Blog

Alphabet interpretation is widely used in amateur radio communication. Due to the low output power of amateur stations and the complicated factors of radio wave propagation, the distortion or fading of the received speech signal is serious, which affects the analysis and identification of information.  ...

In fact, the essence of wireless interference is electromagnetic interference. Therefore, in order to solve this problem, it is necessary to understand and analyze electromagnetic interference in order to find protective measures and effective methods for achieving electromagnetic compatibility.  ...

Manage Dynamic talkgroup and Static Talkgroup on Brandmeister.  ...

Ailunce HS1 SSB HF SDR HAM Transceiver  ...

Upgrade my MMDVM duplex hotspot to support VHF/UHF now. Assemble them together again.  ...

SSID of the APRS protocol specification  ...

APRS Display Symbols  ...

The 2019 NRR will be held 0000 UTC March 2 to 2359 UTC March 10. Registration for the 2019 NRR is NOW OPEN!  ...

When we start to play a DMR radio, we need to get a DMR id first. If we want to use the DMR radio to the network. You need to register a DMR id, and the id is the unique identification, just like the cellphone number.  ...

Share the experience how I build a digital voice hotspot with MMDVM duplex board and Raspberry Pi  ...