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CHS-628: HSDPA/WCDMA USB Data Modem CHS-628 is a high-speed HSDPA stand alone modem with the maximum download speed of 3.6Mbps and upload 384Kbps. Upgrading the S/W can increase the download speed to 7.2Mbps. CHS-628 is a stand-alone type and is more suitable for the use in fixed positions in houses or offices. Two external antennae increase the reception level. LED enables users to check the performance more easily and the external power switch and reset buttons make the device more user-friendly. Technical Specifications DATA SERVICES HSDPA (category 6) · Forward link up to 3.6Mbps · Reverse link 384Kbps WCDMA · Forward and reverse link speeds · up to 384Kbps * Limit to Network conditions   GENERAL FEATURE Qualcomm MSM6280 chipset (ZIF) MRD (Mobile Receiver Diversity) Maximum RF Output Power · 2100MHz - Power Class 3 · 850MHz - Power Class 3 Receiver Sensitivity: · 2100MHz under -107dBm(BER=0.1%) · 850MHz under -106dBm(BER=0.1%) Nominal Operation Voltage: · from USB host Power Power Consumption: · Maximum :under 500mA · Typical : under 300mA   FREQUENCY BANDS WCDMA 2100MHz(Band Class 1) WCDMA 850MHz(Band Class 5)   ANTENNA SMA type Primary antenna SMA type Secondary antenna (internal)   STANDARDS 3GPP Release 5 compliant 3GPP TS31.101(UICC) 3GPP TS31.102(USIM) 3GPP TS34.121   SYSTEM REQUIREMENTS Window 2000/XP/Vista Connection: USB Socket Disk Drive: CD-ROM Processor: 667MHz or faster Memory: 128MB Disk Space: 200MB   MECHANICALS Dimension: 90 x 31.5 x 9 (mm) Weight: 23g 2 state LED   ENVIRONMENTS Operating Temperature: -20'C to 50'C Storage Temperature : -30'C to 70'C Humidity: 95% (non-condensing)   APPROVALS FCC Parts 15, 22 and 24 (2006. Q4) Microsoft WHQL certified NDIS drivers

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