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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

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