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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. ​  ...

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

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

If connect a Kenwood 2-pin Bluetooth Earphone to Ailunce HD1, you need to connect a audio adapter firstly.  ...

A new DMR model Retevis RT72, it is an upgrade of Retevis RT84, it has GPS function, and supports 130,000 digital contacts.  ...

Tutorial to set Ailunce HD1 GPS, and how to get Ailunce HD1 GPS location.  ...

Mini1300 4.3" LCD 0.1-1300MHz HF/VHF/UHF ANT SWR Antenna Analyzer Meter Tester.  ...

In order to ensure the smooth communication of information, it is guaranteed that the signals sent at the same time can be received, and the amplitude modulation system (AM) is still used in the aviation industry and other industrial communication fields.  ...

Ailunce HD1 software Update version 2.18 and Firmware update version V1.64  ...

Basic Measurements of antenna analyzer is Return Loss,VSWR,Cable Loss.  ...