Page 14
Spread-Spectrum Radio Modem Installation Kit
T
ESTING
THE
R
ADIO
Before proceeding with the installation, test the radio modem (RM) by assem-
bling the field station(s) and base station in the same room. Make sure to test
each field station RM before installing.
Follow the procedure below to test the station.
1. If necessary, connect the weather station to the WeatherLink and install the software
as explained in the WeatherLink manual.
2. Position the antennas for the field and base stations at least 8’ (3 m) apart and orient
them as described below, depending on the type of antennas you are using.
✦
Omni-Directional
If using omni-directional antennas, orient the antennas at right
angles to each other.
✦
Directional (Yagi)
If using directional antennas, place the antennas horizontal, at the
same level, with the booms parallel.
✦
Omni-Directional and Directional
If using omni-directional and directional antennas together, place
the omni-directional antenna in a vertical position and the direc-
tional antenna horizontal, pointing 90˚ away from the omni-direc-
tional antenna.
3. Connect the field station radio modem as shown below. Plug the power adapter into a
wall outlet and make sure the radio modem’s Power light comes on.
Separate antennas by 8' (2.5m) minimum.
8'
8'
8'
FIELD STATION:
To Power Adapter
To WeatherLink
To Antenna
L1
Radio Modem
Part
7870
WeatherLink
®
PHONE MODEM
Adapter
L1
