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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

Christmas transmission from Grimeton Radio / SAQ

In the morning of Christmas Eve, December 24, we will try to start the old Alexanderson 200 kW transmitter, from 1924 and send out a Christmas message on VLF 17.2 kHz CW. The transmitter will be tuned up from around 08:30 (07:30 UTC) and a message* will be transmitted at 09:00 (08:00 UTC).  ...

Read more  Grimeton Radio,  SAQ

Do I need to create a RX group list in the CPS?

is it necessary to write a Rx group list in the CPS? You can add all your favorite talk groups in one RX group list, also the talk groups with the same time slot in an RX group list. also, make all the talk groups belong to the same country in one RX group list. The principle is you can hear any talk groups that are in one Rx group list but only can transmit to the TX contact associate with the current channel. ​  ...

Read more  Rx Group list

Adjust RX/TX Offset (BER) for MMDVM Hotspot

Is there an agreed upon average RX/TX setting for the DMR Hotspot?  ...

Read more  RX/TX offset,  Pistar offset

Ailunce Radio Wireless Bluetooth Kit Earpiece and PTT

Retevis has a radio Bluetooth kit, It can let your radio achieve Bluetooth pairing through Bluetooth adapter with the Bluetooth earpiece and Bluetooth PTT. It can give you a better wireless experience. Here I will show you some information about the radio Bluetooth kit.  ...

Read more  Radio Bluetooth Kit,  Wireless Earpiece,  Wireless PTT

What's explosion-proof walkie-talkies?

Do you know explosion-proof walkie talkie? Today, I'll share something related to you in the blog.  ...

Read more  explosion-proof walkie talkie,  Retevis RT56