Czerf CZE-7C - Common Troubleshooting; Boot and Power Issues; Antenna and Standing Wave Problems; Transmission Distance and Output Power

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 Product Technical Parameter
1
Power Output:
1-2Watt/7-8Watt
10
Antenna Design:
Rubber Antenna(1Watt)
/ GP
2
FM Transmitter
Frequencies:
76-108Mhz
11
Antenna Connector:
TNC type
3
Tuning Step:
100Khz/0.1Mhz
12
Output Impedance:
50 ohm
4
Power Supply:
12V DC (The current load
of power supply should
over 2A)
13
Audio Input
Connector:
3.5mm headphone
connector
5
Stability of Frequency:
±10ppm（-10℃~+50℃）
14
Mic Input
Connector:
3.5mm headphone
connector (Use
6
Frequency Response:
20 - 15000Hz
15
Tuning Design:
Stable PLL Technology
7
Signal to Noise Ratio:
>65dB
16
Size of Transmitter
Unit:
L:129mm, W:96mm,
H:55mm
8
Distortion:
< 0.3%
17
Weight of
Transmitter Unit:
450g
9
Operation Time:
True 24/7
18
Transmission
FM Stereo
 Common Troubleshooting
N
O
Undesirable
phenomena
Reason
1
Can not be
boot
1) outlet for power;
2) The power cord is plugged in;
3) the power adapter is normal.
2
Standing
wave is
greater
1) The antenna is not connected;
2) The antenna does not match;
3)antenna installation location next to the reflector too
3
Transmitter
distance is
close
1) feeder loss;
2) poor launch environment;
3) Output power is not adjusted;
4) antenna installation height is not high enough;
5) The antenna does not match;
6) receiver sensitivity
4
No power
output
1) Output power is not adjusted;
2) Machine standby or power.
5
Audio
muting
1) The master volume is not large;
2) the input audio signal is normal.
6
The
microphone
is silent
1) microphone is normal;
2) the microphone volume is not large;
3) whether the microphone dynamic microphone;
4) microphone is plugged.
7
Sound
quality is
poor
1) microphone quality is not good;
2) Input audio sound quality is not good;
3) antenna installation method is not correct;
4) audio signal or machine volume is not adjusted.