1. Built-in frequency sweep output function (full frequency sweep time is less than 5 seconds)

The low-frequency signal generator has the function of automatically changing from low-frequency to high-frequency (or vice versa), which completes the low-to-high or high-to-low change process of all frequencies between 100Hz and 20KHZ, and the time of this process is 5 seconds.

2. With external sweep control input interface (control signal is 0-5V, control current is less than 1mA)

The output frequency of the low-frequency signal generator can be controlled externally (with external control interface), the voltage of the external control frequency change is 0-5V, and the control current is less than 1mA. When the external control voltage changes between 0-5V, the output of the low-frequency signal generator can vary from 100HZ to 20KHZ.

1.Better use of spectrum resources. Similar to cellular digital technology, digital walkie-talkies can load more users on a designated channel and improve spectrum utilization. This is a solution to frequency congestion and has long-term significance.

2.The voice quality can be improved. Because digital communication technology has the internal error correction function of the system, and analog walkie-talkies can achieve better voice and audio quality in a wider range of signal environments, and the received audio noise will be considerable and the sound will be clearer.

3.It can improve and improve the integration of voice and data, and change the weakness of the control signal's increased communication distance. Compared with similar integrated analog voice and data systems, digital walkie-talkies can provide better data processing and interface functions, so as to make more Multiple data applications can be integrated into the same two-way wireless communication base station structure, which makes the integration of voice and data services more complete and more convenient.

The wired and wireless trunking communication command system is a set of voice dispatching system suitable for group command, including dedicated command, group command, leapfrog command and conference command functions. It can also expand the digital signaling standards of a variety of telephone exchanges, and has a variety of narrowband and broadband voice data interface capabilities. It can be used for position command operations, training exercises, anti-terrorism and stability maintenance, and rescue and disaster relief.

Wired and wireless trunking communication command system consists of host, junction box, remote command box, iPad command terminal, etc.;

This machine is a backpack structure, which can be connected to a standard battery, one-button convenient operation;

It can meet the voice terminal access of 20 positions (multi-function magnet stand-alone);

It can meet the access of 2 magnets for connecting to the superior unit;

Can meet 2 automatic outside line access, used to connect the superior unit;

It can meet the access of 4 groups of amplifying terminals, and can realize the voice monitoring of 4 groups at the same time;

Can provide 6 groups of radio station interfaces, which can be assigned to 4 groups by setting;

The command host and the remote command box are equipped with 2 call handles;

With dual STM-1 optical port expansion, and E1 signaling (No.1, No.7, PRI, V5.2, etc.) expansion capabilities.