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Category Archives :User Tutorial

How to update Ailunce HD1 date and time

Ailunce HD1 is a dual-band DMR radio, and can also be adjusted to single-standby and display time information. Today I'll show two ways to update date and time on Ailunce HD1.  ...

Read more  Ailunce HD1,  update system time,  Amateur radio

Principles of setting the squelch level

Squelch function is to automatically lock the low-frequency amplifier of the radio during the standby and the interval between calls, so that noise will not be output from the speaker or headphones.  ...

Read more  squelch level

How to choose UHF or VHF for amateurs?

in the radio world, UHF and VHF two options can make all the difference when it comes to choosing the right radio for your specific uses. Here are a few facts about UHF and VHF radios – and how to choose between them.  ...

Read more  UHF,  VHF,  2M BAND,  70CM band,  amateur radio bands

Dual Band Telescopic Antenna-Retevis RH770

Do you want to QSO anywhere? If yes, the dual-band high gain telescopic antenna will be a good choice.  ...

Read more  Retevis RH770,  Dual Band antenna,  High gain telescopic antenna

Do I need to create a RX group list in the CPS?

is it necessary to write a Rx group list in the CPS? You can add all your favorite talk groups in one RX group list, also the talk groups with the same time slot in an RX group list. also, make all the talk groups belong to the same country in one RX group list. The principle is you can hear any talk groups that are in one Rx group list but only can transmit to the TX contact associate with the current channel. ​  ...

Read more  Rx Group list

Adjust RX/TX Offset (BER) for MMDVM Hotspot

Is there an agreed upon average RX/TX setting for the DMR Hotspot?  ...

Read more  RX/TX offset,  Pistar offset

How to program DMR channel on Ailunce HD1 for newbie

It's the second blog about programming the Ailunce HD1. Today I'll show the detail setting steps of DMR channel on radio and in software.  ...

Read more  Ailunce HD1,  DMR channel setting,  newbie

How to program the analog channels on Ailunce HD1 for newbie

Many newbies email to us to ask how to program the Ailunce HD1. Today I'll show the detail setting steps of analog channel on radio and in software.  ...

Read more  Ailunce HD1,  Anolog channel programming

Why use the Amplitude Modulation System for the Aairband?

In order to ensure the smooth communication of information, it is guaranteed that the signals sent at the same time can be received, and the amplitude modulation system (AM) is still used in the aviation industry and other industrial communication fields.  ...

Read more  AM Airband,  Why Airband AM system