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Retevis RA25 20W UV Dual Band Amateur Radio

Retevis RA25 Mobile Radio has an elegant and sturdy shape. The ergonomic front panel combined with an intuitive menu, ensures easy access and management of the advanced functions available to the user. This amateur mobile transceiver is especially conceived for amateurs who love outdoor activities and it pursues philosophy of innovation and practicality.  ...

Read more  amateur mobile radio,  Retevis,  Retevis RA25

Does the ham radio license also cover the GMRS license?

As we known from FCC rules, an amateur radio license does not confer GMRS frequencies.  ...

Read more  GMRS license,  Ham Radio license

Have you heard of M17 Protocol ?

M17 is a new digital radio protocol in development as an alternative to those currently available, with freedom in mind. Freedom in the code, protocol, voice codecs, and hardware. The goal is to provide a better option for digital radios in the future.  ...

Read more  M17 Project

Something about Busy Channel Lock-out Function

Busy Channel Lock-out feature often abbreviated to BCL on two way radios. But it depends on the different radios, on some radio it says BCL, this is also commonly referred to as TX Inhibit on some other radios. For example, on Retevis RB17P, it says "Busy Lock". but on Ailunce HD1 it says" TX Authority".    ...

Read more  BCL,  Busy Channel Lock-out,  Retevis RB17P,  AilunceHD1

Frequency Sweep Feature on Retevis RA685

Radio frequency sweep or frequency sweep or RF sweep apply to scanning a radio frequency band for detecting signals being transmitted there. On Retevis R685 analog radio, you can do a frequency sweeping.   ...

Read more  Radio frequency sweep,  frequency sweep,  RF sweep

Is There a Good Radio Recommend for Entry Level Amateur

We often get some questions said" is there a good radio recommend for me entry level amateur? Maybe you are just starting into ham radio and you have no clue what possibilities are even out there. Let us talk about it in this article.  ...

Read more  AilunceHD1,  amateur radio,  ham radio

New 5W Dual band Ham Radio Retevis RA685

Retevis RA685 is EU version dual band ham radio. The transmit frequency is 144-146Mhz,430-440Mhz, and the receive frequency is 136-174Mhz,400-480Mhz;  ...

Read more  Retevis ham radio,  Retevis RA685 analog radio

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