linking repeaters?

[motolover]

How do you link repeaters? Do they have to be on the same frequencies?

 

[slicerwizard]

You could ask a real airtime provider, or a radio shop.

 

[chrismol1]

i always thought of nationwide ham repeater network
wouldnt you have to have a lot of rx and tx frequencies for each repeater?
say one at location A is 145.50, then at B it recieves 145.50 then TX on 145.60, and so on to the next repeater until your out of range and reuse that frequency

 

[zz0468]

Start by looking at repeater-builder.com:

http://www.repeater-builder.com/rbtip/repeaterlinking.html

A lot depends on how many repeaters you're linking, and how much money you have to spend. There are several methods, all have their drawbacks... Some some methods have limited functionality, some are very expensive, require LOTS of hardware, and have almost unlimited functionality.

In answer to your question about frequencies, no. You're better if everything can be on a different frequency. But it's not essential, depending on what you have in mind.

Edit: I looked at your other posts and see it's not an amateur repeater you're trying to link. Expect the costs to go up substantially, and the red tape, too. I hope you don't plan on being profitable. Nextel and cellular phone service pretty much killed the two way business for small systems 10 years ago.

 

[kayn1n32008]

repeater linking

for a completely non radio link system check out this page http://www.irlp.net.

there are many different ways to link repeaters.

eg:

point to point rf link

use a repeater as a hub to link in a bunch of other repeaters

lease lines (very pricey)

microwave

internet

 

[kayn1n32008]

edit

the web site i posted in my last post is ham based but with some adaptations has been sucessfully used to link a 911 call centre to public safety repeaters in Alberta Canada

 

[fireSAR]

Southern Ohio has a UHF linked repeater system, it uses 220 as the linking freq. It goes into Kentucky and West Virginia. It has its flaws.

 

[pappy1]

Really, linking is quite simple. It is only a receiver hooked into a repeater [making it have two inputs], it called a remote receiver. The repeater's controler routes the signal to the transmitter. It is brought up by accessing the receiver with an input tone. The advantage of linking is that I live about 1/4 mile from a link system [linked 24/7] to various areas of the state and I can talk 250 miles with a hand held set on el power to another hand held. our gold is to link the whole state. Our 442 machine [the main one] has several remotes on it. You dial the code and it tells you when connected.

 

[zz0468]

Really, linking is quite simple. It is only a receiver hooked into a repeater [making it have two inputs], it called a remote receiver. The repeater's controler routes the signal to the transmitter. It is brought up by accessing the receiver with an input tone. The advantage of linking is that I live about 1/4 mile from a link system [linked 24/7] to various areas of the state and I can talk 250 miles with a hand held set on el power to another hand held. our gold is to link the whole state. Our 442 machine [the main one] has several remotes on it. You dial the code and it tells you when connected.

It CAN be that simple, for example to link two repeaters, you could put an additional receiver on the other repeater's output frequency. But very limited in it's functionality. It can get quite complex, with multiport controllers, full duplex links in several directions, and maybe even multiplexed microwave links. It all boils down to what you want to accomplish, and how big a budget you have. Start by defining the goals first, and then find the cheapest, easiest way of achieving the stated goals.

 

[pappy1]

Any good receiver will work as you program the controller to accept dtmf code and it will put the freq you want it to receive on and the ctcss or dcs tone you select when you call it up. Calling it up is like a phone patch. use a tone to draw up the remote controller put in the freq you want to link set the tone and you are on. On the link next door you enter one tone then three tones for the link [x XXX] and wait for connection notice. To bring it down [XXXxxx ] in bringing the last three X's are the first three of the after the dot in the freq.numbers [example: to bring up machine 145.710 you would enter 24 pause 710] you hear 145.710 now connected and you have the range of the linked repeater. Not all that expencive ifs in your junk box you have an old radio not being used.




Edit: Forgot to say this can be done for any repeater in range that has a remote receiver, all you need is the distant repeaters output freq.

 

[mdulrich]

This is a large linked repeater system. http://farasys.org/

Mike

 

[N_Jay]

How do you link repeaters? Do they have to be on the same frequencies?

It all depends on what you want to do?