Specifications
4 - 8 12/16/97
System Shelter. The Complete-system Shelter is designed to provide weather protection for a complete
weather station, including the optional solar power regulator and battery and a radio. Figure 2 illustrates the
mounting in a System Shelter of a solar-powered station with YDI radio and an Alarm Output Module
providing the power conservation control.
Multi-Purpose (MP) Shelter. The MP Shelter is a smaller enclosure suitable for housing a Sensor Interface
and Console or a radio and its protector. The MP Shelter is useful when the radio must be located on the
antenna mast, exposed to weather. Figure 3 shows an RF Neulink radio mounted in an MP Shelter at the
base station with a Short-range Modem and Protector.
Small Surge-protector (SSP) Shelter. If it is necessary to add an extension co-ax antenna cable to a Davis-
supplied antenna with BNC connector, weather-proofing is necessary. The SSP Shelter will shield the
connection from rain or spray. Black electrical tape should not be used. Type N connectors are watertight.
DAVIS-SUPPORTED EQUIPMENT
The following radio and cell-phone products are specifically supported by the listed antenna kits and options
from Davis Instruments. Other products may well be suitable for a wireless communications need. For more
complete specifications see the individual product data sheet.
SPREAD-SPECTRUM, 902-928 MHz
Radio YDI RM910-DAVIS
RF Output Power: 20 mW
Current Drawn: 180 mA, 12 VDC, receive and transmit.
Order from YDI (see page 9).
Antenna Kits
7632-003: Antenna Kit with 3dB omni (6-foot antenna cable)
7632-008: Antenna Kit with 8.5 dB Yagi (6-foot cable)
7632-912: Installation Kit for YDI 12 dB Yagi antenna (12-foot cable)
Options
7683: Antenna Surge Protector and cable.
7708: Solar Power Kit: (requires AOM or Timer)
NARROW-BAND UHF, 450 to 470 MHz
Radio RF Neulink Neulink 9600
RF Output Power: 2 Watts, typical
Emissions: 16K0F1D, 16K0F2D
Current drawn: 100 mA, receive; 900 mA, transmit, at 10 – 15 VDC.
Order from RF Neulink (see page 9)
Antenna Kits
7642-002: 2 dB Omni (6-foot antenna cable)
7642-010: 10 dB Yagi (6-foot antenna cable)
Options
7683: Protector and cable
7708: Solar Power Kit (requires AOM or Timer).
CELLULAR TELEPHONE
Transceiver Motorola CTM 2400
RF Output Power: 3 Watts
Current drawn: 0.27 A, standby; 1.8 A, transmit.
Order from Motorola (see page 9). Requires service subscription.
Option: Handset. Permits voice calls to and from station.
Antenna Kit
7652-003. 3 dB omni (6-foot antenna cable)
Options
7681: Protector.
7708: Solar Power Kit (requires AOM or Timer).