Czerf CZE-7C User Manual

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CZE-7C INSTRUCTIONS
Precautions for Use
●Ensure that the power supply voltage is within the extent permitted
●
Maintenance
can only be professional and technical personnel to operate
●Do not touch the antenna after the transmitter is powered
●Do not boot the machine before the antenna is connected
●Do not use in an explosive environment (such as gas stations, gas, steam, etc.)
●Do not place the transmitter in extremely dusty, humid, high temperature to use
●Please be sure to use complying with local radio regulatory agencies require
Product Features
1. High-fidelity high stability: Motherboard is adopted by next-generation integrated NC FM stereo
radio transmitter chip the BH1415 from Japan ROHM Company, built-in PLL frequency PLL,
audio pre-emphasis, limiter and low pass filter circuit to achieve high fidelity, high stability signal
transmission
2. Stereo clear sound: the control panel is consisted of AT89C2051 and AT24C02; after the stage by
two 2SC3355 and one 2SC2053 total of three power amplifier to ensure that the
three-dimensional sound quality output effect
3. Good shielding: Structure design closely, not because of external signal induction frequency drift
4. Excellent heat dissipation: The stability of the chassis using high quality aluminum alloy material,
lightweight and excellent heat dissipation can work continuously to ensure that equipment
5. Easy to use: Panel use LCD to display the transmission frequency, according to the identification
of the interface to connect to other hardware, easy to adjust and it is intuitive
6. Switching power: 1W and 7W power can be switched to use
7. Switching frequency: Can arbitrarily set from 76M to 110M range from 86M to 90M 95M to
108M, 87M to 108M
8. This subsection is with a microphone and volume control
Product Configuration
NO.
Product name
specification
quantity
unit
1
Host machine
CZE-7C
1
piece
2
antenna
1
set
3
Power adapter
DC 12V/2A
1
set
4
Audio cable
3.5mm audio cable
1
piece
5
manual
e-instruction manual
1
copy

Czerf CZE-7C Specifications

General

Frequency Step Value	100Khz
Harmonic Radiation	≤-60db
Modulation Mode	FM
RF Power Output	7 W
Frequency Response	50 Hz-15 kHz (±2 dB)
Microphone Input	5 mV
Power Supply	DC 12V
Operating Temperature	-10°C to +50°C

Summary

Precautions for Use

Operating Instructions

Front Panel and Rear Panel Overview

Provides a visual guide to the device's front and rear panel controls and interfaces.

Audio and Microphone Control

Details on adjusting the audio input volume and microphone sensitivity for optimal sound.

Frequency and Power Adjustment

Instructions for tuning the transmitter frequency and switching between output power levels.

Power and Frequency Range Configuration

Step-by-step guide for setting the transmitter's output power and operating frequency range.

Common Troubleshooting

Boot and Power Issues

Addresses problems related to the device not booting or losing power.

Antenna and Standing Wave Problems

Solutions for issues concerning antenna connection, matching, and standing wave ratios.

Transmission Distance and Output Power

Troubleshooting for short transmission range and incorrect output power settings.

Audio and Microphone Malfunctions

Guidance for resolving issues with audio muting, microphone silence, and sound quality.