User's Manual

Antenna
The antenna is an omnidirectional straight dipole which has a gain of 2,14 dBi and an impedance of 50 Ω
and is supplied with the module.
Other antennas with less gain are possible to use as well, e.g. a directly mounted λ/4-antenna with a
length of 32 mm.
The module should be used in “mobile” hosts with a distance of 20 cm from the user to the antenna only.
The following picture shows the directly mounted λ/4-antenna on the TC241-Module instead of the
omnidirectional straight dipole, which has more gain:
TC20-version of TC241 with λ/4-antenna