ITEM NAME:RPT-2K Two Way Relay Walkie Talkie Repeater Box For Two Handheld Radio Baof Z7B1 RPT-2K Two Way Relay Walkie Talkie Repeater Box For Two Handheld Radio Baof Z7B1 The matters needing attention: The relay box for audio trigger mode, so when you use the walkie talkie volume to your maximum, otherwise may appear not to send state. Such as transmission delay time is too long (more than 3 seconds), conventional because walkie talkie transmit antenna near the trunk box too close to cause the transmitted signal interference caused by relay box! Can be used to solve the problem of interference of external interphone antenna! The frequency of most of the handheld walkie-talkies on the market is 400-470MHz, and the max output power is 5W. This makes the effective talking range about 5-8KM(only in wide-open area). In some areas such as in the city with tall buildings, the range is only 1-2 km, or less. In order to have long-distance communication, we need a repeater. Standard repeaters have a high cost, and can be complicated to install, so there was a need for a simple and inexpensive repeater. The operation is very simple, and no power supply needed!You do not need to change any part of the radio.All you need is just two handheld radios and connect the cables to the external mic/spk ports (2.5mm and 3.5mm). Single / two way relay box frequency set prompt: The one-way relay box forwarding mode (conventional relay station mode)! A machine receives the signal, the B machine transmission signal. Sending / receiving machine must be set to two different frequencies, the frequency is higher than the conventional transmitter set receiver frequency, and high / lower, high / low frequency difference of the 10M, the frequency difference is bigger is better. The one-way relay box in the process of using the jack do not reverse connection, otherwise this trunk box will not work..Can be used to solve the problem of interference of external interphone antenna! Walkie Talkie Type: Portabl. In order to have long-distance communication, we need a repeater. Standard repeaters have a high cost, and can be complicated to install, so there was a need for a simple and inexpensive repeater.
