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Telephone, Comms & Monitoring

Sonifex DHY-04G Single Automatic GSM Hybrid

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Sonifex DHY-04G Single Automatic GSM Hybrid

Now available for hire/rental

Sonifex DHY-04G Single Automatic GSM Hybrid

A new addition to the DHY-04 range is the ability for the DHY-04G version to be used on a GSM cellular (mobile) phone network instead of a telephone (POTS) line. The DHY-04G can accept a SIM card in the rear panel slot and by connecting a suitable GSM antenna, the DHY-04G can receive and make high quality broadcast calls over the cellular network, converting the GSM call to the 4 wire audio signal to and from a connected mixing console. The GSM module used in the DHY-04G is quad-band GSM, so it can take and make calls on any 2G network.
Ideal for studios in remote locations, for OB vans and trucks on the move, and in emergency situations where a telephone landline can’t be guaranteed, the DHY-04G offers outstanding performance.
The DHY-04G has all features of the DHY-04 (read cellphone/mobile features instead of telephony features in the listed bullet point specification) together with some additional front panel indicators. There are two LEDs, one for SIM enabled and one for GSM Network availability. Additionally there is a push button which allows the GSM signal level to be displayed on the meter LEDs.

Technical Specification For DHY-04G

Audio Specification


Analogue Audio I/O

Input Impedance - Line Mode (Clean Feed): 10kΩ balanced 0dB
Input Impedance - Conferencing: 10kΩ balanced 0dB
Input Impedance - Microphone Mode: 2kΩ balanced
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: 50Ω balanced floating 0dBu
Output Impedance - Conference/Record: 50Ω balanced floating 0dBu
Output Level Gain Range: +6db, 0dB, and -6dB adjusted by 3-position front panel switch

Digital Audio I/O

Input Impedance: 110Ω ±20% balanced
Output Impedance: 110Ω ±20% balanced
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 Input Level for Full Scale Digits: +18dBU

Telephone Line

Rejection Ratio: 80-88dB on complex waveforms, reference peak level of 0dBFS
Ring Detector Sensitivity: Off, 2, 4 or 6 rings

GSM Connection

Module Type: Quad-Band EGSM 850 / 900 / 1800 /1900MHz
Output Power: Class 4 (2W) @ 850 / 900MHz,
Class 1 (1W) @ 1800 / 1900MHz
Sensitivity: -107 dBm (typ.) @ 850 / 900MHz,
-106 dBm (typ.) @ 1800 / 1900MHz
Approvals: Fully type approved conforming to R&TTE CE, GCF, FCC, PTCRB, IC, Anatel

Power Supply

Power to DHY-04G, GS & GT Universal 12W power supply: 90 to 250V AC; 47-63Hz; fused 1A
* These values are dependent on the actual country setting selected on the DHY-04


Mic/Line/AES-EBU Input: XLR 3 pin female, with push-button mic/line selection
Line/AES-EBU Output: XLR 3 pin male
GSM Antenna SMA socket
Conferencing or Record Audio: RJ45 socket
Remotes: 9-way D-type socket
Ethernet: RJ45 socket
RS232 Serial: 9-way D-type socket
Power: IEC mains (CEE22)


Hire/Day ex VAT: £0.00
Hire/Week ex VAT: £0.00


For best possible price why not ask for a quote

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Television Film Services
Middle Ollerbrook House
Edale, Derbyshire
S33 7ZG
T: 0114 249 5902
F: 0114 221 4496
M: 07831 666 899


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