LowPowerLab Forum

Hardware support => RF - Range - Antennas - RFM69 library => Topic started by: ulli on August 18, 2015, 09:03:11 AM

Title: min antenna distance
Post by: ulli on August 18, 2015, 09:03:11 AM
I plan to use 3 different RFM69 modules next to each other. One 433Mhz and two 868Mhz modules with a distance between two antennas of ~2cm.

I am thinking about if there is an advantage or disadvantage in the order of the modules/antennas.

e.g. 868Mhz – 433Mhz - 868Mhz     or   868Mhz - 868Mhz - 433Mhz

Do you think it does anyhow make a difference?
Title: Re: min antenna distance
Post by: ulli on August 18, 2015, 03:37:35 PM
no proposals?
I think  868Mhz – 433Mhz - 868Mhz would be best?
Title: Re: min antenna distance
Post by: Felix on August 18, 2015, 09:02:20 PM
If you're asking for an opinion, mine is that it should not make a difference.
Doing a real test is far better than a guess  ::)
Title: Re: min antenna distance
Post by: ulli on August 19, 2015, 03:04:48 AM
All right, thx!