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Quick Details

  • Brand Name: CZERF
  • Model Number: CZE-15B(139)
  • Type: Mini Amplifier
  • Channels: 2 (2.0)
  • Place of Origin: Guangdong, China (Mainland)
  • material: aluminium
  • software: pc control
  • Frequency Range: 87-108MHz
  • MOQ: 1pcs

Packaging & Delivery

Packaging Details plastic bag and foam bag inside,paper box outside
Delivery Time 7-15 days

CZE-15B PC control 15W fm transmitter for radio station power radio High Quality Radio audio amplifier 

 Technical Parameter:

Output Power:0W~ 15W(continuously adjustable)
Operating voltage 12V ~ 16V (rated voltage 15V)
Current <3A
Frequency:87 ~ 108MHZ
Frequency stability ±10PPM
Frequency step 100KHZ
Operating temperature range -10°c ~ 45°c
Antenna impedance 50Ω
Harmonics, spurious radiation ≤-60dB
Audio Distortion 0.1%
Frequency Response 50HZ ~ 15000HZ
Separation ≥ 35 dB
Input level -15 dBV (adjustable)
Frequency deviation ±75KHZ
SNR≥60 dB
Size: 173 mm (L) * 110 mm (W) * 48 mm (H)
Weight: 0.7KG

Product Feature:

* Output power continuously adjustable from 0W~15W    

* Constant power, the whole band has 3~ 5W margin    

* Output power automatic locking    

* Microphone with reverb and can be turned on or off    

* Channel is Optional:Single / Dual    

* PC control port, computer manipulation through software, more advanced.    

* Audio digital-analog conversion, easier digital input    

* VSWR protection:If the antenna is not connected correctly,there willl be automatic acces for protection    

* Temperature protection, automatic protection when the transmitter temperature is too high     * Fan with temperature control switch, automatic ON/OFF    

* Host panel with a number of shortcut keys, intuitive display, simple operation, fast    

* The equipment with reasonable design, material quality is very high, rugged

 Product Display:

 Package Includes:

1*15W CZE-15B FM Transmitter

How far(long) the transmitter cover?

The transmission range depends on many factors. The true distance is based on the antenna installing height , antenna gain, using environment like building and other obstructions , sensitivity of the receiver, antenna of the receiver . Installing antenna more high and using in the countryside , the distance will much more far.

EXAMPLE 5W FM Transmitter use in the city and hometown:

I have a USA customer use 5W fm transmitter with GP antenna in his hometown ,and he test it with a car, it cover 10km(6.21mile).

I test the 5W fm transmitter with GP antenna in my hometown ,it cover about 2km(1.24mile).

I test the 5W fm transmitter with GP antenna in Guangzhou city ,it cover about only 300meter(984ft).

Below are the approximate range of different power FM Transmitters. ( The range is diameter )

0.1W ~ 5W FM Transmitter :100M ~1KM

5W ~15W FM Ttransmitter : 1KM ~ 3KM

15W ~ 80W FM Transmitter : 3KM ~10KM

80W ~500W FM Transmitter : 10KM ~30KM

500W ~1000W FM Transmitter : 30KM ~ 50KM

 Product Application:

 radio station power radio 


1Can't switch on transmitter

1)If the socket is electricity connected;

2)If the power supply has been correctly connected.

3)If the power supply is matching the transmitter.

2 SWR Alarming

1)Antenna not correctly connected;

2)Antenna is not matching the transmitter,  this causes the SWR value too big.

3) Too many reflections around the antenna

3  Temperature Alarming

1)The fan is not working;

2)The antenna is not matching the transmitter, SWR value gets too big and caused over-heat.

3)The ventilating holes are obstructed and air flow is slow.

4  SWR value is very big

1)Antenna is wrongly connected;

2)Antenna is not matching transmitter.

3)Too many reflecting objects around the antenna

5  Broadcasting range is too short

1)Antenna cable loss is too much;

2)Broadcasting environment is weak;

3)Output power is not big enough;

4)Antenna is not placed high enough.

5)Antenna is not matching transmitter;

6)The receiver has very low sensibility.

6  No power output

1)The power output is not adjusted big enough;

2)Transmitter is in standby status.

7  Audio input no sound

1)The transmitter is in audio mute status;

2)Audio input signal in not normal.

8  Microphone no sound

1)Microphone is not working;

2)Microphone is in mute status;

3)If it's Pole microphone.

9  Audio effect is weak

1)Microphone is low quality;

2)Audio input effect is not good.

3)Antenna is wrongly connected;

4)Audio signal or the machine volume is not well adjusted.

 All products will be burnt-in for 48 hours and double tested before leaves our factory:

radio station low power 

All overseas orders will be carefully packed before sending and shipping:


Company Information



Q1:What is FM transmitter?

An FM transmitter is a device that can convert audio contents from any audio source such as MP3,Cellphone,Computer etc. to signals that transmits out in FM band, the signals can be picked up by any radio receivers that uses the same frequency at the other end. 


Q2:How does FM transmitter work?

Firstly connect the audio source to FM transmitter, the audio signals will be converted to FM signals and broadcast out through the antenna via tuned frequency, people at the other end use a radio receiver to hear the audio by tuning to the same frequency.


Q3:How many frequencies can I use in one transmitter?

Most of our transmitter are in normal FM frequency band(87~108mhz), you can change to any frequency within this band. Use one frequency at one time.


Q4:Can I change power output on the transmitter?

Most of our transmitter offers power output adjusting function.


Q5: Which address should I return to?

Name: Cindy Gao

Phone:+86 18025316852

Address: 2/F (Building C-1), No. 3, Chuangye 2nd Road, Guandao Village, Shapu, Xintang Town, Zengcheng

ZengChen District., GuangZhou, China, 511338

Skype:+86 18025316852

WhatsApp:+86 18025316852



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