Tag Archives :Amateur radio

Ailunce HD1 is the ham radio and supports 20000 priority contacts enable you to call the people important to you more conveniently. but do you know how to import the priority contacts file?  ...

APRS is short for Automatic Packet Reporting System, and hams like to use it to transmit GPS information or to query the movement trajectory of a friend's radio. But do you know that APRS has a voice alert function?  ...

RTLSDR is an innovative invention of the DVB-T USB receiver, the complete software-defined radio.  ...

IFG is short for Intermediate Frequency Gain and is an important setting item for radio. Intermediate Frequency usually refers to a signal obtained by frequency conversion of high-frequency signals in the superheterodyne receiver Circuit.  ...

Lora is short for Long Range. It is a low-power LAN wireless standard created by Semtech company. Its biggest feature is that it can travel farther than other wireless methods under the same power consumption condition, achieving low power consumption and Long-distance unity, it is 3-5 times longer than the traditional radio frequency communication distance under the same power consumption.  ...

At present, many amateur radios on the market not only have CH mode but also VFO mode. CH mode is also called Memory mode. In the mode, all commonly used channels that have been programmed in software can be displayed. So what is the VFO mode?  ...

At present, most of the radios we use are within 100W, or even below 50W. But with the increasing electromagnetic interference in cities, it has become more and more difficult to make QSO with hams around the world with only these radios. In order to improve the quality of communication and increase the transmitting power of the radio, it is necessary to buy a short-wave high-power amplifier to work with our radios.  ...

Ailunce HS2 is an ultra-portable full-frequency full-mode SDR radio. There are many setting items for the user to set. So, if you want to use the Ailunce HS2 more masterly, you need to understand the setting menu clearly first.  ...

We know when we upgrade the firmware or initialize the Ailunce HD1, the radio need to be in the right mode, such as it must in DFU mode, when we upgrade the firmware. Then when we program the Aliunce HD1, must the Ailunce HD1 be in a particular state?  ...

After we complete , it needs to be debugged. The purpose of antenna debugging is to make the antenna system resonate at the transceiver frequency by trimming the length of the antenna element. Match the impedance of the antenna system with the transceiver impedance of the radio. Debugging generally uses standing wave meter, power meter or antenna analyzer.  ...