 MDS?????????SCADA?????????????????????????????????????????????????豸?????????????????????С??????????????á????????г???????????????г??????????????????????г???50?????????豸?????????????????á??????????????????????????г??????70%?????
MDS??SCADA?????п?????????????????????????????????????????Χ??50?????????????????????????????????????????EIA-232?????????130??900MHZ??????ε???????????????л??????????????????????м?????????????????????????????????
?? ?? ? ??
?????
????Χ
(220 MHz): 220 to 240 MHz
(450 MHz): 330 to 355 MHz??355 to 380 MHz??380 to 400 MHz??400 to 420 MHz??420 to 450 MHz??450 to 480 MHz??480 to 512 MHz??406 to 430 MHz (Canadian Plan)
????????: 1.5 ppm, -30 to +60?? C
?????: 12 dB Sinad @ -116 dBm
??????????: 1x10-6 @ -108 dBm
????: 12.5 kHz
????????
???: -30 to + 60?? C
???: 0 to 95% @ 40?? C
????:
?忨:0.13 kg
???: 0.45 kg
???:
?忨11W x 1.9H x 9.5D (cm)
???:16.5W x 4.4H x 12D (cm)
????????
?????????75 ma typical @ 13.8 Vdc
?????????480 ma typical @ 13.8 Vdc????????? 2 watts??
??????
???????RS-232?? DB-25 ???
????????1200, 2400, 4800, 9600, 19200, 38400 bps
???????????????: 9600 bps
?????????: < 15 ms ?????
?????
????Χ (220 MHz): 220 to 240 MHz
????Χ (450 MHz): 330 to 355 MHz??355 to 380 MHz??380 to 400 MHz??400 to 420 MHz??420 to 450 MHz??450 to 480 MHz??480 to 512 MHz??406 to 430 MHz (Canadian Plan)
?????: 6.25 kHz or 5 kHz(?????趨)
??????: 4 Level CPFSK
???????: 100 mw, 1 Watt, 2 Watt ???????(+20dBM, + 30dBM, +33 dBM)
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