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Technical Specification 7
7 Technical Specification DHY-04G, DHY-04HD
Audio Specification Analogue Audio I/O
Input Impedance - Line Mode (Clean Feed):
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Input Impedance - Conferencing:
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Input Impedance - Microphone Mode:
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Input Level Gain Range:
-6dB, 0dB, and +6dB adjusted by 3-position front panel switch, +10dB jumper
Microphone Level Gain Preset:
From 65dB to 35dB
Maximum Input Levels:
Line +26dBu, mic -24dBu
Clean Feed Limiting Input:
-4dBu for CTR21 setting, other values available *
Output Impedance - Line Out:
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Output Impedance - Conference/Record:
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Output Level Gain Range:
-6db, 0dB, and +6dB adjusted by 3-position front panel switch
Digital Audio I/O
Input Impedance:
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Output Impedance:
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Sample Frequency Range:
30 - 100kHz (i.e. including 32kHz, 44.1kHz, 48kHz, 64kHz, 88.2kHz & 96kHz)
Signal Level:
2V/7V peak to peak min/max
Analogue equivalent Level for Full Scale Digits:
+18dBU
Maximum Input Level:
0dBFS but internally limited to -6dBFS
Maximum Output Level:
-6dBSFS
DHY-04G Cellular Connection
Module Type:
Quad-Band EGSM 850 / 900 / 1800 / 1900MHz
Sensitivity:
-107 dBm (typ.) @ 850 / 900MHz,
-106 dBm (typ.) @ 1800 / 1900MHz
Approvals Information:
Quad Band GSM/GPRS 850/900/1800/1900 MHz.
• Output Power Class 4 (2W 33dBm) @ GSM 850/900.
• Output Power Class 1 (1W 30dBm) @ GSM 1800/1900.
• Fully Type approved conforming with R&TTE.
• European - CE, GCF.
• North America - FCC, PTCRB, IC.
• Brazil - ANATEL.