15-01-2024, 10:43 AM
Elrs already has solved my radio signal problems for line of sight flying at McCoy field, but the elrs project continues to improve the radio link in order to achieve better long range (ie 20 km) signal quality for fpv.
I (and I think other club members) do not need to upgrade to gemini. Normal elrs does the job, given the current level of radio interference at McCoy.
But gemini is amazing. You can now purchase a full featured elrs gemini tx by Jumper, or a gemini tx module that fits any tx that can run edgetx/elrs. Gemini rxs are available, indeed last saturday I noticed someone in the club is already using one.
To get a picture of gemini this website may be a good place to start,
https://www.youtube.com/watch?v=7NUzkUWB0Ls
You can buy the jumper gemini tx for AUD $271 from Aliexpress.
For more detail on gemini check the Bardwell review: https://www.youtube.com/watch?v=PZVUGKmBD24&t=928s
Bardwell uses the betafpv gemini tx module (cost AUD 130 from Fpvfaster) in his tests. https://www.fpvfaster.com.au/collections...tter-black
What is very interesting is the finding in the flight tests that using the module in the switching mode (so the tx signal is sent polarised in 2 planes at right angles, one antenna at a time) caused a notable jump in link quality performance. Having gemini mode working both in the tx and rx is required for maximum benefit, but there was a difference with just tx in switching mode.
I am very tempted to try this module, as there is fairly little time required to reconfigure everything on my tx and planes if you just use the tx module.
here is another test of gemini
https://www.youtube.com/watch?v=FoSREiyDQDA
I predict in a year or two we will all be using elrs gemini.
I (and I think other club members) do not need to upgrade to gemini. Normal elrs does the job, given the current level of radio interference at McCoy.
But gemini is amazing. You can now purchase a full featured elrs gemini tx by Jumper, or a gemini tx module that fits any tx that can run edgetx/elrs. Gemini rxs are available, indeed last saturday I noticed someone in the club is already using one.
To get a picture of gemini this website may be a good place to start,
https://www.youtube.com/watch?v=7NUzkUWB0Ls
You can buy the jumper gemini tx for AUD $271 from Aliexpress.
For more detail on gemini check the Bardwell review: https://www.youtube.com/watch?v=PZVUGKmBD24&t=928s
Bardwell uses the betafpv gemini tx module (cost AUD 130 from Fpvfaster) in his tests. https://www.fpvfaster.com.au/collections...tter-black
What is very interesting is the finding in the flight tests that using the module in the switching mode (so the tx signal is sent polarised in 2 planes at right angles, one antenna at a time) caused a notable jump in link quality performance. Having gemini mode working both in the tx and rx is required for maximum benefit, but there was a difference with just tx in switching mode.
I am very tempted to try this module, as there is fairly little time required to reconfigure everything on my tx and planes if you just use the tx module.
here is another test of gemini
https://www.youtube.com/watch?v=FoSREiyDQDA
I predict in a year or two we will all be using elrs gemini.