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How to connect Ailunce HD1 to a DMR Hotspot

Do you know how to get QSO with amateurs from all over the world use Ailunce HD1?  ...

Read more  How to connect Ailunce to a DMR Hotspot,  Ailunce DMR Hotspot,  MMDVM DMR Hotspot

What is the Difference Between Narrowband and Wideband on GMRS Radios?

Today, let us talk about the the difference between GMRS wide band and narrow band.  ...

Read more  narrowband,  wideband,  GMRS radio

The Chinese Space Station will Carry Ham Radio Equipment in Q3 2022

The IARU satellite frequency coordination panel report an application has been submitted for an amateur radio payload to be hosted on the Tiangong space station.  ...

Read more  IARU satellite,  Chinese Space Station

Are you ready to take pictures? International Space Station 145.80MHz Russian Astronauts Send SSTV Images for 3 days.

2022 April 7 to April 8, International Space Station 145.80MHz Russian Astronauts Send SSTV Images for 3 days.  ...

Read more  ISS,  SSTV,  SSTV Images

How to Program Retevis RA685 to Works on an Analog Repeater

As we all known, radio amateurs often connect to a repeter to extend the communication range. Today, we are going to take Retevis RA685 as an example to learn how to connect to an analog repeater.  ...

Read more  Retevis RA685

What is the Length of the Antenna to Achieve the Best Effect

when the length of the antenna is 1/4 of the wavelength of the radio signal, the transmission and reception conversion efficiency of the antenna is the highest.  ...

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【Amateur Radio News】FCC $35 Amateur Application Fee Effective Date Announced

For GMRS users, the new $35 license fee changes will go into effect 30 days from the date of publishing in the Federal Register, which means they will now be in effect on 04/19/21.  ...

Read more  GMRS Fee,  FCC Amateur Radio license application fees

What is the Channel Work Alone? How does it works on Retevis RT3S DMR Radio?

"Lone Worker" gives a tone at regular intervals to which the lone-worker needs to respond by pressing the PTT button. If the worker fails to respond, within the pre-defined time, the radio will then go into emergency mode, and help and support would be sent to them.  ...

Read more  lone worker,  RT3S lone worker,  Retevis RT3S