your configuration is incorrect. I have seen boards with PA on board, the CE (Chip Enable) pin of PA is tied to the SPI CS, so you need some special treatment on the software. Using 250Kbps as suggested by +ICT above and max Tx power will also in result a better performance.

Thanks for the feedback :-)

when we talk about radio waves: the antenna is everything: an old saying between radio amateurs is: a dollar for the transmitter and a thousand dollars for the Antenna! I met someone who connected Italy to the USA with a home made CW (continuos Wave) transmitter of just three low power transistors (one was only for the switching (keying) circuit) and a long wire antenna

There's a project currently going on in Tasmania involving custom L.o.R.a configurations w/ antennas (about 30cm long), we're getting transfer distances of up to 12km, and more is do-able

I bought antennas with my modules from Sparkfun and was able to get about 2km with just the default configuration. So yes, it's much more Long Range than the others. It does have a low data transfer speed though.

I've gotten a couple hundred metres out of the generic 433MHz modules using just a wire as the antenna with a length of 173mm. Pick those over the 315Mhz modules. I just used serial lines, a sensible speed is about 1200 baud. The receiver has AGC so it's always picking up garbage. It's probably worth a few more dollars to get modules that do the signal validation themselves, depending on how you value your time but limitation breeds creativity. The serial input data (in the receiver) never stops, it needs some serious filtering in software. Before sending anything I send a preamble to get the receiver and serial line synched up, then I compute a checksum, send a header, data, packet id(just a counter), checksum. I send the same thing about 5 times for redundancy. When the receiver gets the header, the packet data is recorded and the expected checksum is computed. If it matches the one from the transmitter, nothing messed up and so it gets further processing. The packet id is also saved so if other copies receive ok they can be ignored. I've only seen it screw up twice in years but that was the first version and those packets were only 3 bytes long

Was about to comment the same about the 4KB/s meaning kiloBytes which is 32 Kilobits/Second. You beat me to it.

Shit I posted the same without seeing this....

Same here.

Oops! just posted a comment about this...

Would you like to explain what you're doing differently?