Reapeater connection

This forum is for discussions regarding System Infrastructure and Related Equipment. This includes but is not limited to repeaters, base stations, consoles, voters, Voice over IP, system design and implementation, and other related topics.

Moderator: Queue Moderator

Post Reply
KMB
Posts: 120
Joined: Wed Jul 25, 2007 3:52 am

Reapeater connection

Post by KMB »

Hello,
My company have 2 remoted repeaters (Spectra MX800) and our hope is to connect them together also connected with our small console (by a desktop remoted controller ccalled IDA) by E1 lines at the same time.
So our outdoor staff in two zones can talk to each others and the staff in console can call them too.
Does any products in the market that can connect 2 repeaters together via a E1 line and another E1 line connecting to our console?
That just our dreaming which may not work in fact, any simple way to have the same results with min. cost?
Thank you!

KMB
Jim202
Posts: 3610
Joined: Sun Sep 09, 2001 4:00 pm

Re: Reapeater connection

Post by Jim202 »

You have to be careful when connecting 2 repeaters for a number of reasons. First and most important
question is what are the frequencies both are on? If they are the same channel, you could end up with
more issues than you think you are solving.

Second question is how far apart are the 2 repeaters? If their footprint overlaps and the channels are
the same, you will end up creating problems.

Are the connections to the current repeaters via a 2 wire or a 4 wire interface now? If it is a two wire
connection, you may run into interfacing control problems. If it is a 4 wire, the control is much easier.

You can use an E1 connection, but why pay for that type of bandwidth. You should only need a standard
64 K type bandwidth. This can be a leased radio control circuit, microwave, partial T1 or what ever.

Just remember that you need to key one repeater from the audio control of the other. To make a see -
saw system function it takes some careful control. You don't want to create a problem where both
repeaters lock each other up or sit there and ping pong back and forth.

Jim


KMB wrote:Hello,
My company have 2 remoted repeaters (Spectra MX800) and our hope is to connect them together also connected with our small console (by a desktop remoted controller ccalled IDA) by E1 lines at the same time.
So our outdoor staff in two zones can talk to each others and the staff in console can call them too.
Does any products in the market that can connect 2 repeaters together via a E1 line and another E1 line connecting to our console?
That just our dreaming which may not work in fact, any simple way to have the same results with min. cost?
Thank you!

KMB
User avatar
psapengineer
Posts: 175
Joined: Thu Oct 07, 2004 10:00 am

Re: Reapeater connection

Post by psapengineer »

Assmuming you've thought the RF side of this through:

If you're running IP over the E1:

http://www.jps.com/downloads/pdfs/NXU2AData.pdf


Or, if you're running channelized E1:

Search on "E1 Channel Bank"
KMB
Posts: 120
Joined: Wed Jul 25, 2007 3:52 am

Re: Reapeater connection

Post by KMB »

Thanks for your reply!

In our "dream", we hope to allow two groups of staff can talk to each others, right now, we have 4 pairs of repeater channel in high-end VHF (166-171NHz).

Before we have tried the RF connection that works in trial but we hope to have more stable way, so we hope to use private wire for connection.
Our technlical support company told us before the connection is very easy but now they told us that there is difficulty here.
This make us very sad, and I think that I can find some help here, as I hopeless now because we told our supervisior that we get method to do the connection, :x :x :x

Thanks for psapengineer that provide hyperlink for me.
What key words should I search for more information?

Thank you very much!

73 de
KMB
User avatar
psapengineer
Posts: 175
Joined: Thu Oct 07, 2004 10:00 am

Re: Reapeater connection

Post by psapengineer »

KMB,

Is your media between sites fiber or copper and what is the distance? Or is the connectivty between sights already up and running and if so, what speed can you run on the media?

PSAPENGINEER
Post Reply

Return to “Base Stations, Repeaters, General Infrastructure”