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:          -5℃～+45℃

25. Relative humidity             <95%

26. Power Supply Voltage:        AC90V~AC260V   47Hz~63Hz

27. Size                           2U, 19-inch standard

500mm×484mm×88mm

28. Weight                        13KG