TC-790M is a cluster walkie-talkie that meets GA176-1998 Public Security Police Standard, and has passed the inspection of the Ministry of Public Security. It has powerful cluster functions, supports CPSX and MPT-1343 formation plans, and can meet the needs of domestic public security systems and other users using standard MPT-1327 signaling.
This manual provides safety information, product inspection steps, and detailed descriptions of the TC-790M UHF cluster walkie‑talkie. It explains the layout of controls, battery handling, antenna installation, and the various operating modes such as cluster, normal, and advanced functions.
Additional sections cover programmable keys, menu navigation in both Chinese and English, troubleshooting, maintenance, warranty terms, and recommended accessories. The document is intended for end users and field technicians who need to operate and maintain the device safely and efficiently. This manual is written in Chinese.
| Battery type | 2100 mAh lithium‑ion or 800 mAh nickel‑metal‑hydride |
|---|---|
| Power output | 1 W (low) or 4 W/5 W (high) |
| Frequency band | UHF |
No – the device must be turned off before entering any explosive or flammable area.
Only the designated batteries and charger supplied with the unit may be used.
Only qualified technical personnel may perform repairs; users should not disassemble the device.