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How to set and send the Repeater Pilot Tones on Retevis RT95  ...

Retevis RA86 is the new mobile radio with the Fully Integrated Control Microphone and low-profile hideaway unit.  ...

Like VSB, ISB is also a modulation method between double sideband (DSB) and single sideband (SSB).  ...

in order to avoid this loss, a technique was chosen, which is a compromise between DSB-SC and SSB, called Vestigial Sideband (VSB) technique.  ...

How to choose the microphone for Ailunce HD1  ...

How to display channel name on Retevis RT72  ...

Why Ailunce HD1 has no prompt tone when receiving SMS？  ...

There are two ways to set DTMF of Retevis RT95, including set in the software or on the radio.  ...

Some customers think that the current standard configuration is full-button microphones, and should be equipped with non-button microphones, but other customers feedback that they need more functions for their mic of mobie radio, such as adding side buttons, so that customers can customize the function of the side buttons like a handheld station.  ...

DRM is a digital commercial broadcasting model that provides FM-equivalent sound quality to shortwave broadcasts.  ...