20W FM Transmitter

• Type: Transmitter
• Function: Signal Transmitting Device, Signal Transmission Equipment, Signal Monitoring Equipment
• Certification: CE, ISO, SGS,BV
• Condition: New
• Output Power: 10W
• Frequency: 87.0-108mmhz
• Model NO.: ZHC618F-20W
• Size: 2u
• Transport Package: Export Wooden Box
• Specification: Professional
• Trademark: ZHC
• Origin: Hangzhou
• HS Code: 8525500000
• Production Capacity: 200PCS/Month

Product Description

ZHC618F-20W Digital FM Radio Transmitter 

 

• Professional FM transmitter(Exciter) with CD-quality broadcasting.
• All digital technology executes analog FM broadcast. DSP(Digital Signal processor)+DDS(Direct Digital Synthesis frequency) . Advanced MCU control system+big size LCD displayer.
• Columnar dynamic display audio signal . Supporting AES/EBU standard digital audio input. 30W RF power output with AGC. 19 inches stainless steel cabinet,2U high.

 
Features:

• Adopting new digital signal process(DSP)technology.
• Direct digital synthesis frequency (DDS)thchnology
• Columnar dynamic display audio signal.
• Perfect audio effect of CD sound.
• Supporting AES/EBU standard digital audio input.
• The standard frequency of RF output is 87.00~108MHz,with the step of 10kHz
• Electric control AGC controls the zero deviation of output power.
• RS-232 telemetering.
• 2U,19-inch standard chassis structure.

Technical Specifications : 

1. Frequency Range:            87.0MHz~108.0MHz
2. Frequency Setting step:      10KHz
3. Carrier Frequency precision:  ±200Hz
4. Output Power:                0~20W
5. Output Load Impedance:     50Ω
6. RF Output Interface:          N (female)
7. Residual Wave Radiation:     ≥65dBc
8. Audio Input Impedance:      600Ω, Balance, XLR
9. Stereo Separation:           55dB
10. Audio Input Level:          -12dBm~+8dBm
11. Audio Gain:                 ±15dBm, step 0.01dB
12. S/N:                         ≥75dB(30Hz~15KHz,100% Modulation)
13. Audio Harmonic Distortion:  <0.1%
14. Audio response:             ±0.05dB (30Hz~15KHz)
15. Pre-emphasis:               0μS, 50μS, 75μS
16. Deviation:                   ±75kHz (100% Modulation)
17. Pilot Frequency:             19kHz±1Hz
18. Pilot Signal Modulation:      8%~10%
19. Sub-carrier Suppression:    ≥65dB
20. Power Supply:               110VAC~240VAC, 50Hz~60Hz
21. Operation Temperature:     -5°C to +50°C
22. Operation Altitude:          5000m above sea
23. Humidity:                   90%
24. Size:                        2U, 19-inch standard
25. Weight:                     13KG
 

Company show:

Working progress:

Exhibition Show:



 

Common Problems:

In order to be more comprehensive understanding of the knowledge about our products,we collect all the analyses of problems for every order,hope it will help you. 

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. 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.

Q8. 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.

Q9. 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.