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AMSAT Opposes FCC Plan to Delete the 3.4 GHz Band

The amateur satellite organization AMSAT commented on a notice from the Federal Communications Commission that proposed the deletion of the 3.3-3.5 GHz (9 cm band) amateur band, of which 3.40-3.41 GHz was originally allocated for the amateur satellite service.  ...

Read more  AMSAT Opposes FCC Plan to Delete the 3.4 GHz Band

Getting to know Bluetooth

Bluetooth is a wireless technology, In recent years, Bluetooth technology has been used on wireless two way radios. Such as on Ailunce HD1, you can connect a Bluetooth adapter. another example, on Retevis RT78, it can be program on APP via Bluetooth.  ...

Read more  Bluetooth technology

Radio amateurs test communications for the impact of a meteorite

radio amateurs are the only ones who can give assistance when communications fail in the face of the devastating power of nature, such as hurricanes or earthquakes.  ...

Read more  radio amateurs in Spain,  radio amateurs

Two-way radio floating function

Definition of floating function: After the walkie-talkie falls into the water, the fuselage floats on the surface and does not sink into the water.  ...

Read more  floating function,  two way radio floating function

ARRL News--Nominations Solicited for Six ARRL Awards

ARRL is inviting nominations for awards that recognize educational and technological pursuits in amateur radio. Nominations are also open for the League’s premier award to honor a young licensee.  ...

Read more  volunteer amateur radio instructor,  individual radio amateur,  ARRL Awards

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

Digital Mobile Radio (DMR) Market Grow Rate Forecast

Digital Mobile Radio (DMR) Market is Expected to Grow at a Significant Rate During the Forecast Period 2019 - 2025.  ...

Read more  DMR market,  DMR Tier II,  DMR market grow rate forecast

The basic terminology of DMR Radio

Nowadays,DMR radios become very popular not only in amateur market but also business market. But There are various terms more specific to DMR that could cause some confusion.  ...

Read more  DMR terminology,  DMR Terms,  DMR Radio Settings

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