Hi all,
I'm trying to find an amplifier to boost two-way telemetry 3DR. Does anyone know where you can find one?
Cheers, Fausto
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Hi all,
I'm trying to find an amplifier to boost two-way telemetry 3DR. Does anyone know where you can find one?
Cheers, Fausto
You need to be a member of diydrones to add comments!
Replies
ISM band are vary from different countries. 2.4GHz is common in all over the world. But the distance is not suitable for the UAV telemetry. In the Sub-Ghz band, 433MHz, 315MHz, 868MHz and 915MHz are all available between different countries. RF4432 can support the band from 150MHz to 950MHz. It can support the local radio regulations.
None of those radios seem to have specs any better than the 3DR/HopeRF radios, and they're closed source so good luck getting them to do anything fancy.
The OP wanted something more powerful than 100mW.
I suggest the RFD900...
http://rfdesign.com.au/index.php/rfd900
It transmits a nice, legal 1W 900mhz band signal.
I highly suggest you don't hop up your already illegal 433mhz 3DR radio.
Hi
I have used these:
http://www.abacom-tech.com/500mW-RF-Power-Amplifier-PLA-05W-433AT-P...
This amp reduces the receiving sensitivity, better to use higher gain antennas without these amplifiers, currently achieve approx. 5km with a 1/2 wave omni on ground and std antenna on airborne side.
The 433 3DR radio already puts out well more than the legal limit on that band.
Probably not a good idea to put a heater on an already illegally operating device.
433MHz long range is up to 5km. I don't know whether it satisfy with your requirement.
http://www.appconwireless.com/NEWS/shownews.php?lang=en&id=13
Bidirectional 433mhz are hard/impossible to find. I had a 900Mhz from Shireen...(https://www.shireeninc.com/osc/amplifiers-bidirectional/900mhz-bidi...)
Don't waste your money. If you want real long range telemetry, it's with a dronecell on the cellular network. Check out "telemetry over IP" group, we are making progress....
http://www.alibaba.com/product-gs/510381128/JZ875_RF_Amplifier_Wire...