Kit model: RF-03PLL Kit use: private radio, car audio transmitter, cable audio to wireless Operating voltage: DC4-6V Operating current: 20mA-40mA Launch distance: 20-80 meters barrier (affected by production level) Transmit frequency: 87-108MHz, 14 frequency, through the DIP switch to change the frequency Power indication: Yes, less than 4V Auto light off Antenna: 300mm soft wire, you can also modify to launch farther distance Oscillation mode: PLL phase-locked loop Frequency stability: zero drift Sound quality: excellent, stereo two-channel transmission, automatic gain control Microphone: Yes, PCB onboard Microphone distance: 1 meter normal speech Microphone and audio input conversion mode: pull out the audio line microphone automatically work PCB size: 74mm * 52mm
Package includes:
1 x DIY FM Stereo Transmitter Module Kit
Low frequency
D0
D1
D2
D3
Frequency
L
L
L
L
87.7MHz
H
L
L
L
87.9MHz
L
H
L
L
88.1MHz
H
H
L
L
88.3MHz
L
L
H
L
88.5MHz
H
L
H
L
88.7MHz
L
H
H
L
88.9MHz
High frequency
L
L
L
H
106.7MHz
S3 dial to H108M
H
L
L
H
106.9MHz
L
H
L
H
107.1MHz
H
H
L
H
107.3MHz
L
L
H
H
107.5MHz
H
L
H
H
107.7MHz
L
H
H
H
107.9MHz
Soldered PCB, for reference only!
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