FMUser FU-T501 User manual

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FU-T501 USER MANUAL
1. Attention before use:
1) Make sure the supplied voltage is within the acceptable range.
2) Only professionals can do the maintenance.
3) Please make sure the antenna has lightening protection.
4) Please don’t touch the antenna when the machine is connected with power supply.
5) Please don’t power on the machine without connecting antenna.
6) Please don't use the transmitter in explosive environment(e.g. gas station, places with gas or steam)
7) Please don’t use the transmitter in extreme dusty, damp, hot environment.
8) Please use the transmitter under the regulations by local wireless administration institutions.
2. Menu
1) Product features
2) Product configuration
3) Product user guide
4) Product specification
5) Troubleshoot
3. Product Features
FU-T501 is a multi-functional FM transmitter. It has stable structure, excellent performance , super good sound
quality and is very easy to use.
*Main Features:
-Stereo/Mono optional
- RF output power is continuously adjustable from 0~50watt.
-One button controls all functions.
-Auto volume control function. It can detect and adjust volume automatically and ensure the
best modulation.
-SWR protection. When antenna is not well connected, the transmitter will turn to
protection mode automatically.
-Temperature protection. When the temperature of transmitter is too high, it will turn to
protection mode automatically.
-External encoder input interface (available for SCA or RDS encoder )

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4. Product configuration
NO
NAME
DESCRIPTION
QTY
UNIT
PORT
1
FM transmitter
FU-T501
1
PCS
NO
2
ALLUMINUM ANTENNA
1/4 OR 1/2 WAVE
1
SET
RF OUT
3
AC POWER CORD
THREE PHASE DC
1
PCS
AC INPUT
4
AUDIO CABLE
1 TO 2 - 3.5mm TO RCA
1
PCS
LINE IN
5
USER MANUAL
ELECTRONIC VERSION
1
PCS
NO
5. User Guide
1) Front and Back Panel description
Front Panel
Back Panel
2) Knob description
Action
Definition
Description
Turn left/right
Adjust,shift
Main page, adjusting page, shift（turn clockwise
to increase, turn Counterclockwise to reduce）
Short press
Confirm
Enter/Exit Menu page

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3) Operation Instruction
a). Turn ON
Check the antenna first, make sure it’s well
connected. Then connect the power cord
to home socket, press the power button to
I position to turn ON the transmitter. O
position means OFF. See picture on the
right.
After power on, the transmitter goes into working status. The screen will show working status which has
2 pages, turn the knob to shift between the two pages. See picture below:
Display Page 1:
Display page 2:
Page 1 description:
Real-time working frequency:
Real-time internal working temperature：
RF output power:
Reflecting power：
SWR：
Page 2 description:
Sound Mode： ， ST means Stereo，MO means Mono.
Line-in Volume： ，Volume is 0~13，AUTO means automatic control.
Press and hold
Confirm
On Main page, press and hold to enter Menu

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Microphone Volume： ，Volume range is 0~79。
Volume indicator：,
it shows real time display of the volume.
b). Function and Parameter setting
Press the knob to enter Menu page. Turn the knob to shift pages. There are 8 pages altogether.
Frequency setting
On the Menu page, turn the knob to page 1 FERQ setting, press the knob to enter setting.
Turn the knob to adjust the frequency by stepping of 0.1MHz, then press the knob to confirm
setting and exit.
Line-in Volume setting
On the Menu page, turn the knob to page 2 LINE VOLUME setting, press the knob to
enter setting. Turn the knob to adjust the volume within the range of 0~79, then press the
knob to confirm setting and exit.

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RF output power setting
On the Menu page, turn the knob to page 3 RF POWER setting, press the knob to enter
setting. Turn the knob to adjust the output power within the range of 0~50w, then press the
knob to confirm setting and exit.
Sound mode setting
On the Menu page, turn the knob to page 4 ST<OR>MO setting, press the knob to enter
setting. Turn the knob to shift the sound mode between Stereo and Mono, then press the
knob to confirm setting and exit.
Temperature Protection Setting
On the Menu page, turn the knob to page 5 TEMP setting, press the knob to enter setting.
Turn the knob to adjust the protection temperature point within the range of 50~70℃, then
press the knob to confirm setting and exit.
SWR protection setting
On the Menu page, turn the knob to page 6 SWR SET setting, press the knob to enter
setting. Turn the knob to adjust the SWR protection point within the range of 2.0~3.5, then
press the knob to confirm setting and exit.

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MIC volume setting
On the Menu page, turn the knob to page 7 MIC VOLUME setting, press the knob to enter
setting. Turn the knob to adjust the microphone volume within the range of 0~79, then press
the knob to confirm setting and exit.
Exit setting
On the Menu page, turn the knob to page 8 MENU EXIT, press the knob to exit setting
and return to main page.
6. Technical Specification
NO
Item
Specification
1
Working Voltage
AC110V/50Hz/60Hz（choose Manually）
AC220V/50Hz/60Hz（choose Manually）
2
Working Current
﹤1A
3
Frequency Range
87~108MHz
4
Frequency Stability
±10PPM
5
Frequency Stepping
100KHz
6
Environment temperature
-10℃~45℃
7
Output Impedance
50Ω
8
RF output power
0W~50W
9
Harmonic, clutter radiation
≤－60dB
10
Audio distortion
0.2%
11
Frequency Response
50Hz~15000Hz
12
Separation
≥35 dB
13
Input level
≤15 dBV

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14
Frequency Modulation
±75KHZ
15
SNR
≥70dB
16
Size
21cm（L）*48 cm（W）*4.5 cm（H）
17
Net Weight
About 2800g
7. Troubleshooting
NO
Problem description
Possible Reasons
1
Unable to Power ON
1）Socket is not connected with electricity
2）Power cord is not well plugged.
3）The fuse is not working properly in socket.
2
SWR Alarm
1）Antenna is not well connected.
2）SWR value is too high because antenna doesn’t
match transmitter
3) There are too many reflecting objects close to
antenna.
3
Temperature Alarm
1）Fan is not working；
2）Antenna doesn't match transmitter, the SWR
value is too high, thus temperature rises up.
3）The fan holes are jammed.
4
SWR value is too high
1）Antenna not well connected.
2）SWR value is too high because antenna doesn’t
match transmitter
3) There are too many reflecting objects close to
antenna.
5
Short transmitting
distance
1）High loss of feeder cable.
2）Poor broadcasting environment.
3）Output power is low.
4）Antenna is not placed high enough.
5）Antenna and transmitter doesn’t match.
6）Radio receiver has low sensitivity.
6
No power output
1) RF output power needs to be adjust higher
2) Transmitter is powered OFF.
7
No audio output
1）Transmitter line-in volume is too low.
2）Line-in audio signal is abnormal.

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8
No microphone output
1）Microphone is not working well.
2）Microphone volume is too low.
3）Microphone is dynamic type.
4）Microphone is not well plugged.
9
Poor sound quality
1）Microphone quality is low.
2）Audio source quality is low.
3）Antenna is not well assembled and connected.
4）Audio signal or transmitter line-in volume is
not adjusted well.