13-02-2015, 14:05
Hi there,
to be honest, I believe none of them had the gain they claim.
The first one that claim to have 6 dbi, looks like an ordinary wifi antenna (in wifi that really should be an 6 dbi antenna) ... and for 6 dbi for 433 Mhz, it just seems too shortest.
Anyway, unless you have a big distance between both equipments, probably any of them will work, although the first one seems nicer to be seen (I think).
From those, the only one that should be more precise on gain description probably it's the latest one. 2 dbi should be more or less 0 db (dipole) and that's what that antenna looks like, a dipole ...
to be honest, I believe none of them had the gain they claim.
The first one that claim to have 6 dbi, looks like an ordinary wifi antenna (in wifi that really should be an 6 dbi antenna) ... and for 6 dbi for 433 Mhz, it just seems too shortest.
Anyway, unless you have a big distance between both equipments, probably any of them will work, although the first one seems nicer to be seen (I think).
From those, the only one that should be more precise on gain description probably it's the latest one. 2 dbi should be more or less 0 db (dipole) and that's what that antenna looks like, a dipole ...