GINA RF Transceiver Set
Wireless connectivity provides the ultimate in flexibility for AWS Weather Stations. No longer do you need expensive cables to transfer weather data over long distances. The GINA RF Transceiver set makes this possible. Two high quality radio frequency modems duplicate the cable between the Digital Display and the Data Logger or the computer and the Data Logger. Because the connection is wireless, it is possible to place multiple Digital Displays anywhere within the 5 mile range of the modems. Accessing a Data Logger and phone line from a computer on the opposite side of a building is also a simple matter and the quality and clarity of the signal provides for a reliable data stream. The Gina Transceiver Set comes with two complete RF Modems and is custom configured to be either a computer/Data Logger link or a Data Logger/Display link. All necessary cables and adapters are also included.
Specifications/Features
General
Adjacent Channel Rejection : -40db +/- MHz
Baud Rate:
Asynchronous 2.4-38.4Kbps Half Duplex - Air Speed
Synchronous 16K-128Kbps Half Duplex - Air Speed
Channels : 21 Programmable
Control Lines : Txd, RxD, GND, RTS, CTS
Data Format : 8 bits, non-parity, 1 stop
Dimensions : 1.52"H x 4.17"W x 5.0"D
Dynamic Range : -100 dBm - -30 dBm
Frequency Range : 905-925 MHz
Indicators : PWR, TxD, RxD
Modulation : Bi-Phase Shift Keying (BPSK)
PN : 7 Stage (127 chip)
PN Rate : 2 MHZ (Optional 4 MHz)
Operating Mode : Point-to-Multipoint
Operating Temperature : -20 to +60 Degrees C
Output Power : 725 mW (28.6 dBm) maximum
PN Codes : 4 PN Code Sequence Varied within each channel
Power Consumption : 10 Watt maximum
Power Requirements : 10.5 to 13.8 VDC
Radio Technique : Spread Spectrum (Direct Sequence)
Range Nominal : 800 feet
Indoor : 500-1500 feet
Outdoor : Up to 1.5 Miles-direct line-of-site
Relative Humidity : 0-90% non-condensing
Transmission Delay : 15 mSec
Voice Option Interface : RJ11
Weight : 16 oz
Transmitter
Carrier Frequency Stability : +/- 15 KHz
Power Consumption : 750mA @12 VDC (28.6 dBm)
Spurious Output : 43 dB + 10 Log TxP
Receiver
BER 10-6 @ -92 dBm
Local Oscillator Stability +/- 15 KHz
Receiver Sensitivity -100 dBm
Receiver/Stand-by Power 450 mA @ 12VDC
Consumption
Signal Acquisition Time 8 mSec
Spurious Rejection -50 dB