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Shortwave is the originator of radio. When the radio was invented, the transmission method was shortwave. In modern times, the frequency band used by radio has expanded to ultrashort wave, microwave, and even higher, but short wave still plays an extremely important role.   ...

Which NGP antenna suitable for RetevisRT73? MR200 U/V Dual Band NGP Antenna and NMO Mount  ...

Understanding the different modes of digital voice can enable amateurs to clearly understand the bandwidth and transmission rate used by the digital voice mode. It can also help us understand which mode is easier to get started and which mode should be experienced in the future.  ...

Radio direction-finding is the process of using instruments to determine the direction of radio waves based on the propagation characteristics of electromagnetic waves.   ...

How does the TimeSlot Works on RetevisRT73?  ...

Can you Monitor Different Color Code on Retevis RT73? The answer is Yes.  ...

How to send SMS text message on RT73?  ...

when you connect to this repeater, if you use a digital radio you need to set a digital channel and also an analog channel. But if you have RetevisRT73 mobile radio, you can set only one channel to monitor this repeater.  ...

Why cant use the radio when it is on charging? How to protect your battery?   ...

The baud rate is the number of code symbols transmitted per second. It is a measure of the symbol transmission rate. For electronic communication, the baud rate is the modulation rate, which refers to the rate at which the effective data signal modulates the carrier, that is, the number of times the carrier modulation state changes per unit time.  ...