Problem
Solution
No power
1.The adapter is damaged
2.The plug is loose and reinserted or replaced
Large 1.Make sure the audio signal cable is connected well
transmission 2.Adjust transmitter antenna length
noise 3.Are there strong interference around the transmitter antenna
1.Adjust Transmitter antenna length
Short Range 2.The transmitter antenna is too close to the metal object
3.Make sure the frequency of the transmitter is consistent with
the center frequency of the antenna
Transmitter 1. Adjust the antenna length
alarm 2.Make sure the antenna length is consistent with the
transmitter frequency band
Troubleshooting
Specifications
1) Working voltage: DC 12V ± 10%
2) Frequency range: 87 ～ 108MHz (3MHz work selected by the user)
3) Frequency step: 100KHz
4) Frequency deviation: ≤1KHz
5) Coverage radius: 2 KM
6) Modulation frequency offset: ± 75KHz (at 100% modulation)
7) Pre-emphasis: 75μS
8) Audio distortion: ≤1%
9) SNR: ≥55dB
10) Harmonic / clutter radiation: <60dB
11) Frequency response: ≤ ± 1.5dB (100Hz ～ 10KHz)
12) Audio input level: 0dBm / 600Ω (unbalanced)
13) RDS coding method: DPSK
14) RDS subcarrier frequency: 57KHz ± 6Hz
15) RDS frequency deviation: ± 2.4KHz
16) Audio output amplitude: 2000mVpp
17) Audio formats: MP3, WAV, APE, WMA
18) Working temperature: -25 ℃ ～ + 45 ℃
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