The same frequency relay, hence the name, is the relay service established on the same frequency. At present, Hytera's newly released PD-980 flagship top handheld professional machine comes with this advanced digital co-frequency relay function.
Let's learn together: What is the working principle of the same frequency relay? For example: "Your mother told me to tell you to go home early to eat." In the example, I am actually the same frequency relay. I first listened to your mother's message and then relayed it to you. This process . The same-frequency relay is a principle that uses the same frequency to receive information first, then transmit the received information, and repeat it. Technically referred to as TDMA time division multiple access, it can also be called time division duplex.
However, I don't recommend that you go deeper into too many professional terms. More, I hope you can remember this simple example. When someone asks you: "What is the same frequency relay?", you Can tell him: "Your mother told me to tell you, go home early to eat" This example, you can.
This new feature is built into Hytera's flagship model, the PD-980, so that everyone can fully try and understand the role and use of the same-frequency relay.
In the past, the repeater required two machines for receiving and transmitting, at least one antenna and one duplexer, and a pair of frequencies. Basically, this is the most typical repeater erection scheme (whether analog or digital). However, the emergence of co-frequency relays is simplified to only one antenna per machine. Take the Hytera PD-980 as an example. In a typical case, find a high-position machine, that is, after the deployment is completed and the task is completed, the machine can be taken away.
What are the benefits of co-frequency relay?
First, saving frequency resources requires only one frequency.
Second, save money and don't need to buy a duplexer.
Third, there are fewer restrictions, no duplexers are needed, and are not limited by the duplexer frequency bandwidth.
Fourth, rapid deployment, power-free antenna-free installation (for handheld relay)
Fifth, users using the same-frequency relay can adopt an adaptive scheme, which eliminates the user's manual switching of the relay and non-relay communication environment and avoids human error.
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