Vaisala Hydromet Data Collection Platform - Manual (Page 360)

User's Guide ______________________________________________________________________
358 _________________________________________________________________ M210933EN-C
Radio Modems
Table 91 Radio Modem SATELLINE 3AS Specifications
Property Description/Value
Frequency range 380 ... 470 MHz
Channel spacing 12.5/25 kHz
Number of channels 160 / 80
Frequency stability <±1.5 kHz
Type of emission F1D
Communication mode Half-duplex
Carrier power 10 mW ... 1 W / 50 
Carrier power stability +2 dB/-3 dB
Adjacent channel power acc. to EN 300 220-1 / ETS 300 113
Spurious radiations acc. to EN 300 220-1 / ETS 300 113
Sensitivity -116 ... -110 dBm (BER <10 E-3)
Co-channel rejection >-12 dB
Adjacent channel
selectivity >60 dB/>70 dB
Intermodulation attenuation >65 dB
Spurious radiations
<2 nW
Interface RS-232 or RS-422, RS-485
Interface connector D 15, female
Data speed of RS interface 300 ... 38 400 bps
Data speed of radio
interface
19 200 bps (25 kHz channel) 9600 bps (12,5
kHz channel)
Data formats Asynchronous data
Operating voltage +9 ... + 30 VDC
Power consumption 1.8 VA typical (receive)
6.0 VA typical (transmit)
0.05 VA typical (when DTR is "0")
Temperature range -25 ... +55 °C (-13 ... +131 °F)
Antenna connector TNC, 50 , female
Construction Aluminum enclosure
Dimensions h x w x d 137 Ч 67 Ч 29 mm (5.4 Ч 2.6 Ч 1.1 in.)
Installation plate 130 Ч 63 Ч 1 mm (5.1 Ч 2.5 Ч 5/128 in.)
Weight 250 g (0.55 lb.)