| Customization: | Available |
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| Type: | Transmitter |
| Function: | Signal Transmitting Device, Signal Transmission Equipment |
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ZHC618F-5W~300W FM Stereo Transmitter(Exciter)
ZHC618F series FM stereo broadcast transmitter (exciter) is an excellent software radio product with excellent performance specifications. The whole machine adopts new digital signal processing (DSP) and direct digital frequency synthesis (DDS) technology. With the advantages of digital processing technology, it provides users with a perfect listening experience close to CD sound quality.
ZHC618F series FM stereo broadcast transmitter (exciter) consists of six parts: main control display, audio interface, digital signal processing, power amplification, remote telemetry interface and power supply. The machine is installed in a 19-inch 2U standard case, and all input and output signals are led out from the rear panel.
Product models are: ZHC618F-5W, ZHC618F-10W, ZHC618F-30W, ZHC618F-50W, ZHC618F-100W, ZHC618F-200W, ZHC618F-300W
Features
The whole process is digitally processed to achieve a perfect hearing effect close to the sound quality of CD
Uses new 550MHz digital signal processing (DSP) technology
1000MHz direct digital frequency (DDS) synthesis technology
Using highly reliable system-on-chip (SOC) microprocessor technology
Support AES / EBU standard digital audio input
Support SCA or RDS subcarrier input
Electronically controlled AGC controls output power with zero drift
Complete alarm and protection functions for over current, over voltage, over temperature, over power, and excessive standing wave ratio
Large screen LCD displays working parameters in real time
With TCP / IP, CAN and RS232 communication interfaces and SMS cat interface
High quality stainless steel, dust filter, 2U, 19 inch standard case
ZHC618F-5W~300W FM Transmitter Diagram
Technical Specifications:
1. Frequency Range: 87.0MHz~108.0MHz
Setting step 10KHz
2. Output Power 0~5W/10W/30W/50W/100W/200W/300W
3. Output power deviation <± 10%
4. Output power stability <± 3%
5. Output Load Impedance 50Ω
6. RF Output Interface N-50K
7. Residual wave radiation <-70dB
8. Parasitic amplitude modulation <-50dB
9. Carrier Frequency Precision ±200Hz
10. Analog Audio Input -12dBm~+8dBm
11. Audio Input Level Gain -15dB~+15dB, step 0.1dB
12. Audio Input Impedance 600Ω, Balance, XLR
13. AES / EBU input impedance 110Ω, Balance, XLR
14. AES / EBU input level 0.2 ~ 10Vpp
15. AES / EBU sample rate 30kHz ~ 96kHz
16. SCA Input Unbalance (optional) BNC connector
17. Pre-emphasis 0μS, 50μS, 75μS (optional)
18. Audio Response ±0.1dB
19. LR channel level difference <0.1dB (100% modulation)
20. Stereo Separation ≥50dB (30Hz ~ 15000Hz)
21. Stereo S/N ratio ≥70dB (1KHz, 100% modulation)
22. Distortion <0.1% (30Hz~15000Hz)
23. Cooling mode Forced Convection
24. Temperature Range: -5ºC~+45ºC
25. Relative humidity <95%
26. Power Supply Voltage: AC90V~AC260V 47Hz~63Hz
27. Size 2U, 19-inch standard
500mm×484mm×88mm
28. Weight 13KG
Company Show:
Common Problems:
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.
Mike Cai
International Sales Director
ZHC(CHINA) Digital Equipment Co., LTD
Add: Building 5th, No.23, Jugong Rd. Binjiang District, Hangzhou, China
Tel: +86 571 8238 1886
Mobile: +86 135 8821 5572
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