Mototrbo SLR repeater and XPR 8400

[LowderK]

Ok here is question I have .. we have two repeaters at the same site, one is a SLR 5700 VHF and the other is a XPR 8400 UHF is it possible to like the two together using a cat 5 cable from the Ethernet ports both repeaters are in the same rack mount. what we are trying to do is make the system cross band so no matter what radio you have ( UHF or VHF) all will hear.... there is no internet at the site to do the standard IPSC... thanks for any help

 

[Flyham]

Ok here is question I have .. we have two repeaters at the same site, one is a SLR 5700 VHF and the other is a XPR 8400 UHF is it possible to like the two together using a cat 5 cable from the Ethernet ports both repeaters are in the same rack mount. what we are trying to do is make the system cross band so no matter what radio you have ( UHF or VHF) all will hear.... there is no internet at the site to do the standard IPSC... thanks for any help

A cable like this can do that, however in the digital world it can be STRONGLY DISCOURAGED as double vocoding presents some less than desirable audio characteristics to the end users.

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[Cameron314]

You don't need internet to do IPSC

 

[hitechRadio]

Should work fine networked together, you will want to put a switch in between. And program correctly.

 

[K2NEC]

You don't need internet to do IPSC

Yes, you do
How else are the sites supposed to connect to each other?
IPSC

The IP Site Connect digital solution uses the Internet to extend the coverage of your MOTOTRBO communication system no matter where you’re located.

 

[Firebuff880]

Yes, you do
How else are the sites supposed to connect to each other?
IPSC

No you really don't in this case -- The SLR-5700 should be configured as Site 1 and XPR-8400 as Site 2 with Slot 1 being Wide area and the two linked via a switch. NOW your VHF and your UHF subscribers will be on a "common" Slot / System. I have never built one like this but I have talked with people who have and the Internet connection is only needed if you want remote access / support or have a third non-co-located site, .
Good luck with your project ---

 

[n1das]

A cable like this can do that, however in the digital world it can be STRONGLY DISCOURAGED as double vocoding presents some less than desirable audio characteristics to the end users.

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It looks like this is an analog link between two radios or repeaters. I agree that double vocoding sounds like "expletive". This is not what the OP wants to do. With IPSC, the audio never exists as analog between repeaters.

No you really don't in this case -- The SLR-5700 should be configured as Site 1 and XPR-8400 as Site 2 with Slot 1 being Wide area and the two linked via a switch. NOW your VHF and your UHF subscribers will be on a "common" Slot / System. I have never built one like this but I have talked with people who have and the Internet connection is only needed if you want remote access / support or have a third non-co-located site, .
Good luck with your project ---

I assume "linked via a switch" refers to a network switch in which the CAT5 Ethernet cable from each repeater would be plugged into the switch. IP connectivity would be provided by the switch, even if the local area network you created with the switch doesn't go off-site. You essentially are using IPSC when linking 2 repeaters at the same site with a switch and don't have an internet connection.

 

[TampaTyron]

You can use a switch or cross over cable, but it will work fine. Both bands will be linked. Up to you to decide if you want one slot or both slots linked. Make sure your slots and talkgroups are same in both band radios. TT

 

[kayn1n32008]

Yes, you do
How else are the sites supposed to connect to each other?
IPSC

Private Fibre, private microwave. You absolutely do not have to use the internet to create an IPSC network.

 

[kayn1n32008]

No you really don't in this case -- The SLR-5700 should be configured as Site 1 and XPR-8400 as Site 2 with Slot 1 being Wide area and the two linked via a switch. NOW your VHF and your UHF subscribers will be on a "common" Slot / System. I have never built one like this but I have talked with people who have and the Internet connection is only needed if you want remote access / support or have a third non-co-located site, .
Good luck with your project ---

I'm involved with a private Cap+ system where we have 2 physical sites, that have both VHF and UHF repeaters.

It uses 4 of your available 16 sites to do it, but it works well.

 

[K2NEC]

Private Fibre, private microwave. You absolutely do not have to use the internet to create an IPSC network.

Touche

 

[LowderK]

Ok both repeaters in same building and only running digital ..... can they be linked without internet

 

[K2NEC]

Ok both repeaters in same building and only running digital ..... can they be linked without internet

Yes my mistake

 

[LowderK]

With just a Ethernet cable..?

 

[crazyboy]

With just a Ethernet cable..?

Yes, a crossover cable. I would personally use a switch or router with built in switch. Is this a ham project, or public safety?

 

[LowderK]

This is a personal project in the commercial bands.... but some of us have vhf radios and some have uhf and would like to be able to all talk.... the SLR repeater has two ports and the XPR only has one

 

[crazyboy]

This is a personal project in the commercial bands.... but some of us have vhf radios and some have uhf and would like to be able to all talk.... the SLR repeater has two ports and the XPR only has one

Run a crossover cable from Ethernet 1 on SLR to Ethernet on XPR. Reprogram the two repeaters and boom. About as easy as it gets.

 

[LowderK]

Think you for all the help....

 

[gman1971]

Good thread. Thank you.

Another question, could you make one of the repeaters work in DCDM (single frequency) while the other as a regular frequency pair repeater?

Thanks.

 

[TampaTyron]

Not if they are linked together. TT