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Category Archives :Radio Function

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

The Benefits of Using Temperature-controlled Fans in Mobile Radios

So now many vehicle-mounted stations are equipped with temperature-controlled fans, and the air pressure and air volume of the fans are controlled by the temperature changes in the vehicle-mounted stations to achieve the effect of energy-saving.  ...

Read more  Temperature-controlled Fan

The SQL and SQL Level of Walkie Talkie

The purpose of squelch is to strictly suppress the noise, but if the suppression is excessive, the weak call signal will also be restricted and cannot be received.  ...

Read more  squelch,  squelch level

Why is necessary to set the squelch level?

Walkie-talkies communicate with each other by radio signals. Different from wired communication, background noise will inevitably appear in radio communication. This kind of noise is tiresome and causes auditory interference and fatigue to users. The purpose of setting the squelch level is to control the influence of back noise.  ...

Read more  Squelch level,  Ailunce HD1

What's the difference between scan and scanner of radio?

For hams, the scan is a very common and practical function. With the continuous development of amateur radio, the new word scanner has appeared. So what is the scanner, and what is the difference between scan and scanner?  ...

Read more  Scan,  scanner,  Amateur Radio

How to Set HD1 Talk Permit Tone

What’s talk permit tone? This alert tone sounds after the Push-to-Talk (PTT) button is pressed and the radio is able to transmit on the channel. This is to prompt the user to begin speaking.  ...

Read more  Talk Permit Tone

How to set the HD1 roger beep?

Roger beep is a transmitter ending tone. It is only work on analog mode. If you open this function, after you release the PTT, the receiver will receive a tone. The tone indicates you have transmit over.  ...

Read more  Roger Beep

What Does A Radio Repeater Offer?

In general, radio waves travel in straight lines. They can go around and through things but this can drastically affect the strength and clarity of the signal. This causes problems when you’re operating a radio system in a built-up, hilly, or mountainous area.   ...

Read more  Repeater

How to Save my Favorite FM Broadcast Channel via radio keypad?

We all know that HD1 is an FPP radio. It allows us to program the radio via the radio keypad. Can we save my favorite FM broadcast channel via the radio keypad? Yes!  ...

Read more  FM Broadcast,  HD1

How Can We Use the Hang Up on Ailunce HD1?

Hang Up only work on digital mode. it means the radio will transmit as the last receive information within the Hang Up setting time.  ...

Read more  HD1,  Hang Up