Question about So Cal 2 meter freq coordination

[scanfan22]

I found a few freqs (145.725, 145.765 & 145.785) while scanning around the 2 meter band. After a short investigation on the TASMA coordination page I found that these frequencies are listed as Internet Linking
Frequencies (IRLP, Echolink, eQSO). How does that work? I'm specifically confused on the linking part.

 

[N0IU]

Internet Radio Linking Project - Wikipedia, the free encyclopedia

Echolink - Wikipedia, the free encyclopedia

eQSO - Wikipedia, the free encyclopedia

 

[nd5y]

They are using VoIP software to link repeaters or base station radios via the internet.

 

[scanfan22]

Replies

Thanks for all the quick replies. However, I know what IRLP and echolink are and the basics of how they work. I am asking how these particular frequencies are used in those processes. I assume that they are used as links to patch repeaters from the mountain top site to an Internet connection. Please clarify this if possible. Thanks again.

 

[zz0468]

Thanks for all the quick replies. However, I know what IRLP and echolink are and the basics of how they work. I am asking how these particular frequencies are used in those processes. I assume that they are used as links to patch repeaters from the mountain top site to an Internet connection. Please clarify this if possible. Thanks again.

No, they are not used as links from mountain tops to an internet connection. Those frequencies are used for simplex base stations that would be talking to mobile or portable stations. But instead of a microphone on the base station, it might be connected to an IRLP or Echolink port or, perhaps a simplex autopatch.

So, in practical usage, it might go something like this: A mobile station in LA accesses a base station on one of these frequencies and, through the base station, goes out to the internet via IRLP. It connects to an IRLP connected base station in, say, Auckland, New Zealand, where another mobile station is listening. A two way conversation between two mobile units in different parts of the world could then take place.

 

[scanfan22]

Thanks for the clarification.

No, they are not used as links from mountain tops to an internet connection. Those frequencies are used for simplex base stations that would be talking to mobile or portable stations. But instead of a microphone on the base station, it might be connected to an IRLP or Echolink port or, perhaps a simplex autopatch.

So, in practical usage, it might go something like this: A mobile station in LA accesses a base station on one of these frequencies and, through the base station, goes out to the internet via IRLP. It connects to an IRLP connected base station in, say, Auckland, New Zealand, where another mobile station is listening. A two way conversation between two mobile units in different parts of the world could then take place.