What is the difference between the three scan mode of Retevis RT76P GMRS radios?

Retevis RT76P GMRS walkie talkie is the best selling handheld NOAA GMRS walkie talkie, with scan function, the Retevis RT76P has three scan modes:  time scan, carrier scan, and search scan, respectively correspond to "TO" "CO" "SE" in the program software.

Then what is the difference between the three scan mode of Retevis RT76P GMRS radios?

To understand the difference between the three scan modes, we must first understand their definitions. 

"TO" also called time scan, means stay on the current channel for a while after scanning the signal and then continue scanning.

"CO" also called carrier scan, which means stop scanning after scanning the signal until the signal disappears.

"SE" also called search mode, which means stay on the current channel after scanning the signal.

We can understand as follows:

"TO" also called time scan. After the time scan function is turned on, the walkie-talkie starts to scan according to time. When a signal is scanned in a certain channel after a certain period of time stays on that channel, the next scan is started, and the cycle is repeated. The key point of time scan is time. After the signal is scanned, the next scan is performed in a fixed time period.

"CO" also called carrier scan. After the carrier scan function is turned on, the walkie-talkie starts to scan. When a signal is scanned in a certain channel, it will stay on that channel all the time. Unless the staying channel signal disappears, the next scan will be performed. The key point of the carrier scan is the carrier. After the signal is scanned, the signal shall prevail. If the signal is always there, it will stay on the channel until the signal disappears before starting the next scan.

After the search scan function is turned on, the walkie-talkie starts to scan. When a signal is scanned in a certain channel, it will stay on that channel, regardless of whether the signal of the channel disappears or not. The key point of the search scan is the search. Once the signal is searched, it means the instruction is completed, then the scan will stop, no matter what the situation, the next scan will not be performed.

For detail video display, please click the official Youtube video of Retevis Solutions to view the actual demonstration effect:

Retevis Solutions focus on supply long range GMRS walkie talkie and radio solutions, if you have any questions about our radio or need any help, welcome to contact us: info@retevis.com.