Vehicle-mounted intercom having dual-band duplex cross-band transfer function
A vehicle-mounted walkie-talkie and cross-segment technology, which is applied in the direction of electrical components, transmission systems, two-way line system stations, etc., can solve the problems of resource duplication, expensive transfer costs, receiver audio signal transfer, etc., to achieve extension and communication distance Effect
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[0024] Such as Figure 1 to Figure 3 As shown, the vehicle-mounted walkie-talkie with dual-segment duplex inter-segment transfer function is mainly composed of receiving unit 1, receiving unit 2 11, transmitting unit 4, transmitting unit 2 7, mixing unit 1 3, and mixing unit 2 8 , an audio signal switching unit 10, an antenna unit 5, a receiver unit 2, a receiver unit 2 9 and a microphone 6.
[0025] The receiving unit one 1 and the transmitting unit one 4 are frequencies of the same frequency band, and the receiving unit two 11 and the transmitting unit two 7 are frequencies of the same frequency band; and the receiving unit one 1 and the transmitting unit two 7 have different frequency bands, and the receiving unit two 11 and The transmitting unit has 4 different frequency bands.
[0026] Wherein the above-mentioned receiving unit one 1 is electrically connected with the audio signal switching unit 10 through a wire, the audio signal switching unit 10 is electrically connec...
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