Dedicating Creation Technology CZH-05B User manual

CZH-05B FM transmitter
Instruction Manual
Dedicating Creation Technology Co., Ltd.
Read the instruction carefully before use the product
Keep the instruction for inspection

Notes
1, Don’t run the machine before connect the antenna, or will damage the
machine instantly.
2, the machine can not be used and stored in humid and high temperature
environment, In order to avoid damaging the machine, Advice that seal packing
stored in the dry place after using.
3, Don’t touch the antenna after the FM transmitter is turned on, It may cause
harm to your body.
4, In case of a lightning storm do not use transmitter, unless there is a reliable and
lightning strikes device.
5, The use of the transmitter try to avoid the mobile phone base stations near
launch, avoid electromagnetic interference
6, Don’t use the FM transmitter under the explosive environments (such as
petrol stations, gas, steam, etc.)
Serious Statement
The use of the transmitter please abide by relevant state laws and the relevant
provisions of the radio management committee; Launch FM radio
broadcasting,Don't use the frequency as same as the local radio's frequency and
interference local FM radio broadcasting, or as a legal responsibility undertake by
the client, But not related to the FM transmitter productionenterprise and
distributors.
Thanks for you to choose the product of Dedicating Creation Technology Co.,
Ltd.In order to you better use our product, read it carefully before use this
instruction sheet, and keep. Product packaging kind prevail, if there is a change
shape without prior notice.

CZH-05B instructions
Welcome to choose "Dedicating Creation Technology Co., Ltd." FM
transmitter series. Our company is the specialized production FM radio
transmitter manufacturers, since the miniwatt transmitter to the professional high
power FM radio transmitter species diversity application fields such as wide
characteristics are the favor from the masses of users both china and abroad, CZH
series transmitter for miniwatt FM radio transmitter, already sold overseas tens of
thousands of units.
This machine can be used in: the guesthouse, the hotel, and campus (English
teaching), community, industry, mining enterprise, the team, the wedding,
Fahrschule, FM radio, the FM radio emission is your terminal best choice.
This machine has the following characteristics:
1, 0.1W or 0.5W power can be switched to use;
2, the frequency of 76M ~ 108M range can be set, such as 86M ~ 90M (can be
customized campus frequencies 68-90 MHz);
3, the machine uses high-quality aluminum alloy, five blue backlit LCD display
frequency;
4, The mainboard uses the Japanese ROHM company a new generation of
integrated special nc FM and phase lock loop stereo wireless transmitting chip
BH1415F, built-in PLL frequency and phase lock loop, audio increase, and the
amplitude limit and low pass filter circuit. Frequency stability don't drift and the
sound more sweet;
5, the new microphone input and audio amplifier, the input volume input can be
adjusted
6, The whole machine is good shielding, compact structure, small and
exquisite, elegant appearance

7, Transmission power, smooth, stable work
8, Circuit board, components patch welding assembly line, and long operating
life.
9, Clutter and harmonic control high: ≤-65dB;
10, the signal to noise ratio: ≤ 60dB;
11, Stereo Channels Crosstalk:-40dB;
12, Audio Frequency Response: 80 ~ 15000Hz;
13, Audio distortion: <0.5%;
14, Frequency offset: 75K;
Instructions
Figure 1 describes the front

Figure 2 describes the back
Figure 3 rod antenna

Figure 5 Switching Power Supply
FM transmitter Installation Instructions
Take out of the machine and the antenna (bars or rubber antenna), put the
antenna into the machine at the back of the NO 10 antenna interface ANT, make
the interface tighten.
Take out the power, the power plug into NO 9 power source of the machine
If you want to play music and audio files, please use audio line and computer or
MP3 audio source such as connection, and then insert the launch of the front NO 2
audio input; Or you want to use a microphone broadcasting, please prepare a
common 3.5 interface in the extremely a microphone (computer headset can also
be) into No 6 microphone interface (note: can only use in a microphone (such as
Mike be used in computer), does not support moving coil type microphone (such as
KTV Mike))

