+86 15093323284

 Longgang,ShenZhen, CN

Tag Archives :amateur radio

QRP Communication

For hams, QRP refers to transmitting at reduced power. QRP radio means very low-power radio, normally 5W or less power​. QRP Communication is one of the more exciting projects in the activities of amateur radio.  ...

Read more  Amateur Radio,  QRP

What's the MARS?

MARS is short for Military Auxiliary Radio System and is a United States Department of Defense-sponsored program. The program is a civilian auxiliary consisting primarily of licensed amateur radio operators who are interested in assisting the military with communications in a region.  ...

Read more  MARS,  Amateur Radio

Why do you need a desktop microphone for your walkie-talkie?

With the popularity of radio, many hams built their radio rooms. In addition to basic equipment such as radio and power supply, we found that they always like to purchase desktop microphones. Do you know why they have to buy a desktop microphone when owning a handheld microphone?  ...

Read more  Desktop microphone,  Amateur Radio

How to select and download the right driver of Retevis radios?

Do you like to program your radio in software? If yes, you need to download the right driver of your radio. do you know how to select the right driver for your Retevis radio?  ...

Read more  Driver,  Retevis,  Amateur Radio

Roaming Function on Retevis RT73

Roaming is when a radio is set to automatically move between repeaters depending on which has the strongest signal. In the roaming system you have to set the RSSI (Received signal strength indicator) threshold which is minimum signal strength that the radio will consider to be strong enough before it starts searching for a stronger signal. Roaming function is a safety feature on the mobile radio.  It has roaming fucntion on Retevis RT73.   ...

Read more  amateur radio roaming,  RT73 romaing

What do you need to know when installing an outdoor antenna

Why is your signal report of 50W radio not as good as the one just 5W radio? That's because in addition to the environmental loss, the power of the radio has a lot of loss in the antenna system. So many hams like to install them antenna outdoor to reduce antenna system loss. But what do you need to know when installing an outdoor antenna?  ...

Read more  Amateur Radio,  Outdoor Antenna

How to switch IARU frequency regions on AilunceHD2

On Ailunce HD2, When the radio is off, Press [MENU]+6,turn on the radio. enter the password:654321. Switch IARU regions.  ...

Read more  AilunceHD2,  IARU regions,  DMR RADIO,  AMATEUR RADIO

What is A/B Time of Ailunce HD1

Ailunce HD1 is a dual-band and dual standby DMR amateur radio developed by Ailunce. Since its release, many versions of firmware and software have been upgraded according to customer needs.  ...

Read more  Ailunce HD1,  Amateur Radio

How to select the battery for your HF tranceiver

Many hams like to make QSO outdoor, so the battery is very important to them. Do you know what are the common amateur radio portable batteries?  ...

Read more  Amateur Radio,  Battery

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