ProductsFM Transmitter500W-5KW Professional Transmitter

  • Product Name:

    FM Broadcast Demodulator 87MHz~108MHz

  • Categories:500W-5KW Professional Transmitter / FM Transmitter / Products
  • Date:2021-04-22
  • CZH FM Radio Modulator Modulator Overview: CZH368D FM Stereo Broadcast Modulator is an excellent software radio product with excellent performance. The whole modulator adopts new digital signal processing (DSP) and direct digi ...
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1 pcs sample
350 USD
/pcs
55 USD
DHL/UPS 7-10days

2 pcs
300 USD
/pcs
95 USD
DHL/UPS 7-10days

Product Description

CZH FM Radio Modulator

Modulator Overview:

CZH368D FM Stereo Broadcast Modulator is an excellent software radio product with excellent performance. The whole modulator 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.

This modulator is composed of five parts: main control display, audio interface, digital signal processing, remote control telemetry interface and power supply. The modulator is installed in a 19-inch 1U standard case, and all input and output signals are led out from the rear panel.

Features:

● The whole process is digitally processed to achieve a perfect hearing effect close to the sound quality of CD

● New 550MHz digital signal processing (DSP) technology

● 1000MHz direct digital frequency (DDS) synthesis technology

● Highly reliable system-on-chip (SOC) microprocessor technology

● Support AES/EBU standard digital audio input

● Support RDS subcarrier input

● LCD display working parameters in real time

● Standard TCP/IP and RS232/485 serial communication remote control telemetry interface

● 1U 19-inch standard case

● Input power AC 220V/110V can be switched

Technical Specifications:

1. RF frequency range              87MHz ~ 108MHz in 10kHz steps

2. Output level                     -30dBm ~ 10dBm continuously adjustable

3. Output impedance                    50Ω

4. RF output level display                LCD

5. RF output connector                   BNC

6. Residual wave radiation                <-60dB

7. Parasitic amplitude modulation         < -50dB

8. Allowable deviation of carrier frequency ± 200Hz

9. Analog audio input                   -12dBm ~ + 8dBm

10. Audio level gain                     -15dB ~ + 15dB step 0.1dB

11. Analog audio input impedance       600Ω balanced

12. AES / EBU input impedance          110Ω balanced

13. AES / EBU input level                0.2 ~ 10Vpp

14. AES / EBU sampling rate             30kHz ~ 96kHz

15. SCA input                         unbalanced (option) BNC type connector

16. Audio pre-emphasis                   0μs, 50μs, 75μs

17. Frequency response                   ± 0.01dB (30Hz ~ 15000Hz)

18. Left and right channel level difference <0.01dB (100% modulation)

19. Stereo resolution                      ≥70dB (30Hz ~ 15000Hz)

20. Stereo signal-to-noise ratio            ≥90dB (1KHz, 100% modulation)

21. Distortion                              <0.01% (30Hz ~ 15000Hz)

22. Power supply voltage           AC90V ~ AC132V or AC180V ~ AC260V

23. Chassis size                    19 inches, 1U (484mm × 305mm × 44mm)

24. Machine weight                        4kg

25. Operating ambient temperature       -5 ℃ ~ + 50 ℃

26. Relative humidity                      <95%

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