HC-12 error correction

[iw2fvo]

Hi to all in this forum,
I am using the HC-12 serial on 433 mhz . Port rate is 9600 8 n 1 and the HC-12 is set as per default.
The rig works but at distance of about 50 meters i do have errors.
How could I correct these errors ?
Any configuration suggestion ?
Thanks
Ambro

[Scampy]

I'm assuming it needs an antenna to get the quoted 1000m range these things claim to have... Otherwise I'm guessing that it's simply weak signals at a 50m range that's causing the rig to stop working after 50m

[iw2fvo]

Both HC_12's have their own antenna.
Data are received but some errors are present.
Thanks

[Scampy]

Are you saying that up to around 50m data is sent and received OK and then above 50m data is being lost or corrupted.. if so it could be 101 things such as a range issue with the modules (ie they are designed to only work up to 50m), interferance, or the modules are faulty.

[iw2fvo]

Thanks,
the modules are brand new and they have a standard 433 MHz rubber/ plastic antenna.
They are sold for about 1000 meters: I just need about 100 meters...
Is there any program that could recover the comm errors ?
Thanks

[gadelhas]

Hi;

I use those modules a lot.
The 1000m are of course in best of the best conditions, but 50m are very bad.

Look at the datasheet, to increse the range you need to decrease the baud rate, increase the transmitting power, changing the FU mode, even changing the frequencie can help!
( Datsheet - http://www.seeedstudio.com/wiki/imag...ser_Manual.pdf )