Anti Interference UHF Terrestrial DTV Transmitter 80MHz Low Power

GT-5900

Low Power UHF Terrestrial DTV Transmitter

      Gospell’s GT-5900-500 Series is a low power UHF terrestrial DTV transmitter, which inherits the high performance, high stability and high reliability of Gospell’s many products. It can work in any frequency within UHF span, and the transmitting bandwidth is up to 80MHz. By incorporating our latest technologies of linear and non-linear digital adaptive pre-correction, RF delay and co-channel interference rejection, this system can fulfill the needs of single band or broadband transmission in small to medium-scale terrestrial coverage scenarios.

      This series of products, which has advance design and simplified architecture are small in size, with the advantage of lower noise, higher efficiency, and outstanding anti interference performance. They support DVB-T/H, DTMB, ATSC, ISDB-T/Tb and DVB-T2 standards, thus having greater flexibility and suitability in actual deployment.

Main Features:

• 470 to 860MHz
• Compact structure, supporting up to 500W digital output power
• Linear & non linear digital pre correction function in exciter
• Modular design across the whole system, easy installation, maintenance and / or upgrade
• Low power consumption with high efficient LDMOS amplifiers to reduce electricity costs for operators
• Suitable for different countries and/or areas because multiple DTT standards are complied with, including DVB-T/H, DTMB, ATSC, ISDB-T/Tb and DVB-T2
• Low power consumption with linear design, further improves transmitting power and minimizes non-linear distortion, to satisfy transmission requirements of single band and broadband
• Built in color TFT LCD with touch screen in front panel of rack, supports monitoring & control of working states and any malfunction for any module without additional testing/monitoring equipment required, such as transmitting power, VSWR, working voltage/current, fan speed, IP address and so on
• Extreme low group delay for DTV signal transmission
• Multiple protect mechanisms are introduced for over load, over temperature, over current and high VSWR
• Large and dynamic Auto Gain Control (AGC) circuit ensures stability of output power
• Suitable for single channel or broadband transmission enabling low-cost DTV network coverage

Technical Specifications:

Universal Specifications	Ordering Codes		GT-5900-400	GT-5900-500
	Output Power(RMS) *		400W	500W
	Number of Power Amplifiers		2 x Power Amplifier Modules
	Frequency Range(FIN)		470 to 860MHz
	Channel Bandwidth		6MHz, 8MHz
	Supported Standards		DVB-T2, DVB-T/H, DTMB, ATSC, ISDB-T/Tb
	Transmitting Mode		Standard: Single band Optional: Broadband (maximum 80MHz)
	Supported Network		SFN or MFN
	Cooling Method		Forced Air Cooling
	Notes: * The above output powers are calculated per ATSC/ DTMB standards under single band mode.
Main Components	Preamplifier		1 x Preamplifier module(3U)
	Exciter (Optional)**		1 x DVB-T2/DTMB Exciter(modulator) (1U)
	Power Splitter and Combiner		1 x Distributor & Synthesizer (3U)
	Monitoring and Control Unit		1 x Monitoring control unit(2U) with 7” LCD touch screen
	Bandpass Filter(Optional)		Optional Single band or broadband Bandpass filter
	Notes: ** Please contact our sales representative for the other exciter/modulator requirements.
Power Supply	Power Supply	Three-Phase Option	4 wires (3-phase + neutral), 342-418V AC, 50Hz±5%
		Single-Phase Option	2 wires, 190-250V AC, 50Hz±5%
	Surge Protection		Built-in AC Surge Protector
Environmental	Operating Temperature		0 to 45°C
	Operating Humidity		0 to 95%, non condensing
Mechanical	Dimensions(W x H x D)		650mm x 1480mm(27U) x 870mm 25.6’’ x 58.3’’ x 34.3’’
	Weight		180kg (396.8 lbs)
I/O Interface	TS Input		DVB-ASI (BNC female, 75Ω) (DTMB/DVB-T2 Exciter)
	MPEG-TS over IP		100/1000Base-T, RJ-45 (DVB-T2 Exciter)
	RF Output		EIA 1-5/8’’ flange
	1PPS Clock Input		BNC, female, 50Ω(DTMB/DVB-T2 Exciter)
	10MHz Clock Input		BNC, female, 50Ω(DTMB/DVB-T2 Exciter)
	RF Monitor Output		SMA, female, 50Ω
Monitoring & Control	Local Monitoring & Control		TFT LCD touch screen
	Network Management Interface		10/100 Base-T Ethernet, 1 x RJ-45, Supporting Web-browser or SNMP network management
Electric Performance	Frequency Stability		≤ ±1 x 10-7(Internal reference) ≤ ±1 x 10-10 (External 10MHz reference clock)
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