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Ailunce HS2 using software-defined radio SDR technology. Radio performance and functions are packaged in a compact and lightweight portable size. Whether you are taking your hobby to outdoor, or some other" on the air" location, the Ailunce HS2 is an eye-catching rig.  ...

Ailunce HS2 is an ultra-portable full-frequency full-mode SDR radio. Receive frequency coverage 300K~1.6GHZ. The built-in network port can realize remote operation and remote firmware upgrade. Ailunce HS2 adopts a full keyboard design, built-in Bluetooth module, sound card module and serial communication port module. Full support for currently popular radio control software and logging software.   ...

Do you know how to get QSO with amateurs from all over the world use Ailunce HD1?  ...

we get a very imprssion experience how to receive SSTV image with AilunceHD1.  ...

Frequency reverse means reverse radio transmit frequency to receive frequency. and at the same time exchange the CTCSS tone.   ...

It was a very unusual situation, hams use their U/V handheld to help quickly find the missing kids.  ...

Retevis RT85 is an analog radio which comes with emergency alarm function. Its frequency range is VHF 136-174Mhz and UHF 400-470Mhz. For the first time use full dot matrix screen.  ...

Digital filter can effectively filter out the frequency point of a specific frequency or the frequency other than the frequency point and is a device or circuit that has a signal processing effect. It is equivalent to the "sieve" of frequency.  ...

Recently Local HAMs use a repeater to assist in rescues. Let's have a look at how they did a repeater call to help prevent more damage.    ...

Single-frequency repeater, it is a repeater that uses only one frequency to achieve the repeater function. It allocates one timeslot to receive a signal and the other to transmit it at the same frequency, using DMO mode to extend radio coverage.  ...