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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

Dual Band Telescopic Antenna-Retevis RH770

Do you want to QSO anywhere? If yes, the dual-band high gain telescopic antenna will be a good choice.  ...

Read more  Retevis RH770,  Dual Band antenna,  High gain telescopic antenna

AMSAT 50th Anniversary Awards Program

The Radio Amateur Satellite Corporation (as AMSAT is officially known) was formed March 3, 1969 as a not-for-profit, 501(c)(3) educational organization chartered in the District of Columbia. To help celebrate 50 years of Keeping Amateur Radio in Space, AMSAT is proud to announce the AMSAT 50th Anniversary Awards Program.  ...

Read more  Radio Amateur Satellite Corporation,  AMSAT

Do you really understand FM?

NFM is a narrowband frequency modulation method, which is suitable for communication signals with a channel bandwidth of 25kHz / 12.5kHz; WFM is a wideband frequency modulation method, which is suitable for receiving broadcast signals with a channel bandwidth of about 180kHz  ...

Read more  WFM,  NFM

What is the DMR Radio Zone?

Zones are just a way to manage large number of channels, much like file folders or directories on your computer.  ...

Read more  Radio Zone,  All Channels

Amateur radio Yagi antenna-Ailunce AY01

Do you know the Yagi antenna? The yagi antenna works very well in direction finding and long-distance communication. Today we'll learn the Yagi antenna with Ailunce AY01.  ...

Read more  Amateur radio antenna,  Yagi antenna,  Ailunce AY01

Retevis RT72 U/V Dual Band 5W Analog/Digital Walkie Talkie

Retevis RT72 is a dual band, dual standby, dual mode compatible--analog/digital cost-effective hand held DMR radio. RT72 is compatible with digital and analog modes, the frequency covers VHF 136-174Mhz and UHF 400-470Mhz. Enough 4000 memory channels, 10,000 digital talk groups, also support import 130,000 digital contacts.  ...

Read more  Retevis RT72 DMR radio,  Retevis RT72

Santa visits kids at a Tampa hospital - via ham radio

The ham radio equipment usually is used for emergencies, like hurricanes. Why not use it to call Santa?  ...

Read more  Santa visit children via walkie talkie

RT50 IP67 DMR UHF Digital Tube Character Display Radio

Retevis RT50 is a UHF DMR radio, compatible with digital and analogue mode, using TDMA technology, designed with Tier II, AMBE++ vocoder, compatible with Mototrbo protocol etc. Its exterior design is simple and generous. IP67 waterproof and dust-proof function allow you use them anywhere without worrying the surrounding environment.  ...

Read more  Digital Tube Character Display Radio,  RT50