FM transmitter operating instructions
After above operation steps,the fan back of the machine will open for a few
seconds, and then host screen will appear OFF ". Then press No 3 power switch
button start machine, the transmitter screen will light up, and then display the
current launch frequency, such as 83.00 MZH, the frequency is the frequency of the
broadcast transmitter foreign launch, if you want to alter the frequency,press
No 4 or No 5 frequency-frequency + buttons to adjustment on the host panel ,
frequency step value: 0.1 MHz..
If you use audio input methods launch radio, first adjust the audio input the
volume of the audio source, such as MP3 audio source for music to broadcast, first
the volume of the MP3 player to adjust to the 80% to 90%, and then in the host to
launch No 2 audio input sound volume button adjust volume, general volume
control at 80% to 90% will get better sound quality, according to your actual
condition debugging.
Or you use a microphone input methods launch FM radio, prepared a
microphone into panel No 6 microphone interface, turn the knob No 7 and the
microphone volume adjustment knob, adjust the output of the microphone volume,
to your satisfaction.
You can use an ordinary FM radio support FM radio to receive and
debugging, if you set the transmit frequency is 83MHZ, you can use the radio's
83 MHZ to receive and debugging.
Transmitter power control instructions
The machine power can be switched between the 0.1W/0.5W. First the
power draw, press and hold the power button on the left side of the front panel
don't let go, again plugged in, 3 seconds after loosen button switches, screen
shows H letters, again through the front panel +-key conversion H or L
H stands for 0.5W, L stands for 0.1W; selected to open and then press the
left key to confirm, and then enter the frequency range of settings, but also
through the +, - button to select the required frequency range, the first set

frequency 108MHZ, then open the key to confirm and enter the low-end
76MHZ, set to open key and then press to confirm, the screen display OFF,
that setup is complete, the normal work.
Notes :76-82Mhz frequency range of power is not flat, the sound quality is
not good at frequencies above 83-108Mhz; Don’t alter the transmitter highest
and lowest 76 MHz 108 MHz , even if you set up to 200 MHz is also not work.
FM transmitter for transmitting distance instructions
FM transmitter range related to a lot of conditions and factors:
First, the FM transmitter antenna be used:
FM transmitter antenna simple divided into "the class" "GP class" "indoor use with
a small class", and to get to the launch of the far distance, shall adopt the "car" and
"GP" antenna, which depends on your purpose and decide, GP antenna looks like a
umbrella of stents, his launch distance is the most ideal; The second is "car"
antenna; And the "rubber" and "bars" such as small antenna is indoor use, empty
areas farthest distance launch only 300 meters.
Second, the FM transmitter power
The launch of the transmitter of power and cover is proportional to the area. Round
area formula: S = π times round the square of r; formula: S = 2 * 3.14 r2; R says
this round radius, can see, radius r into of the original 2 times, the area into the
original 4 times. So, the push to come over, transmitter power increase 4 times,
four times the area covered also increases, so, the launch radius r will turn into the
original 2 times, so, draw the conclusion, launch power increase for the original
four times, distance to launch a doubled. Of course, this is calculated value ideal, in
fact, want to double the size of the launch distance, the transmit power to increase
more than four times, sometimes may be up to 10 times.
Third, the FM transmitter use of the environment
To 5-watt machine, for example, 5-watt FM transmitter using GP antenna and
the antenna mounted on the building's highest point, if there are no obstacles
around the case to launch four kilometers away, but if you use in buildings,
may also only 1 km from the transmitter, another example of your buildings

more intensive, as well as mobile communication base stations and other
electromagnetic interference, it may launch only a few hundred meters of
distance.
Fourth, the choice of tools to receive
You use this machine and use the best "GP antenna" and the use of the
environment, you may use a mobile phone with FM radio function to receive,
they can only be greatly reduced, and with the common market in the hundred
or so radio can receive to 3.5 km of the signal, using a mobile phone is only 2
km. If you listen to with a fever-level tools, such as: handy in 1103, German
students PL-600, Kairon's KK-S500 may also be received from the radio at 6
km. The above analysis is for reference only
Service
The company since buying machine transmitter in the date of 12 months to
provide guarantee service, the guarantee period to buy the product warranty
card date shall prevail. In normal use, to the non-artificial broken or damaged,
buyers can contact the dealer for maintenance.
The following circumstances, does not belong to the scope of free
maintenance;
As the self-disassemble, repair, resulting in failure;
As the failure to use manual operation required due to mechanical failure;
As the fall, collision, caused by human failure;
machine due to lightning and rain event of force majeure caused by the
failure;
machine damp, water, ultra-high temperature, long uninterrupted work
caused by the failure;
For more than warranty period or do not belong to repair the products,
our company also can be you a warm and services
Out of the warranty period, maintenance of life;

Out of warranty period or man-made causes of malfunction factory
maintenance cost
This manual manufacturer reserves the final explanation right
Note: This product in 7 days any quality problems by we should take all round
the postage, more than warranty period occurred to the factory maintenance
and postage should take all by the user..