• FM-D5W2 500mW 2KM 76-108MHz Stereo FM Transmitter (Transmitter Only) Designed with Digital Display
  • FM-D5W2 500mW 2KM 76-108MHz Stereo FM Transmitter (Transmitter Only) Designed with Digital Display
  • FM-D5W2 500mW 2KM 76-108MHz Stereo FM Transmitter (Transmitter Only) Designed with Digital Display

FM-D5W2 500mW 2KM 76-108MHz Stereo FM Transmitter (Transmitter Only) Designed with Digital Display

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FM-D5W2 500mW 2KM 76-108MHz Stereo FM Transmitter (Transmitter Only) Designed with Digital Display

Attention:

1. This is a transmitter, not a radio.
2. Microphone cannot be directly inserted into the transmitter.
3. There is no battery inside the transmitter. Thus, it needs to be powered by an external power supply.
4. This is a transmitter and cannot be used to enhance the radio signal. Please buy an outdoor antenna or an antenna amplifier if you want to boost signals.
5. The transmitter needs to be connected to an antenna to transmit out. Be sure to connect an antenna before using the transmitter.
6. Transmitter sockets, buttons and other places that need to be repeatedly used are manually welded again to prevent excessive force from breaking off these accessories.

Specifications:
- Item name: FM transmitter
- Model: RC-FMD5W2
- Version: V100
- Output frequency: The frequency is adjustable. The working range is 76~108MHz, 1MHz or 0.1MHz steps, a total of 320 transmit frequencies, with memory function
- Output power: 10~500mW(0.01~0.5W) at 88-108MHz
- Receiving equipment: Ordinary radios. A radio that can receive an FM radio will be able to receive the signal emitted by the transmitter well
- Display mode: LCD display. Current transmit frequency is displayed
- Coverage distance: In the actual measurement, this transmitter uses a full-size GP antenna in the open field, and the coverage distance reaches 2KM
- Power supply voltage: 5V USB-type-C (power supply and USB type-c power cable need to be prepared by users)
- Supply current: 500mA
- Input signal: audio stereo and 3.5mm interface
- Output specification: high-frequency power 500mW (maximum) and 50 ohms
- Signal-to-noise ratio: 63dB 0.05% THD
- Weight: 120g/0.3lb
- Dimensions: 8.5cm x 5cm x 2cm/3.3" x 2" x 0.8" (excluding protrusions)

Package Included:
- 1 x FM Transmitter

Packaging Details:
- G.W.: 0.5kg

Note:
- Battery is not included in the package.


Q&A:

Q: What is it?
A: This is an FM transmitter. You can think of it as a small FM radio station. Input audio signal and FM high-frequency signal are transmitted into the air through an antenna. People who are far away around can receive signals using a radio.

Q: Is it a stereo transmitter?
A: Yes.

Q: Is there a battery inside the transmitter?
A: No, there is no battery inside the transmitter. An external power supply is required to power it.

Q: How do I supply power to the transmitter?
A: The transmitter is powered by 5V DC. The power supply port is USB Type C. The current consumption is about 200mA. If you use a poor quality power supply, the transmitter may not work properly or the transmission quality will deteriorate, and the radio side will receive noticeable noise. The supply voltage is required to be 4.8-5.5V, and exceeding this range will cause the transmitter to work abnormally or even damage the transmitter.

Q: Can I use a microphone with the transmitter?
A: No. Microphone cannot be plugged directly into the transmitter. If a microphone amplifier is used, the amplified microphone signal can be fed into the transmitter.

Q: Can I connect a dummy load instead of an antenna to the antenna port of the transmitter?
A: No, because the dummy load is a pure resistor. It absorbs the signal from the transmitter, which causes the transmitter to have no energy to send into the air. By connecting a dummy load to this transmitter and relying only on the leakage of weak power, your radio can receive the signal from this transmitter within a meter or two meters. The dummy load and the antenna are two devices with opposite functions and cannot be used instead.

Q: How do I set the transmitting frequency?
A: You can adjust the transmitting frequency by pressing two buttons on the panel. You can choose the step value to change the frequency in 1MHz or 0.1MHz steps. Stop pressing the button for 5 seconds, and the transmitter will automatically remember the current set frequency. The next time you turn it on, it will automatically transmit at this frequency, and you don't need to set the frequency again.

Q: How to adjust the transmitting power?
A: Long press the Up button to enter the power setting mode. Set the transmitting power by pressing the Up/Down button. The transmitting power can be set in the range of 10mW~500mW, and there are 11 power levels. It will automatically switch to the frequency adjustment mode and save the current transmitting power in 3 seconds after pressing the button. The next time it is powered on, it will automatically remember the previous transmitting power and frequency.

Q: Can it reach a transmitting distance of 2KM?
A: The transmission distance is for reference only, because the transmission distance is directly related to the transmitting power, propagation conditions and antenna performance. The 2KM transmitting distance is achieved with 500mW transmitting power, a full-size GP antenna is erected on the 14th floor, and there is no obstruction between transmission and reception. The antenna is adjusted by an antenna analyzer and has a standing wave of 1.2 on the transmitting frequency. In an open and unobstructed environment, the transmission distance of our telescopic antenna (optional) is 100~200 meters. Please note that the presence of floors and multiple walls will severely reduce the transmission distance.

Q: Can I connect a telescopic antenna directly to the transmitter?
A: Yes, but you should pay attention to and judge a phenomenon: if you can hear the sound of beeping or buzzing from the radio after using a telescopic antenna, it means that the transmitter is jammed. At this time, this phenomenon can be mitigated or avoided by reducing the transmitting power. If this interference is always present, the transmitting antenna can only be kept away from the transmitter and the front-end audio source. The antenna is a radiator, and when the transmitting power is large, it will cause interference to the surrounding electrical equipment. So once you find that your preamp can't work under a strong signal, then you can only keep the antenna away from the transmitter and preamp through the feeder, which can effectively avoid interference.

Q: Why does my radio receive a signal ±0.1MHz near the receiving frequency?
A: This is due to the fact that the signal received by the radio is too strong. At this time, there is no such phenomenon when the radio is moved away from the transmitter.

Q: Why is my radio jamming and the sensitivity of my radio dropping when I am listening to radio stations of other frequencies and the transmitter is working?
A: Because when there is a super strong transmitting signal in the vicinity of the receiving frequency, the radio will be suppressed. At this time, it is necessary to reduce the transmitting power or keep the radio away from the transmitter to reduce the degree of suppression by the strong station. High-end radios have a large number of filters on the front end to enhance this resistance to suppression.

Q: What is the transmitter audio input interface?
A: The input uses a standard 3.5mm audio jack. The input volume should be appropriate, and the volume should be reduced, so that the final effect reaches the quality of the general FM station. Note: This transmitter does not support microphone input.

Q: What is the transmitter antenna interface?
A: The transmitter adopts SMA female antenna interface. On the antenna side, a connector with an internal thread and an internal needle is required.

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