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Tag Archives :Amateur radio

How to update Ailunce HD1 date and time

Ailunce HD1 is a dual-band DMR radio, and can also be adjusted to single-standby and display time information. Today I'll show two ways to update date and time on Ailunce HD1.  ...

Read more  Ailunce HD1,  update system time,  Amateur radio

How to do when Ailunce HD1 can't turn on

If you have problems when turn on your radio, you can read the blog. We've put together some solutions to common boot issue for your reference.  ...

Read more  ailunce HD1,  boot problem,  amateur radio,  Dead issue

Chinese Satellite Profiles Earth’s RF Spectrum as Seen from Lunar Orbit

In July, a contact between radio amateurs in Germany and China took place on July 1 via LO-94. The two-way exchange was between Reinhard Kuehn, DK5LA, in Sörup, Germany, and Harbin Institute of Technology club station BY2HIT (operated by Wei Mingchuan, BG2BHC), in Harbin, China, via the onboard GMSK-to-JT4G repeater — the first such contact ever made.  ...

Read more  Amateur Radio,  RF interference

How to Update Firmware on AilunceHD2

This article we will learn how to update firmware on AilunceHD2.   ...

Read more  AilunceHD2,  DMR radio,  Amateur radio

ISB Modulation

Like VSB, ISB is also a modulation method between double sideband (DSB) and single sideband (SSB).  ...

Read more  Amateur radio,  ISB

Why do we need VSB modulation

in order to avoid this loss, a technique was chosen, which is a compromise between DSB-SC and SSB, called Vestigial Sideband (VSB) technique.  ...

Read more  Amateur Radio,  VSB

Why Ailunce HD1 has no prompt tone when receiving SMS?

Why Ailunce HD1 has no prompt tone when receiving SMS?  ...

Read more  Ailunce HD1,  SMS,  Amateur radio

Why do hams like the DRM

DRM is a digital commercial broadcasting model that provides FM-equivalent sound quality to shortwave broadcasts.  ...

Read more  Amateur Radio,  DRM

Just need a Inverter

We always use the adapter to convert AC to DC, do you know how to invert DC to AC?  ...

Read more  Inverter,  DC to AC,  amateur radio

The footswitch for PTT that you need is coming

Do you have a footswitch for PTT? Can you provide a 3.5mm plug for PTT? Yes, Ailunce FS01 is here to meet your needs.  ...

Read more  Amateur Radio,  footswitch,  PTT