(YINITONE) RC-108 TK intercom relay box K port Item Type: Walkie‑Talkie Two Way Relay Box Material: ABS Colour: Black Connector: K Port is Used for Kenwood and Most Brand Walkie-talkies with the Same Connector Antenna/duplexer installation application: 1. Original multiplexer: Two hands connected to a repeater station, such as a peerless multiplexer, each hand must use two antennas separately! Both antennas must be lifted vertically! And between the two, they tried to distance themselves. At least not less than 5m / 16.4ft. (Two walkie‑talkie antennas prevent parallel erection!) 2. Duplexer: Purchase the corresponding frequency/power duplexer, couple the output ends of the two unit antennas at the "contact point" to the duplexer at the transmitting end and the receiving end respectively, and set the player reservation table of the corresponding frequency (one frequency must It is consistent with the duplexer). In the case of a duplexer, the repeater only needs to connect to an antenna! And there is no special attention when setting up the antenna! 3. We recommend using a duplexer, because there are no special requirements for the antenna when the duplexer repeats the station! As long as the height is sufficient. 4. It is recommended e "Original for Kenwood" or "for Motorola" brand walkie‑talkies. Single/two‑way relay frequency box setting prompt: 1. One‑way relay box transmission mode (conventional relay station mode)! A machine receives signals and sends signals from the machine b. The transmitter/receiver should be set to two different frequencies, the frequency is higher than the regular receiving frequency of the transmitter, and the difference between high/low and high/low is 10m. The larger the frequency difference, the better. 2. The one‑way relay box should not be connected reversely when using the connector, otherwise the relay box will not work. 3. The two‑way plug of the relay box does not divide the input/output, and the transmission mode of the relay box is two directions: a machine receives b sends, and machine b sends and receives a. Package List：1 x Relay Box Note：1. The relay box is an audio trigger mode, so when you use the walkie‑talkie, the volume is adjusted to the maximum, otherwise it may not send. 2. If the transmission delay time is too long (more than 3 seconds), the conventional reason is that the radio transmitting antenna is too close to the trunk, which causes the relay box to transmit signal interference. Can be used to solve the problem of external intercom antenna interference.