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Features of Digital Radio Vocoder

Vocoders are basically used for digital coding of speech and voice simulation. The bitrate for available narrowband vocoders is from 1.2 to 64 kbps.  ...

Read more  Vocoder,  digital radio vocoder

What's the meaning of DOUBLE and SINGLE for the RPT-MOD setting of Retevis RT23

Retevis RT23 is a cross-band repeater HAM Radio, but do you find it can set double or single repeater mode? What's the difference between the two modes?  ...

Read more  Retevis RT23,  DOUBLE RPT MODE

Do you know about GMRS Radio?

The General Mobile Radio Service (GMRS) is a licensed radio service that uses channels around 462 MHz and 467 MHz.  ...

Read more  GMRS Radios

How to import contacts csv of Retevis RT84?

Retevis RT84 is a dual band DMR ham radio and supports to import 120,000 contacts. But do you know how to import the contacts csv into the radio?  ...

Read more  Retevis RT84,  contact list,  amateur radio

What do you think about 220Mhz frequency?

What do you think about 220Mhz? will you choose a 1.25M 220Mhz band HT radio? Please welcome to recommend below.   ...

Read more  1.25M band,  220Mhz frequency band

Types of Ham Radio Operator Licenses

The FCC issues six license classes, each authorizing varying levels of privileges. The class for which each licensee is qualified is determined by the degree of skill and knowledge in operating a station that the licensee demonstrates during an examination to volunteer examiners (VEs) in his or her community.  ...

Read more  Ham Radio Operator Licenses

What is the difference between cross band transmit&receive and repeater?

We know Ailunce HD1 has the cross band transmit and receive function, and Retevis RT23 has the cross-band repeater function. do you know what is the difference between cross band transmit&receive and repeater?  ...

Read more  Repeater,  Retevis RT23,  Ailunce HD1

Something about ARTS The Auto-Range Transpond System

ARTS™, also known as Auto-Range Transpond System, is a type of technology used in two way radios - more specifically, YASUE two way radios. which can be critically important in search-and-rescue applications.   ...

Read more  ARTS system,  The Auto-Range Transpond System

Can ATVers use Ailunce HD1?

ATV is the abbreviation of All-Terrain Vehicle, which is all-terrain off-road vehicle, so ATVers is the person who drives all-terrain off-road vehicle. Do you think ATVers can use Ailunce HD1?  ...

Read more  ATVers,  Ailunce HD1