CZH368 25W Digital FM Modulator 87MHz-108MHz radio station equipment

Specifications

 rf modulator

Applications

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CZH368 25W AES-EBU Digital FM transmitter Modulator

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rf modulator

Description:

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CZH368  digital  FM modulator  is  an  excellent  digital  product  that  owns  the highest  and  newest  technology. The whole machine  adopts  the  latest  digital  signal processing and  the direct digital synthesized  technology; This advantage provides us with excellent hearing feature which can match to CD audio quality.

>Has analog, AES/EBU audio interface and SCA interface;

>A full band FM modulator from 87.00~108.00MHz step 10kHz;

>A remote control  interface  that  can  be  easily  controlled  by  a PC  or  any  other  device  through
RS232 port;

> Wide range RF power adjustment from -8dBm to 12dBm; RF power can also be shut down without turning off power supply.

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-    Adopting new digital signal process(DSP) technology.
-    Direct digital synthesis frequency(DDS) technology.
-    Advanced MCU control system.
-    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.
-    Free customization within the RF output frequency range.
-    122*32 lattice blue screen LCD synchronously displays the work parameters of the modulator.
-    RS-232/485 serial communication remote control and telemetering.
-    1U,19-inch standard chassis structure.

Technical Specifications

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Power voltage: AC220v  ±10% 50Hz

Power consumption: <25W

RF frequency range: 87.00MHz-- 108.00MHz,step10kHz

Output power: -8dBm--- 12dBm

Output impedance:50Ω

RF output connector:BNC(female)

Carrier frequency precision: ±200Hz

Harmonic suppression: ≥ 65dB

Parasitic amplitude modulation: ≤-50dB

Modulation frequency deviation: ±75kHz(100%modulation)

Audio pre-emphasis: 0μs50μs75μs

Level difference of right and left: <0.1dB(100%modulation)

Signal-to-Noise: 70dB(type),1kHz,100%modulation

Audio response: ±0.1dB,10Hz--15000Hz

Distortion: <0.1%,10Hz--15000Hz

Stereo seperation: 60dB(type),30Hz--15000Hz

Pilot frequency: 19kHz±1Hz

Pilot frequency modulation: 8%--10%

Analog audio input impedance: 600 Ω, balance

Analog audio input level: 12dBm-- 8dBm,step1dBm

Digital audio input impedance: 110 Ω, balance

Digital audio input level: 0.2--10Vpp

Digital audio sample rate: 30kHz--96kHz

Weight: 3.8KG

Size: 485mmx305mmx44mm   

rf modulator

Front and Back panel description

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 1.Front panel

1.LCD indicator

2.LCD Dsiplay

3.Push botton (UP, DOWN, ESC, ENTER)

4.Power switch

2.Back panel

1 Power Socket

2 Ground

3 RF OUT

4 RF ATT

5 COM

6 L IN
7 R IN
8 AES IN

9 SCA IN

rf modulator

About Us

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FMUSER is a high tech cooperation dedicated in providing solution project designing, technology exploring, manufacturing and marketing of fm transmitters. FMUSER has been in cooperation with plenty of countries overseas manufacturing fm transmitters as per customers' needs, the business map reached to countries and regions like United States, United Kingdom, Japan and lots of countries from European and Southeast Asia. FMUSER is currently one of the biggest manufacturer of fm transmitters in china.

Permit licenses

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In Canada:There is a permit or license required on your particular application using transmitters, so please contact your nearest office Industry Canada to obtain related information.

In the U.S.A: There is a permit or license required on your particular application using transmitters, so please contact your nearest FCC office to obtain related information.

rf modulator