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In a message dated 3/23/1999 4:59:54 PM Eastern Standard Time,
patrickn@... writes:

<<
Hello,

I have a repeater system consisting of a Yaesu VXR5000 UHF repeate and a
Computer Automation Technology CAT300 controller. I have the repeater at a
church in my city.. The coverage is not that great, and I would like to
expand it. I am seeking advise on what I need to do. I live south of
Seattle, WA. I have located a nice places for a remote site there, this
would allow my group to communicate between the counties and cities
inbetween. I am not sure how to link the systems so that they are on the
same freq.

I was thinking about putting two mobiles and a controller at the other
site, and using a different PL. That way, when users move out of range,
they can switch PL's and gain access. I have a yaesu and ADI mobile rig,
and a handheld controller to do this with.

Thanks,

Pat N7WGR
>>


I would consider using either some older mobiles, such as the Master II,
Exec II, Micor and Mitrek, one UHF and the Other another band, and set up a
Crossband repeater. This would listen on the current input on UHF, and
retransmit it on the other band to the repeater site, where there would be a
reciever. You will most likely have to use a voter/comparator of some sort so
that the UHF repeater can decide which reciever to make active.

I am sure someone else has a better idea, but this is how I would do it.

Mike

Hello,

I have a repeater system consisting of a Yaesu VXR5000 UHF repeate and a
Computer Automation Technology CAT300 controller. I have the repeater at a
church in my city.. The coverage is not that great, and I would like to
expand it. I am seeking advise on what I need to do. I live south of
Seattle, WA. I have located a nice places for a remote site there, this
would allow my group to communicate between the counties and cities
inbetween. I am not sure how to link the systems so that they are on the
same freq.

I was thinking about putting two mobiles and a controller at the other
site, and using a different PL. That way, when users move out of range,
they can switch PL's and gain access. I have a yaesu and ADI mobile rig,
and a handheld controller to do this with.

Thanks,

Pat N7WGR

Hi,

I will let you know if anyone comes up with a good inexpensive solution!
There are several ways to do it, but I am hoping I can find a way to keep
everything on one frequency, isntead of going cross-band.

At 09:05 AM 3/24/99 -0800, you wrote:

From: Cristobal Inos <soni@...>

Patrick Nicholson wrote:

From: Patrick Nicholson <patrickn@...>

Hello,

I have a repeater system consisting of a Yaesu VXR5000 UHF repeate and a
Computer Automation Technology CAT300 controller. I have the repeater at a
church in my city.. The coverage is not that great, and I would like to
expand it. I am seeking advise on what I need to do. I live south of
Seattle, WA. I have located a nice places for a remote site there, this
would allow my group to communicate between the counties and cities
inbetween. I am not sure how to link the systems so that they are on the
same freq.

I was thinking about putting two mobiles and a controller at the other
site, and using a different PL. That way, when users move out of range,
they can switch PL's and gain access. I have a yaesu and ADI mobile rig,
and a handheld controller to do this with.

Thanks,

Pat N7WGR

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reply:

I am in the pacific islands (Mariana Islands) - Guam, Rota, Tinian
-theisland that launched the atomic bomb that forcedJapan to surrender-
Saipan and 12 additional islands leading to Japan.

I am in the very same situation as you are -what you posted in the list-
There is no technical person around in this small island, Saipan,
population of 15,ooo. Too expensive to employ a technical person.

I am not a technical person...I just bought a company -providing two-way
radio- that went under and I continued to provide services to government
and private sectors for the past 5 years.

If you are successful in connecting different sites,,,keep me posted so
that I can enlist the services of whomever helped you out.

thanks

chris inos
wh6um



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To link a few sites you will do i little engineering.

1.) Will the site coverages overlap?
2.) How will the sites be interconnected? ( RF/Phone/Microwave)
3.) How much are you will to spend?

If the sites are going to overlap you will need to use different TX
frequencies or use VERY expensive high stability transmitters. If there is
enough separation between sites you could use the same tx frequency and
adjust the power to remove the overlap areas. Crossbanding ( is this a
word?) would be the least expensive way to link your sites together. What i
have seen is to feed the receivers back to a voter and send it back out to
the transmitters. Or crossband back to a hub site and crossband back to the
remote site transmitter ( I.E. VHF rx'r at remote site tied to UHF tx'r,
transmitting back to hub UHF repeater. The repeater output would be
recieved at the remote site and transmitted on VHF.) If you have
phone/microwave feed receivers back to voter and then send out to
transmitters. Again if you have overlap coverage then you will have to
operate on different TX frequencies so there is no same frequency overlap.
Hope this helps.

Scott

Patrick Nicholson wrote:

From: Patrick Nicholson <patrickn@...>

Hello,

I have a repeater system consisting of a Yaesu VXR5000 UHF repeate and a
Computer Automation Technology CAT300 controller. I have the repeater at a
church in my city.. The coverage is not that great, and I would like to
expand it. I am seeking advise on what I need to do. I live south of
Seattle, WA. I have located a nice places for a remote site there, this
would allow my group to communicate between the counties and cities
inbetween. I am not sure how to link the systems so that they are on the
same freq.

I was thinking about putting two mobiles and a controller at the other
site, and using a different PL. That way, when users move out of range,
they can switch PL's and gain access. I have a yaesu and ADI mobile rig,
and a handheld controller to do this with.

Thanks,

Pat N7WGR

------------------------------------------------------------------------> Ideas on how we can improve ONElist?

Check out the Suggestion Box feature on our new web site
------------------------------------------------------------------------> This list is sponsored by the owners and users of "RBTIP"

reply:

I am in the pacific islands (Mariana Islands) - Guam, Rota, Tinian
-theisland that launched the atomic bomb that forcedJapan to surrender-
Saipan and 12 additional islands leading to Japan.

I am in the very same situation as you are -what you posted in the list-
There is no technical person around in this small island, Saipan,
population of 15,ooo. Too expensive to employ a technical person.

I am not a technical person...I just bought a company -providing two-way
radio- that went under and I continued to provide services to government
and private sectors for the past 5 years.

If you are successful in connecting different sites,,,keep me posted so
that I can enlist the services of whomever helped you out.

thanks

chris inos
wh6um