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How to program Retevis RT72 without PC

If you're outdoor, with no PC and programming cable to use, you can program your Retevis RT72 via the front panel. We'll show the key settings of programming Retevis RT72 without PC in the blog.  ...

Read more  RetevisRT72,  HamRadio,  FPP

How to program Retevis RT72 in the software?

Recently many customers want the codeplug of Retevis RT72. Today we will show the details of programming it in the software, then you can try to make your own codplug.  ...

Read more  RetevisRT72,  Ham Radio,  DMR Radio

How to set mixed receive for Retevis RT80?

Can I receive analog as well as DMR in a channel? many customers ask the questions. I want to say yes if you own a Retevis RT80. Retevis RT80 support to analog, DMR, and mixed-mode. today let's learn more about mixed receive.  ...

Read more  RetevisRT80,  Mixed receive,  DMR Radio

Why the Coax is 50 ohms?

If you play with the coaxial cable, you probably know it is available in a number of different impedances. but the most common is 50ohm coaxial cable for us to use for amateur radio. Do you know why is 50ohm, or any other number?  ...

Read more  Coax cable,  AmateurRadio,  feeder cable

Do you know the setting items of your Ailunce HS2

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.  ...

Read more  AilunceHS2,  SDR Transceiver,  Amateur Radio

Tips for the contacts display of Retevis RT3S

Recently many customers feedback the contacts importing of Retevis RT3S works abnormal. so we sum up the problems. if you want to import the contacts list into the Retevis RT3S, or have problems when import the contact list, please try to check again refer to the blog.  ...

Read more  Retevis RT3S,  Contacts,  DMR Radio

Great Circle Maps for amateur radio

We know that the shortest distance is straight line between two points. but it's often not simple when hams communicate with each other from around the world. Because it's not the shortest distance geographically if we connect two points directly on world map, we need to select the right direction of antenna to achieve the better communication effect. Especially for directional antennas, such as Yagi antennas. we must rely on the great circle Maps.  ...

Read more  Great Circle Maps,  amateur radio,  Yagi antenna

Which mode is Ailunce HD1 in when you program it?

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?  ...

Read more  Ailunce HD1,  Program,  Amateur Radio

How to show contact information on Retevis RT3S?

Hams come from all around of the world. so sometiome we don't know anything about our contacts though we uaual make QSO with each other. If you import the contact list including the frequently used contacts into your Retevis RT3S, the radio will show the basic information when they call you. so how to show contact information on Retevis RT3S?  ...

Read more  Retevis RT3S,  Contacts,  CSV

What functions of the Ailunce HS2 keys

Due to design, every key of Ailunce HS2 has more than one function. There are total 30 keys in the front pannel of Ailunce HS2. We have summarized the basic key functions except for 10 numberic and 4 direction keys in the blog. If you're the user of Ailunce HS2, please refer to the blog or contact us feel free.  ...

Read more  AilunceHS2,  SDR Transceiver,  AmateurRadio