Retekess TR502 - FM Transmitter Manual

Overview

1. Audio Volume Adjustment
2. Audio Socket
3. On/Off Setting Button
4. Down Button
5. Up Button
6. Microphone socket
7. Microphone Volume Adjustment

1. U Disk Outlet
2. PC Control
3. Power Socket
4. Cooling Fan
5. TNC Antenna Female seat

Precautions For Use

• There is high pressure inside the machine, maintenance can only be operated by professional and technical person.
• Please put the machine in a cool dry and ventilated environment for use, the ambient temperature should not be higher than 35 degree centigrades.
• After antenna installed, there should be 5 meters above from the ground and wall spacing as standard installation environment.
• When install the feed tube, be sure to tie the feed tube to the mounting rod with a tie to prevent the feed tube from pulling loose on the connector.
• Please do not turn on the machine without connecting the antenna.
• Please do not touch the antenna after machine is power on.
• Please do not use this machine in explosive antospheres(eg gas stations, gas, steam, etc.).
• Please comply with local radio regulations.

Function and Parameter setting

1. Power On/Off
   When the machine is connected to power, then it starts. In working condition, long press key, the machine enters standby mode. In standby mode, long press key, the machine goes into working condition.
2. Frequency Adjustment
   In working condition, short press , when the icon in the lower right corner flashes, press or to adjust the frequency. Short press or , frequency steps by 100K;
   Long press or button, frequency continuously steps by 100K.

3. Power Adjustment
   Short press button, when the icon on the screen is flashing, press or to adjust the power; Short press or button Decrement; icon is displayed as reflected power.
   PS: The 15-watt power shows 1.9 watts per cell, with a minimum of 0 cells and a maximum of 8 cells.

4. Soundtrack Adjustment
   In the working state, short press , when the icon of screen power icon is flashing, press or to adjust the channel mode; is mono; When the stereo channel.

5. Amplifier Temperature
   In working condition, short press button, when the icon is displayed, it is the current temperature of the amplifier module.

6. Audio / Microphone Volume Adjustment
   Turn the audio knob / microphone knob clockwise to increase the volume; turn counterclockwise to decrease the volume.

Bluetooth Connection / U Disk Play

When the host is turned on, the screen displays icon, device open Bluetooth to search NIORFNIO to connect.
When the host is turned on, insert U disk, the screen displays icon; press or buttonto switch songs;
Long press the button to switch the sound mode (NO normal, POP pop, JAZ Jazz, CLA classical, BAS bass).
Long press the button to switch play mode (ALL ALL, FOL in sequence, ONE ONE, RAN)
Input priority:
Audio cable > U disk play > Bluetooth play

Alarm Reminder Function

When the machine is working, it sends alarm and the alarm iconflashes in the lower left corner of the screen. General troubleshooting:

Standing Wave Alarm

1. The antenna is not connected
2. Feeders rolled together, did not start;
3. Antenna installation from the ground, wall or metal objects too close, adjust the antenna installation location;
4. Antenna oscillator height and frequency do not match, adjust the height of the antenna to the launch point.

Temperature alarm

1. Fan does not turn
2. The antenna does not match, which causes standing wave too large and temperature rises. Adjust the antenna oscillator height corresponding to the launch frequency or adjust the antenna position;
3. Into the outlet there are obstacles, blocked the flow of air temperature is too high;
4. engine room air convection, or the engine room temperature is too high.

Technical Parameter

Lever antenna frequency length corresponding table