Greetings from Japan
Posted: Mon Feb 03, 2025 8:41 am
I’m happy to join you.
In Japan, officially approved DMR radios are not sold.
Therefore, We need to apply individually to obtain authorization.
This is because Japan's amateur radio system is not a blanket licensing system like in the United States.
Specifically, We need a transmission system diagram of the radio (name of the transistor or chip in each block), the voltage of the end stage, and measurements that show that the radio complies with Japanese spurious regulations.
If I can find a transmission system diagram on the internet, spurious measurements (It's OK with TynySA) are not too difficult.
I am just starting to learn about DMRs, so I have purchased several of them and am gathering information on the net.
I have already obtained system diagrams for some of the models, but I still do not have the system diagram for the remaining TYT MD-619 and the model number of the end stage transistor for the MD-UV380.
Ultimately, I plan to email the person or manufacturer who has the information, but I decided to do as much preliminary research as I can on my own, which is why I joined here.
I also plan to use the MD-UV380 and DM-1701 with the OpenGD77.
There is a lot of useful information here on DMR and I will continue to read it.
Thank you for your continuous support.
In Japan, officially approved DMR radios are not sold.
Therefore, We need to apply individually to obtain authorization.
This is because Japan's amateur radio system is not a blanket licensing system like in the United States.
Specifically, We need a transmission system diagram of the radio (name of the transistor or chip in each block), the voltage of the end stage, and measurements that show that the radio complies with Japanese spurious regulations.
If I can find a transmission system diagram on the internet, spurious measurements (It's OK with TynySA) are not too difficult.
I am just starting to learn about DMRs, so I have purchased several of them and am gathering information on the net.
I have already obtained system diagrams for some of the models, but I still do not have the system diagram for the remaining TYT MD-619 and the model number of the end stage transistor for the MD-UV380.
Ultimately, I plan to email the person or manufacturer who has the information, but I decided to do as much preliminary research as I can on my own, which is why I joined here.
I also plan to use the MD-UV380 and DM-1701 with the OpenGD77.
There is a lot of useful information here on DMR and I will continue to read it.
Thank you for your continuous support.