Gospell Gt-5800-4000s 4kw FM Broadcast Transmitters

Product Description

Gospell GT-5800-4000S 4KW FM Broadcast Transmitters Product Description Product Overview
The GT-5800-4000S FM Broadcasting Transmitter is our company's latest 4000W analog audio broadcasting solution.
This transmitter is primarily composed of essential components, including the modulation module, power amplifier module, control module, sampling module, and switch-mode power supply, among others.
It is ideally suited for various wireless communication applications, such as FM broadcasting, emergency broadcasting, campus broadcasting, and electronic countermeasures.
Main Features
Supports FM synchronous broadcasting. Complies with FM, CDR, DAB, and other FM broadcasting standards. FM frequency band is continuously adjustable via software. Power output is continuously adjustable via software. Incorporates the latest Ampleon LDMOS power amplifier tube technology. The power amplifier module features an efficient circuit design, achieving over 60% efficiency under optimal RF conditions. Supports MONO, STEREO, MPX, AES/EBU, and SCA/RDS signal inputs. Supports RDS and SCA subcarrier signal inputs. Utilizes an efficient, wide-voltage, modular imported switching power supply. Equipped with high-speed, low-noise axial flow fans. Automatically implements alarm and protection functions, including overcurrent, over/under voltage, overtemperature, overload, VSWR, and more. Powered by an ARM embedded processor with an LCD display, providing a visual GUI for intuitive human-computer interaction. Offers various priority switch-on and timing switch-on modes for flexible transmitter management. Supports mainstream network management interfaces and communication protocols. Detailed Photos
Product Parameters

L/R Input
Physical interface	XLR female
Number	2 (1x R &1 x L)
Impedance	10k or 600Ω balance
Input level	-13 to +13dBu
MPX Input
Physical interface	BNC female
Number	1
Impedance	10k or 50Ω unbalanced
Input level	-13 to +13 dBu
SCA/RDS Input
Physical interface	BNC female
Number	2
Impedance	10kΩ unbalanced
Subcarier level	-17 to -40dBu
AES/EBU Input
Physical interface	XLR female
Number	1
Impedance	110Ω balance
Input level	-60dBfs - 0dBfs
RF Output
Physical interface	1-5/8"(IF110)
Number	1
Impedance	50Ω
Frequency range	87.5 - 108MHz
Rated output power	66dBm(4000W)
Modulation type	Mono, Stereo, Multiplex
Carrier Tolerance	±100Hz
Residual Radiation	< -70 dB(L&R)
Parasitic AM Noise	< -50 dB
Distortion	< 0.05%
SNR	≥ 85 dB
Frequency Response	±0.01dB (No emphasis, No de-emphasis) ±0.05dB (Emphasis, De-emphasis)
Stereo Resolution	≥ 70dB(30Hz - 15kHz)
Level Difference	< 0.05dB(L&R)
Pilot Frequency Offset	±1Hz
Residual Component	< -60 dB@38kHz
Frequency Offset	MAX ±75kHz
Pre-emphasis mode	0/50/75uS
RF Monitor Output
Physical interface	BNC female
Number	1
Impedance	50Ω
Output Level	Approx. -50dB
Serial Interface
Physical interface	DB-9M
Number	1
Interface standard	RS485 Half Duplex
Management
Port	10/100 Base-T Ethernet
Number	1
Physical interface	RJ45
Protocol	Web/SNMP
Power
Input voltage	AC 220V±20% or AC 380V±20%, 50Hz±10%
Power consumption	Max 6700W
Environment
Working temperature	-20ºC - 50ºC
Working humidity	10 - 95% (non-condensing)
Atmospheric Pressure	86kPa - 106kPa
Physical
Size (Hx W x D)	1700×570×800 mm
Weight	≤75Kg
Cooling	Forced, with internal fan

Company Profile
FAQ Q1. What these equipments used for?
A1. We are original manufacturer in FM Radio & TV Broadcasting equipments; they are professional used for FM Radio & TV Broadcasting Station (Transmitting equipment.)

Q2. What equipment & solution your company can provide?
A2. We can do complete solution for FM Radio Station System. It includes:Studio--Link--Transmitter--Cables--Antenna.
We also can provide complete Transmitting part of TV Station. It includes:Link-Transmitter-Cables-Antenna.

Q3. How large areas can One Station cover?
A3. One FM or TV Station can cover one city or one town.
The Maximum cover ranges of one station can not over 100KM Radius because the Earth is Curve.
You can use Multiple Stations & Different Frequency to cover larger area.

Q4. How do I choose suitable equipments for my station?
A4. The most import factors are Power and Frequency.
We need to know the Power and Frequency you need exactly.
How long the distances do you want to cover in Radius?
How height your Antenna can be installed?

Q5. How to calculate Broadcasting equipment Cover Range?
A5. The Cover Range depends on 4 factors:1. Power from Transmitter; 2. Height of Antenna; 3. Gain from Antenna; 4. Around Environment.
Then we can know the cover range of your station.

Q6. Is the Frequency Adjustable?
A6. FM Radio Band Frequency is 87~108MHz, TV Band Frequency includes UHF/VHF band.
For FM Radio Transmitter; Power Below 2KW is all adjustable. Above 2KW would be narrow.
For TV Transmitter; all Frequency Band is very Narrow, only can contain around 3 Channels; so it's not adjustable.

Q7. Is your Analog TV Transmitter can be upgraded to Digital?
A7. Yes, we can. But the Frequency Band should be the same.
The only difference between Analog & Digital TV Transmitter is its TV Modulator.
After upgrade to Digital, the Power from TV Transmitter reduced 5 times.
For example: 1KW analog TV Transmitter can be upgraded to 200W Digital TV Transmitter.

Q8. How to do installation of these equipments?
A8. For small power station, the equipments are very easy for installation.
For large power station, we can send our engineer to your country to help you do the installation, but you should pay the cost.
We also can do training for your engineer here in our company.

Q9. How to operate these broadcasting equipments?
A9. We provide All-English user manual; All-English operation software in our equipment.
We also can do training for your engineer here in our company.

Q10. What about after sales?
A10. The warranty time is one year after goods leaving factory.
We can provide technical support from internet or in our company.
We can send spare parts to you directly when the equipment damaged.

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