Antenna - DV Development Group DV4mini User Manual

TX (with 12 mW)
S-Meter
and <-50dBm)
DV4mini output power steps:

Antenna:

Comply with your country's regulations regarding automatic
operation!
The DV4mini requires an antenna. It must not be used without an
antenna. You can use the commonly available 'rubber ducks' with a
SMA connector like the ones used with walkies. The DV4mini must not
be connected to a high Yagi or similar antenna.
If you use a physically adjustable antenna, be careful that when you
adjust the position of the antenna you hold onto the base and not the
housing. Otherwise you may damage the SMA connector. The
DV4mini must be used only when you are nearby. Unmanned
operation requires in almost all countries separate licenses or
permits.
ATTENTION: Do not overload the SMA connector when handling the
antenna. Always hold on to the base and not the stick. Damaged SMA
connectors are not covered by warranty.
In order to utilize the stick in many countries the DV4mini covers a
large range of frequencies from 420 to 450 MHz. It is the operators
188 mA
1dBm resolution
accuracy +- 1dBm (> -100 dBm
10 steps
0 = 0.03 mW
1 = 0.4 mW
2 = 1.2 mW
3 = 2.4 mW
4 = 3.9 mW
5 = 5.5 mW
6 = 7.1 mW
7 = 8.8 mW
8 = 10.5 mW
9 = 12 mW
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